Changelog

Version 63.0

Released on 2024-10-29.

Dependencies:

Python 3.13 is now supported
pydyf 0.11.0+ is now needed
tinycss2 1.4.0+ is now needed
tinyhtml5 2.0.0+ is now needed, instead of html5lib

Features:

#2252, #895: Handle page groups, with financial support from Code & Co.
#1630, #2286: Support CSS Color Level 4
#2192: Add PDF variant for debugging purpose
#2208: Support submit inputs in PDF forms
#2139: Support mask-border-* properties
#1831, #2143: Support radio inputs in PDF forms

Bug fixes:

#2262: Avoid integer overflows when converting units from/to doubles
#2260: Avoid float collision with box establishing formatting context
#2240, #2242: Handle svg tags with no size
#2231, #1171, #2222, #1208: Fix several problems related to flex-direction: column
#2239: Don’t fail when SVG markers are undefined references
#2230, #2238: Set explicit flags when loading DLLs on Windows
#2228, #1942: Store original and PDF stream images in different cache slots
#2234: Apply stylesheet and other basic operations to SVG root tag
#2054, #2233: Keep auto margins on flex layout boxes
#1883: Don’t crash with empty list marker strings
#2216: Fix vertical alignment of out-of-flow elements in tables
#996, #2219: Don’t ignore absolutely positioned elements inside flex boxes
#2217: Don’t crash with normal column gaps
#1817: Don’t assume that lines break after spaces
#1868: Don’t break rows with atomic cells
#2166: Don’t display bottom border on cells in split rows
61852c4: Capture fontTools logs when subsetting fonts
#2190: Don’t use a pattern when drawing backgrounds for no-repeat background images
#2185: Check that Harfbuzz version is at least 4.1.0 to subset fonts
#2180: Store width for all glyphs when font is not subset
#2183: Respect break-inside: avoid for flex items
#2055, #2058: Fix right-to-left tables with collapsed borders
#2179, #1128: Handle buggy Adobe Photoshop CMYK JPEGs
#2175: Don’t compress PDF metadata for PDF/A-1
#2174: Fix extra width distribution for auto table layout

Performance:

#1155: Improve rendering speed for large colspan values
#2120, #2178: Use Harfbuzz to subset fonts by default

Documentation:

#2282, #2284: Simplify Alpine install instructions
#2254: Add warning about antivirus false detection
#2220: Add extra information to debug logs
#2211: Fix link to samples
#2195: Update cache argument documentation
#2105, #2151: Use MSYS2 instead of GTK+3 for Windows

Contributors:

Guillaume Ayoub
David Huggins-Daines
Xavid Pretzer
Yann Trividic
Kevin Kays
Alejandro Avilés
Gianluca Teti
Gregory Goodson
Lucie Anglade
Roman Sirokov

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Syslifters
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Simon Sapin
TrainingSparkle
Healthchecks.io
Hammerbacher
Advance Insight
Docraptor
Method B
FieldHub
Yanal-Yvez Fargialla
Morntag
Xavid

Version 62.3

Released on 2024-06-21.

Bug fixes:

#2174: Fix extra width distribution for auto table layout
#2175: Don’t compress PDF metadata for PDF/A-1
61f8bb3: Set default PDF variant values in options before generating PDF
2c4351e: Avoid PDF artifacts when drawing 0-width borders
d9d7f62: Don’t duplicate column when container is split on multiple pages
4617b94: Don’t set default Fontconfig values for unset properties
4c81663: Fix layout when all footnotes are removed from the footnote area
#2184: Make items overflowing grid wrap to the next row/column
#2187: Don’t append useless tracks when grid elements are positioned

Contributors:

Guillaume Ayoub

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Simon Sapin
René Fritz
TrainingSparkle
Healthchecks.io
Hammerbacher
Docraptor
Yanal-Yvez Fargialla
Douwe van Loenen
Morntag
Xavid

Version 62.2

Released on 2024-06-04.

Features:

#2142, #2162: Support grid-auto-flow: column, with financial support from Menutech

Bug fixes:

#2167: Fix space added by CSS gap at the end
#2134: Remove absolute placeholders from discarded content
#2154: Don’t crash when grid items have auto margins
8cdd66f: Fix CSS nesting for nested selectors with comma
3359db5: Fix and test grid shorthand
82deda4: Fix wrong resume_at for split floats
ff2acf1: Ensure that gradient size is positive to please some PDF readers

Contributors:

Guillaume Ayoub

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Simon Sapin
René Fritz
TrainingSparkle
Healthchecks.io
Hammerbacher
Docraptor
Yanal-Yvez Fargialla
Douwe van Loenen
Morntag
Xavid

Version 62.1

Released on 2024-05-06.

Bug fixes:

#2144, #2149: Avoid broken fonts when generating multiple documents
c10c6892: Display at least one grid row on empty pages
#2146: Don’t crash when flex container’s parent’s height is auto

Contributors:

Guillaume Ayoub
Claudius Ellsel

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Simon Sapin
René Fritz
TrainingSparkle
Healthchecks.io
Docraptor
Yanal-Yvez Fargialla
Douwe van Loenen
Morntag
Xavid

Version 62.0

Released on 2024-04-30.

Dependencies:

Python 3.9+ is now needed, Python 3.7 and 3.8 are not supported anymore
pydyf 0.10.0+ is now needed
tinycss2 1.3.0+ is now needed

Features:

#543, #2121: Support CSS Grid layout
#2124, #2125: Support border-image-* properties
#2084, #2077: Support CSS nesting
#2101: Support HTML maxlength attribute for form fields
#2095: Apply overflow to replaced boxes
245e4f5: Add support of PDF/A-?u

Bug fixes:

#2136: Don’t clip aligned text in SVG
#2135: Allow column-direction flex containers to use percentage-based heights
#2128: Don’t crash when a FontConfig object is destroyed early
#2079: Fix executable file for some Windows versions
#2131: Fix alpha for images before/after transparent text
#2111: Handle auto and none values for CSS quotes property
#2103: Don’t crash with overconstrained columns
#2100: Fix rounding error when detecting overflows
#2093, #2097, #2094: Mark use of md5() and sha1() as not for security
#1956, #2087: Use CSS table module level 3 to compute widths
#2086: Fix selects with empty values displaying None
#1112, #2082, #2085: Fix computation for outer min-content width for table cells
016bd81: Fix many different bugs with SVG markers

Performance:

#2130: Cache font key instead of whole font content

Documentation:

#2108: Update documentation about CSS leader() function

Contributors:

Guillaume Ayoub
Lucie Anglade
Xavid Pretzer
kygoh
Germain Gueutier
Vagner José Nicolodi

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Simon Sapin
René Fritz
TrainingSparkle
Healthchecks.io
Docraptor
Yanal-Yvez Fargialla
Douwe van Loenen
Morntag
Xavid

Version 61.2

Released on 2024-03-08.

This is a security update.

We strongly recommend to upgrade WeasyPrint to the latest version if you use WeasyPrint 61.0 or 61.1. Older versions are not impacted.

Security:

Always use URL fetcher for attachments

Contributors:

Guillaume Ayoub
Ilia Novoselov

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
René Fritz
Simon Sapin
Arcanite
TrainingSparkle
Healthchecks.io
Hammerbacher
Docraptor
Yanal-Yvez Fargialla
Morntag
NBCO

Version 61.1

Released on 2024-02-26.

Bug fixes:

#2075: Use default value when variable is not defined
#2070: Don’t crash when rendering SVGs with non-text a children
Don’t crash when SVG file can’t be rendered

Documentation:

#2067: Suggest “dnf” instead of “yum” to install Fedora packages
Improve documentation for Windows
Fix required version of TinyCSS2

Contributors:

Guillaume Ayoub
Felix Schwarz
Lucie Anglade

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
René Fritz
Simon Sapin
Arcanite
TrainingSparkle
Healthchecks.io
Hammerbacher
Docraptor
Yanal-Yvez Fargialla
Morntag
NBCO

Version 61.0

Released on 2024-02-12.

Python API:

DocumentMetadata.attachments is now a list of Attachment objects, not a list of (url, description) tuples.

New features:

#1219, #2017: Support var() in shorthand and multiple-value functions
#1986: Support percentages for opacity
#2050: Build executable file for Windows
#2000: Support select fields
#1993: Handle background-attachment: fixed to cover the whole page
#2023, #2022: Allow text-based file objects for HTML and CSS classes
#2014: Remove warnings for PDF/A and PDF/UA compatibility

Bug fixes:

#2052, #1869: Handle attachments for PDF/A documents
#2013, #2051: Apply margin to running tables
#1278, #1884: Draw collapsed borders of running tables
#2029: Fix page counter in non-root absolute boxes
#2043: Fix text-anchor on SVG tspan elements
#1968, #2039: Use cell’s border-height to calculate table row height
#2030: Ensure that bounding box is set to invisible text tags
#2040, #2041: Don’t crash on malformed URLs
#2026: Don’t break pages when fixed-height elements don’t overflow page
#2038: Don’t mix original streams when drawing transparent text
#2016: Avoid duplication when breaking out-of-flow boxes
#2012: Don’t crash when CSS properties have no value
#2010, #1287: Fix many corner cases with CSS variables
#1996: Don’t crash when drawing groove/ridge collapsed borders
#1982: Fix SVG markers size, position and drawing

Documentation:

#2021, #2048: Replace non-virtualenv installation instructions with distribution packages

Contributors:

Guillaume Ayoub
kygoh
Lucie Anglade
Timo Ramsauer
Alexander Gitter
Michael Lisitsa
Vagner José Nicolodi
Manolis Stamatogiannakis
Pascal de Bruijn
Viktor Shevtsov
Eduardo Gonzalez
Kesara Rathnayake

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
René Fritz
Simon Sapin
Arcanite
TrainingSparkle
Healthchecks.io
Hammerbacher
Docraptor
Yanal-Yvez Fargialla
Morntag
NBCO

Version 60.2

Released on 2023-12-11.

Bug fixes:

#1982: Fix SVG markers size, position and drawing
23cfc775: Draw background behind absolutely positioned replaced boxes
fe2f0c69: Don’t crash with bitmap fonts with no “glyf” table
14605225: Improve SVG text-anchor attribute

Contributors:

Guillaume Ayoub

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Nicola Auchmuty
Syslifters
Hammerbacher
TrainingSparkle
Daniel Kucharski
Healthchecks.io
Yanal-Yvez Fargialla
WakaTime
Paheko
Synapsium
DocRaptor

Version 60.1

Released on 2023-09-29.

Bug fixes:

#1973: Fix crash caused by wrong UTF-8 indices

Contributors:

Guillaume Ayoub

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Nicola Auchmuty
Syslifters
Hammerbacher
TrainingSparkle
Daniel Kucharski
Healthchecks.io
Yanal-Yvez Fargialla
WakaTime
Paheko
Synapsium
DocRaptor

Version 60.0

Released on 2023-09-25.

New features:

#1903: Print form fields
#1922: Add support for textLength and lengthAdjust in SVG text elements
#1965: Handle <wbr> tag
#1970: Handle y offset of glyphs
#1909: Add a –timeout option

Bug fixes:

#1887: Fix footnote-call displayed incorrectly for some fonts
#1890: Fix page-margin boxes layout algorithm
#1908: Fix IndexError when rendering PDF version 1.4
#1906: Apply text transformations to first-letter pseudo elements
#1915: Avoid footnote appearing before its call
#1934: Fix balance before “column-span: all”
#1935: Only draw required glyph with OpenType-SVG fonts
#1595: Don’t draw clipPath when defined after reference
#1895: Don’t ignore min-width when computing cell size
#1899: Fix named pages inheritance
#1936: Avoid page breaks caused by children of overflow hidden boxes
#1943: Use bleed area for page’s painting area
#1946: Use margin box of children to define available width for leaders

Contributors:

Guillaume Ayoub
Sahil Rohilla
Azharuddin Syed
kygoh
Andy Lenards
Gaurav Samudra
Michael Wedl
Lucie Anglade
Obeida Shamoun
Evgeniy Krysanov

Backers and sponsors:

Spacinov
Kobalt
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Nicola Auchmuty
Syslifters
Hammerbacher
TrainingSparkle
Daniel Kucharski
Healthchecks.io
Yanal-Yvez Fargialla
WakaTime
Paheko
Synapsium
DocRaptor

Version 59.0

Released on 2023-05-11.

This version also includes the changes from unstable b1 version listed below.

Bug fixes:

#1864: Handle overflow for svg and symbol tags in SVG images
#1867: Remove duplicate compression of attachments
d0ad5c1: Override use tag children instead of drawing their references
93df1a5: Don’t resize the same image twice when the –dpi option is set
#1874: Drawn underline and overline behind text

Contributors:

Guillaume Ayoub
Timo Ramsauer
Alexander Mankuta

Backers and sponsors:

Castedo Ellerman
Kobalt
Spacinov
Grip Angebotssoftware
Crisp BV
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Moritz Mahringer
Yanal-Yvez Fargialla
Piotr Horzycki
Healthchecks.io
TrainingSparkle
Hammerbacher
Synapsium

Version 59.0b1

Released on 2023-04-14.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Command-line API:

The --optimize-size option and its short equivalent -O have been deprecated. To activate or deactivate different size optimizations, you can now use:
- --uncompressed-pdf,
- --optimize-images,
- --full-fonts,
- --hinting,
- --dpi <resolution>, and
- --jpeg-quality <quality>.
A new --cache-folder <folder> option has been added to store temporary data in the given folder on the disk instead of keeping them in memory.

Python API:

Global rendering options are now given in **options instead of dedicated parameters, with slightly different names. It means that the signature of the HTML.render(), HTML.write_pdf() and Document.write_pdf() has changed. Here are the steps to port your Python code to v59.0:
1. Use named parameters for these functions, not positioned parameters.
2. Rename some the parameters:
  - image_cache becomes cache (see below),
  - identifier becomes pdf_identifier,
  - variant becomes pdf_variant,
  - version becomes pdf_version,
  - forms becomes pdf_forms.
The optimize_size parameter of HTML.render(), HTML.write_pdf() and Document() has been removed and will be ignored. You can now use the uncompressed_pdf, full_fonts, hinting, dpi and jpeg_quality parameters that are included in **options.
The cache parameter can be included in **options to replace image_cache. If it is a dictionary, this dictionary will be used to store temporary data in memory, and can be even shared between multiple documents. If it’s a folder Path or string, WeasyPrint stores temporary data in the given temporary folder on disk instead of keeping them in memory.

New features:

#1853, #1854: Reduce PDF size, with financial support from Code & Co.
#1824, #1829: Reduce memory use for images
#1858: Add an option to keep hinting information in embedded fonts

Bug fixes:

#1855: Fix position of emojis in justified text
#1852: Don’t crash when line can be split before trailing spaces
#1843: Fix syntax of dates in metadata
#1827, #1832: Fix word-spacing problems with nested tags

Documentation:

#1841: Add a paragraph about unsupported calc() function

Contributors:

Guillaume Ayoub
Lucie Anglade
Alex Ch
whi_ne
Jonas Castro

Backers and sponsors:

Castedo Ellerman
Kobalt
Spacinov
Grip Angebotssoftware
Crisp BV
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Moritz Mahringer
Yanal-Yvez Fargialla
Piotr Horzycki
Healthchecks.io
TrainingSparkle
Hammerbacher
Synapsium

Version 58.1

Released on 2023-03-07.

Bug fixes:

#1815: Fix bookmarks coordinates
#1822, #1823: Fix vertical positioning for absolute replaced elements

Documentation:

#1814: Fix broken link pointing to samples

Contributors:

Guillaume Ayoub
Jonas Castro
Lucie Anglade
Menelaos Kotoglou

Backers and sponsors:

Kobalt
Grip Angebotssoftware
Spacinov
Crisp BV
Castedo Ellerman
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Moritz Mahringer
Yanal-Yvez Fargialla
Piotr Horzycki
Healthchecks.io
Hammerbacher
TrainingSparkle
Synapsium

Version 58.0

Released on 2023-02-17.

This version also includes the changes from unstable b1 version listed below.

Bug fixes:

#1807: Don’t crash when out-of-flow box is split in out-of-flow parent
#1806: Don’t crash when fixed elements aren’t displayed yet in aborted line
#1809: Fix background drawing for out-of-the-page transformed boxes

Contributors:

Guillaume Ayoub

Backers and sponsors:

Kobalt
Grip Angebotssoftware
Crisp BV
Spacinov
Castedo Ellerman
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Moritz Mahringer
Yanal-Yvez Fargialla
Piotr Horzycki
Healthchecks.io

Version 58.0b1

Released on 2023-02-03.

This version is experimental, don’t use it in production. If you find bugs, please report them!

New features:

#61, #1796: Support PDF forms, with financial support from Personalkollen
#1173: Add style for form fields

Bug fixes:

#1777: Detect JPEG/MPO images as normal JPEG files
#1771: Improve SVG gradients

Contributors:

Guillaume Ayoub
Lucie Anglade

Backers and sponsors:

Kobalt
Grip Angebotssoftware
Crisp BV
Spacinov
Castedo Ellerman
Manuel Barkhau
SimonSoft
Menutech
KontextWork
NCC Group
René Fritz
Moritz Mahringer
Yanal-Yvez Fargialla
Piotr Horzycki
Healthchecks.io

Version 57.2

Released on 2022-12-23.

Bug fixes:

0f2e377: Print annotations with PDF/A
0e9426f: Hide annotations with PDF/UA
#1764: Use reference instead of stream for annotation appearance stream
#1783: Fix multiple font weights for @font-face declarations

Contributors:

Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Tom Pohl
Castedo Ellerman
Moritz Mahringer
Piotr Horzycki
Gábor Nyers
Sidharth Kapur

Version 57.1

Released on 2022-11-04.

Dependencies:

#1754: Pillow 9.1.0 is now needed

Bug fixes:

#1756: Fix rem font size for SVG images
#1755: Keep format when transposing images
#1753: Don’t use deprecated read_text function when files is available
#1741: Generate better manpage
#1747: Correctly set target counters in pages’ absolute elements
#1748: Always set font size when font is changed in line
2b05137: Fix stability of font identifiers

Documentation:

#1750: Fix documentation spelling

Contributors:

Guillaume Ayoub
Eli Schwartz
Mikhail Anikin
Scott Kitterman

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Tom Pohl
John R Ellis
Castedo Ellerman
Moritz Mahringer
Gábor
Piotr Horzycki

Version 57.0

Released on 2022-10-18.

This version also includes the changes from unstable b1 version listed below.

New features:

a4fc7a1: Support image-orientation

Bug fixes:

#1739: Set baseline on all flex containers
#1740: Don’t crash when currentColor is set on root svg tag
#1718: Don’t crash with empty bitmap glyphs
#1736: Always use the font’s vector variant when possible
eef8b4d: Always set color and state before drawing
#1662: Use a stable key to store stream fonts
#1733: Don’t remove attachments when adding internal anchors
3c4fa50, c215697, d275dac, b04bfff: Fix many bugs related to PDF/UA structure

Performance:

dfccf1b: Use faces as fonts dictionary keys
0dc12b6: Cache add_font to avoid calling get_face too often
75e17bf: Don’t call process_whitespace twice on many children
498d3e1: Optimize __missing__ functions

Documentation:

863b3d6: Update documentation of installation on macOS with Homebrew

Contributors:

Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Tom Pohl
John R Ellis
Castedo Ellerman
Moritz Mahringer
Gábor
Piotr Horzycki

Version 57.0b1

Released on 2022-09-22.

This version is experimental, don’t use it in production. If you find bugs, please report them!

New features:

#1704: Support PDF/UA, with financial support from Novareto
#1454: Support variable fonts

Bug fixes:

#1058: Fix bullet position after page break, with financial support from OpenZeppelin
#1707: Fix footnote positioning in multicolumn layout, with financial support from Code & Co.
#1722: Handle skew transformation with only one parameter
#1715: Don’t crash when images are truncated
#1697: Don’t crash when attr() is used in text-decoration-color
#1695: Include language information in PDF metadata
#1612: Don’t lowercase letters when capitalizing text
#1700: Fix crash when rendering footnote with repagination
#1667: Follow EXIF metadata for image rotation
#1669: Take care of floats when remvoving placeholders
#1638: Use the original box when breaking waiting children

Contributors:

Guillaume Ayoub
Konstantin Weddige
VeteraNovis
Lucie Anglade

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Tom Pohl
John R Ellis
Moritz Mahringer
Gábor
Piotr Horzycki
Andrew Ittner

Version 56.1

Released on 2022-07-24.

Bug fixes:

#1674: Follow max-height on footnot area, with financial support from Code & Co.
#1678: Fix gradients with opacity set

Contributors:

Guillaume Ayoub
Lucie Anglade

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki
Andrew Ittner

Version 56.0

Released on 2022-07-07.

This version also includes the changes from unstable b1 version listed below.

New features:

70f9b62: Support format 5 for bitmap glyphs

Bug fixes:

#1666 Fix reproducible PDF generation with embedded images
#1668: Fix @page:nth() selector
3bd9a8e: Don’t limit the opacity groups to the original box size
cb9540b, 76d174f, 9ce6547: Minor bugfixes for split table rows

Contributors:

Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Des images et des mots
Andreas Zettl
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki

Version 56.0b1

Released on 2022-06-17.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Dependencies:

pydyf 0.2.0+ is now needed

New features:

#1660: Support nested line-clamp, with financial support from Expert Germany
#1644, #1645: Support bitmap fonts, with financial support from Expert Germany
#1651, #630: Support PDF/A, with financial support from Blueshoe

Bug fixes:

#1656: Fix chained variables in the same selector block
#1028: Fix font weight management in @font-face rules
#1653: Don’t crash when @font-face’s src ends with a comma
#1650: Don’t check origin when URL only contains fragment
e38bff8: Don’t crash when inherited SVG attributes are not set on the parent

Performance:

e6021da: Launch tests in parallel by default

Contributors:

Guillaume Ayoub
aschmitz
Lucie Anglade

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Des images et des mots
Andreas Zettl
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki

Version 55.0

Released on 2022-05-12.

This version also includes the changes from unstable b1 version listed below.

Bug fixes:

#1626, 3802f88: Fix the vertical position and available height of absolute boxes
9641098, e5e6b88: Minor fixes for multi-column layout
0fcc7de: Don’t stop rendering SVG when CSS parsing fails
#1636: Fix sequential footnotes that could disappear when overflowing
#1637: Fix position of absolute boxes with right-to-left direction
#1641: Fix relative paths for SVG files stored as data URLs

Contributors:

Guillaume Ayoub
aschmitz

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
Spacinov
KontextWork
René Fritz
NCC Group
Kobalt
Nathalie Gutton
Andreas Zettl
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki

Version 55.0b1

Released on 2022-04-15.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Dependencies:

Python 3.7+ is now needed, Python 3.6 is not supported anymore

New features:

#1534: Support word-break: break-all
#489, #1619: Support column breaks
#1553: Allow reproducible PDF generation

Bug fixes:

#1007, #1524: Handle inherit in shorthand properties
#1539, #1541: Space out no-repeat patterns
#1554: Avoid invalid PDF operators when drawing SVG text
#1564, #1566, #1570: Don’t output footnotes before their call sites
#1020, #1597: Prevent infinite loops in multi-column layout
#1512, #1613: Fix position of absolute boxes in right-to-left contexts
#1093: Draw borders around absolute replaced boxes
#984, #1604: Fix skip stacks for columns
#1621: Better support of nested text-decoration properties
fe1f3d9: Fix absolute blocks in lines
4650b70: Clear adjoining margins when a container’s child doesn’t fit

Performance:

#1548: Improve tests speed
3b0ae92, #1457: Improve fonts management
#1597: Improve column layout speed
#1587, #1607, #1608: Cache ch and ex units calculations

Contributors:

Guillaume Ayoub
aschmitz
Lucie Anglade
Christoph Kepper
Jack Lin
Rian McGuire

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
KontextWork
Maykin Media
René Fritz
NCC Group
Spacinov
Nathalie Gutton
Andreas Zettl
Tom Pohl
Kobalt
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki
DeivGuerrero

Version 54.3

Released on 2022-04-04.

Bug fixes:

#1588: Support position: absolute in footnotes
#1586: Fix discarded text-align values

Contributors:

aschmitz
Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
KontextWork
Maykin Media
René Fritz
NCC Group
Spacinov
Nathalie Gutton
Andreas Zettl
Tom Pohl
Kobalt
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki
DeivGuerrero

Version 54.2

Released on 2022-02-27.

Bug fixes:

#1575: Always store parent blocks children as lists
#1574, #1559: Fix float rounding errors
#1571: Ignore unknown glyphs
#1561, #1562: Fix line break when breaks occur between a nbsp and an inline block
#1560: Always set the child index
#1558: Fix patterns with use tags

Contributors:

Guillaume Ayoub
Lucie Anglade
Jack Lin
aschmitz

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
Crisp BV
SimonSoft
Menutech
KontextWork
Maykin Media
René Fritz
NCC Group
Spacinov
Nathalie Gutton
Andreas Zettl
Tom Pohl
Kobalt
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki
DeivGuerrero

Version 54.1

Released on 2022-01-31.

New features:

#1547: Handle break-inside: avoid on tr tags

Bug fixes:

#1540, #1239: Handle absolute children in running elements
#1538: Handle invalid values in text-align
#1536: Handle absolute flex boxes

Contirbutors:

Guillaume Ayoub
Lucie Anglade

Backers and sponsors:

H-Net: Humanities and Social Sciences Online
Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Crisp BV
Maykin Media
René Fritz
Simon Sapin
NCC Group
Nathalie Gutton
Andreas Zettl
Tom Pohl
Spacinov
Des images et des mots
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki

Version 54.0

Released on 2022-01-08.

This version also includes the changes from unstable b1 version listed below.

Bug fixes:

#1531: Always use absolute paths to get hrefs in SVG
#1523: Fix many rendering problems of broken tables
e1aee70: Fix support of fonts with SVG emojis

Contirbutors:

Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Crisp BV
Maykin Media
René Fritz
Simon Sapin
NCC Group
Nathalie Gutton
Andreas Zettl
Tom Pohl
Des images et des mots
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki

Version 54.0b1

Released on 2021-12-13.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Dependencies:

html5lib 1.1+ is now needed.

New features:

#1509: Support footnotes, with financial support from Code & Co.
#36: Handle parallel flows for floats, absolutes, table-cells
#1389: Support text-align-last and text-align-all properties
#1434: Draw SVG and PNG emojis
#1520: Support overflow-wrap: anywhere
#1435: Add environment variable to set DLL folder on Windows

Performance:

#1439: Cache SVG use tags
#1481: Encode non-JPEG images as PNGs instead of JPEG2000s

Bug fixes:

#137: Don’t use text-transform text for content-based uses
#1443: Don’t serialize and parse again inline SVG files
#607: Correctly handle whitespaces in bookmark labels
#1094: Fix column height with column-span content
#1473: Fix absolutely positioned boxes in duplicated pages
#1491: Fix target-counter attribute in flex items
#1515, #1508: Don’t draw empty glyphs
#1499: Don’t crash when font size is really small

Documentation:

#1519: Fix typo

Packaging:

The source package does not include a setup.py file anymore. You can find more information about this in issue #1410.

Contirbutors:

Guillaume Ayoub
Lucie Anglade
Colin Kinloch
aschmitz
Pablo González
Rian McGuire

Backers and sponsors:

Grip Angebotssoftware
Manuel Barkhau
SimonSoft
Menutech
KontextWork
Crisp BV
Maykin Media
René Fritz
Simon Sapin
NCC Group
Nathalie Gutton
Andreas Zettl
Tom Pohl
Des images et des mots
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
Gábor
Piotr Horzycki

Version 53.4

Released on 2021-11-14.

Bug fixes:

#1446: Fix background on pages with a bleed property
#1455: Use SVG width/height as inner size when no viewBox is given
#1469: Only enable letter- and word-spacing when needed
#1471: Don’t display inputs with “hidden” type
#1485: Allow quotes in url() syntax for SVG, Use better approximations for font ascent and descent values in SVG
#1486: Fix images embedded from multiple pages
#1489: Use a better hash for fonts to avoid collisions
abd54c4: Set SVG ratio when width and height are 0

Contributors:

Guillaume Ayoub
Lucie Anglade

Backers and sponsors:

Grip Angebotssoftware
SimonSoft
Menutech
Manuel Barkhau
Simon Sapin
KontextWork
René Fritz
Maykin Media
NCC Group
Crisp BV
Des images et des mots
Andreas Zettl
Nathalie Gutton
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla
1. Allard
Gábor

Version 53.3

Released on 2021-09-10.

Bug fixes:

#1431, #1440: Fix crashes and malformed PDF files
#1430: Handle cx and cy in SVG rotations
#1436: Fix marker-start being drawn on mid vertices

Contributors:

Guillaume Ayoub
Rian McGuire
Lucie Anglade

Backers and sponsors:

Grip Angebotssoftware
SimonSoft
Menutech
Manuel Barkhau
Simon Sapin
KontextWork
René Fritz
Maykin Media
NCC Group
Des images et des mots
Andreas Zettl
Nathalie Gutton
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla

Version 53.2

Released on 2021-08-27.

New features:

#1428: Re-add the make_bookmark_tree() method

Bug fixes:

#1429: Fix package deployed on PyPI

Contributors:

Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
PDF Blocks
SimonSoft
Menutech
Manuel Barkhau
Simon Sapin
KontextWork
René Fritz
Maykin Media
NCC Group
Des images et des mots
Andreas Zettl
Nathalie Gutton
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla

Version 53.1

Released on 2021-08-22.

Bug fixes:

#1409: Don’t crash when leaders are in floats
#1414: Embed images once
#1417: Fix crash with SVG intrinsic ratio

Documentation:

#1422: Include weasyprint.tools removal in documentation

Contributors:

Guillaume Ayoub

Backers and sponsors:

Grip Angebotssoftware
PDF Blocks
SimonSoft
Menutech
Manuel Barkhau
Simon Sapin
KontextWork
René Fritz
Maykin Media
NCC Group
Des images et des mots
Andreas Zettl
Nathalie Gutton
Tom Pohl
Moritz Mahringer
Florian Demmer
Yanal-Yvez Fargialla

Version 53.0

Released on 2021-07-31.

This version also includes the changes from unstable b1 and b2 versions listed below.

Dependencies:

Pango 1.44.0+ is now needed.
pydyf 0.0.3+ is now needed.
fontTools 4.0.0+ is now needed.
html5lib 1.0.1+ is now needed.

API changes:

FontConfiguration is now in the weasyprint.text.fonts module.
--format and --resolution options have been deprecated, PDF is the only output format supported.
--optimize-images option has been deprecated and replaced by --optimize-size, allowing images, fonts, all and none values.
weasyprint.tools have been removed.
Document.resolve_links, Document.make_bookmark_tree and Document.add_hyperlinks have been removed.

Performance:

Improve image management

New features:

#1374: Support basic “clipPath” in SVG

Bug fixes:

#1369: Render use path in SVG
#1370: Fix fill color on use path in SVG
#1371: Handle stroke-opacity and fill-opacity
#1378: Fix crash with borders whose widths are in em
#1394: Fix crash on draw_pattern
#880: Handle stacking contexts put in contexts by previous generations
#1386: Catch font subsetting errors
#1403: Fix how x and y attributes are handled in SVG
#1399, #1401: Don’t crash when use tags reference non-existing element
#1393: Handle font collections
#1408: Handle x and y attributes in use tags

Documentation:

#1391, #1405: Add documentation for installation

Contributors:

Guillaume Ayoub
Lucie Anglade
Pelle Bo Regener
aschmitz
John Jackson
Felix Schwarz
Syrus Dark
Christoph Päper

Backers and sponsors:

OpenEdition
Grip Angebotssoftware
Simonsoft
PDF Blocks
Menutech
Manuel Barkhau
print-css.rocks
Simon Sapin
KontextWork
René Fritz
Maykin Media
Nathalie Gutton
Andreas Zettl
Tom Pohl
NCC Group
Moritz Mahringer
Florian Demmer
Des images et des mots
Mohammed Y. Alnajdi
Yanal-Yvez Fargialla
Yevhenii Hyzyla

Version 53.0b2

Released on 2021-05-30.

This version is experimental, don’t use it in production. If you find bugs, please report them!

New features:

#359: Embed full sets of fonts in PDF

Bug fixes:

#1345: Fix position of SVG use tags
#1346: Handle “stroke-dasharray: none”
#1352, #1358: Sort link target identifiers
#1357: Fix font information
#1362: Handle visibility and display properties in SVG
#1365: Cascade inherited attributes for use tags
#1366: Correctly handle style attributes in SVG
#1367: Include line stroke in box bounding

Documentation:

#1341: Fix typos

Contributors:

Guillaume Ayoub
aschmitz
John Jackson
Lucie Anglade
Pelle Bo Regener

Backers and sponsors:

OpenEdition
print-css.rocks
Simonsoft
PDF Blocks
Menutech
Manuel Barkhau
Simon Sapin
Grip Angebotssoftware
KontextWork
René Fritz
Nathalie Gutton
Andreas Zettl
Tom Pohl
Maykin Media
Moritz Mahringer
Florian Demmer
Mohammed Y. Alnajdi
NCC Group
Des images et des mots
Yanal-Yvez Fargialla
Yevhenii Hyzyla

Version 53.0b1

Released on 2021-04-22.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Dependencies:

This version uses its own PDF generator instead of Cairo. Rendering may be different for text, gradients, SVG images…
Packaging is now done with Flit.

New features:

#1328: Add ISO and JIS paper sizes
#1309: Leader support, with financial support from Simonsoft

Bug fixes:

#504: Fix rendering bugs with PDF gradients
#606: Fix rounding errors on PDF dimensions
#1264: Include witdh/height when calculating auto margins of absolute boxes
#1191: Don’t try to get an earlier page break between columns
#1235: Include padding, border, padding when calculating inline-block width
#1199: Fix kerning issues with small fonts

Documentation:

#1298: Rewrite documentation

Contributors:

Guillaume Ayoub
Lucie Anglade
Felix Schwarz
Syrus Dark
Christoph Päper

Backers and sponsors:

Simonsoft
PDF Blocks
Menutech
Manuel Barkhau
Simon Sapin
Nathalie Gutton
Andreas Zettl
René Fritz
Tom Pohl
KontextWork
Moritz Mahringer
Florian Demmer
Maykin Media
Yanal-Yvez Fargialla
Des images et des mots
Yevhenii Hyzyla

Version 52.5

Released on 2021-04-17.

Bug fixes:

#1336: Fix text breaking exception
#1318: Fix @font-face rules with Pango 1.48.3+

Contributors:

Guillaume Ayoub

Backers and sponsors:

Simonsoft
PDF Blocks
Menutech
Manuel Barkhau
Simon Sapin
Nathalie Gutton
Andreas Zettl
René Fritz
Tom Pohl
KontextWork
Moritz Mahringer
Florian Demmer
Maykin Media
Yanal-Yvez Fargialla
Des images et des mots
Yevhenii Hyzyla

Version 52.4

Released on 2021-03-11.

Bug fixes:

#1304: Don’t try to draw SVG files with no size
ece5f066: Avoid crash on last word detection
4ee42e48: Remove last word before ellipses when hyphenated

Contributors:

Guillaume Ayoub

Backers and sponsors:

PDF Blocks
Simonsoft
Menutech
Simon Sapin
Manuel Barkhau
Andreas Zettl
Nathalie Gutton
Tom Pohl
René Fritz
Moritz Mahringer
Florian Demmer
KontextWork
Michele Mostarda

Version 52.3

Released on 2021-03-02.

Bug fixes:

#1299: Fix imports with url() and quotes

New features:

#1300: Add support of line-clamp, with financial support from expert Germany

Contributors:

Guillaume Ayoub
Lucie Anglade

Backers and sponsors:

PDF Blocks
Simonsoft
Menutech
Simon Sapin
Manuel Barkhau
Andreas Zettl
Nathalie Gutton
Tom Pohl
Moritz Mahringer
Florian Demmer
KontextWork
Michele Mostarda

Version 52.2

Released on 2020-12-06.

Bug fixes:

238e214: Fix URL handling with tinycss2
#1248: Include missing test data
#1254: Top margins removed from children when tables are displayed on multiple pages
#1250: Correctly draw borders on the last line of split tables
a6f9c80: Add a nice gif to please gdk-pixbuf 2.42.0

Contributors:

Guillaume Ayoub
Lucie Anglade
Felix Schwarz

Backers and sponsors:

PDF Blocks
Simonsoft
Menutech
Simon Sapin
Nathalie Gutton
Andreas Zetti
Tom Pohl
Florian Demmer
Moritz Mahringer

Version 52.1

Released on 2020-11-02.

Bug fixes:

238e214: Fix URL handling with tinycss2

Contributors:

Guillaume Ayoub

Backers and sponsors:

Simonsoft
Simon Sapin
Nathalie Gutton
Andreas Zettl
Florian Demmer
Moritz Mahringer

Version 52

Released on 2020-10-29.

Dependencies:

Python 3.6+ is now needed, Python 3.5 is not supported anymore
WeasyPrint now depends on Pillow

New features:

#1019: Implement counter-set
#1080: Don’t display template tags
#1210: Use download attribute in a tags for attachment’s filename
#1206: Handle strings in list-style-type
#1165: Add support for concatenating var() functions in content declarations
c56b96b: Add an option to optimize embedded images size, with financial support from Hashbang
#969: Add an image cache that can be shared between documents, with financial support from Hashbang

Bug fixes:

#1141: Don’t clip page margins on account of body overflow
#1000: Don’t apply text-indent twice on inline blocks
#1051: Avoid random line breaks
#1120: Gather target counters in page margins
#1110: Handle most cases for boxes avoiding floats in rtl containers, with financial support from Innovative Software
#1111: Fix horizontal position of last rtl line, with financial support from Innovative Software
#1114: Fix bug with transparent borders in tables
#1146: Don’t gather bookmarks twice for blocks that are displayed on two pages
#1237: Use fallback fonts on unsupported WOFF2 and WOFF fonts
#1025: Don’t insert the same layout attributes multiple times
#1027: Don’t try to break tables after the header or before the footer
#1050: Don’t crash on absolute SVG files with no intrinsic size
#1204: Fix a crash with a flexbox corner case
#1030: Fix frozen builds
#1089: Fix Pyinstaller builds
#1216: Fix embedded files
#1225: Initial support of RTL direction in flexbox layout

Documentation:

#1149: Add the --quiet CLI option in the documentation
#1061: Update install instructions on Windows

Tests:

#1209: Use GitHub Actions instead of Travis

Contributors:

Guillaume Ayoub
Lucie Anglade
Tontyna
Mohammed Y. Alnajdi
Mike Voets
Bjarni Þórisson
Balázs Dukai
Bart Broere
Endalkachew
Felix Schwarz
Julien Sanchez
Konstantin Alekseev
Nicolas Hart
Nikolaus Schlemm
Thomas J. Lampoltshammer
mPyth
nempoBu4
saddy001

Backers and sponsors:

Hashbang
Innovative Software
Screenbreak
Simon Sapin
Lisa Warshaw
Nathalie Gutton
Andreas Zettl
Florian Demmer
Moritz Mahringer

Version 51

Released on 2019-12-23.

Dependencies:

Pyphen 0.9.1+ is now needed

New features:

#882: Add support of element() and running()
#972: Add HTML element to Box class
7a4d6f8: Support larger and smaller values for font-size

Bug fixes:

#960: Fix how fonts used for macOS tests are installed
#956: Fix various crashes due to line breaking bugs
#983: Fix typo in variable name
#975: Don’t crash when string-set is set to none
#998: Keep font attributes when text lines are modified
#1005: Don’t let presentational hints add decorations on tables with no borders
#974: Don’t crash on improper var() values
#1012: Fix rendering of header and footer for empty tables
#1013: Avoid quadratic time relative to tree depth when setting page names

Contributors:

Lucie Anglade
Guillaume Ayoub
Guillermo Bonvehí
Holger Brunn
Felix Schwarz
Tontyna

Version 50

Released on 2019-09-19.

New features:

#209: Make break-* properties work inside tables
#661: Make blocks with overflow: auto grow to include floating children

Bug fixes:

#945: Don’t break pages between a list item and its marker
#727: Avoid tables lost between pages
#831: Ignore auto margins on flex containers
#923: Fix a couple of crashes when splitting a line twice
#896: Fix skip stack order when using a reverse flex direction

Contributors:

Lucie Anglade
Guillaume Ayoub

Version 49

Released on 2019-09-11.

Performance:

Speed and memory use have been largely improved.

New features:

#700: Handle ::marker pseudo-selector
135dc06c: Handle recto and verso parameters for page breaks
#907: Provide a clean way to build layout contexts

Bug fixes:

#937: Fix rendering of tables with empty lines and rowspans
#897: Don’t crash when small columns are wrapped in absolute blocks
#913: Fix a test about gradient colors
#924: Fix title for document with attachments
#917: Fix tests with Pango 1.44
#919: Fix padding and margin management for column flex boxes
#901: Fix width of replaced boxes with no intrinsic width
#906: Don’t respect table cell width when content doesn’t fit
#927: Don’t use deprecated logger.warn anymore
a8662794: Fix margin collapsing between caption and table wrapper
87d9e84f: Avoid infinite loops when rendering columns
789b80e6: Only use in flow children to set columns height
615e298a: Don’t include floating elements each time we try to render a column
48d8632e: Avoid not in flow children to compute column height
e7c452ce: Fix collapsing margins for columns
fb0887cf: Fix crash when using currentColor in gradients
f66df067: Don’t crash when using ex units in word-spacing in letter-spacing
c790ff20: Don’t crash when properties needing base URL use var functions
d63eac31: Don’t crash with object-fit: non images with no intrinsic size

Documentation:

#900: Add documentation about semantic versioning
#692: Add a snippet about PDF magnification
#899: Add .NET wrapper link
#893: Fixed wrong nested list comprehension example
#902: Add state to the make_bookmark_tree documentation
#921: Fix typos in the documentation
#328: Add CSS sample for forms

Contributors:

Lucie Anglade
Guillaume Ayoub
Raphael Gaschignard
Stani
Szmen
Thomas Dexter
Tontyna

Version 48

Released on 2019-07-08.

Dependencies:

CairoSVG 2.4.0+ is now needed

New features:

#891: Handle text-overflow
#878: Handle column-span
#855: Handle all the text-decoration features
#238: Don’t repeat background images when it’s not needed
#875: Handle object-fit and object-position
#870: Handle bookmark-state

Bug fixes:

#686: Fix column balance when children are not inline
#885: Actually use the content box to resolve flex items percentages
#867: Fix rendering of KaTeX output, including (1) set row baseline of tables when no cells are baseline-aligned, (2) set baseline for inline tables, (3) don’t align lines larger than their parents, (4) force CairoSVG to respect image size defined by CSS.
#873: Set a minimum height for empty list elements with outside marker
#811: Don’t use translations to align flex items
#851, #860: Don’t cut pages when content overflows a very little bit
#862: Don’t crash when using UTC dates in metadata

Documentation:

#854: Add a “Tips & Tricks” section

Contributors:

Gabriel Corona
Guillaume Ayoub
Manuel Barkhau
Nathan de Maestri
Lucie Anglade
theopeek

Version 47

Released on 2019-04-12.

New features:

#843: Handle CSS variables
#846: Handle :nth() page selector
#847: Allow users to use a custom SSL context for HTTP requests

Bug fixes:

#797: Fix underlined justified text
#836: Fix crash when flex items are replaced boxes
#835: Fix margin-break: auto

Version 46

Released on 2019-03-20.

New features:

#771: Handle box-decoration-break
#115: Handle margin-break
#821: Continuous integration includes tests on Windows

Bug fixes:

#765, #754, #800: Fix many crashes related to the flex layout
#783: Fix a couple of crashes with strange texts
#827: Named strings and counters are case-sensitive
#823: Shrink min/max-height/width according to box-sizing
#728, #171: Don’t crash when fixed boxes are nested
#610, #828: Don’t crash when preformatted text lines end with a space
#808, #387: Fix position of some images
#813: Don’t crash when long preformatted text lines end with \n

Documentation:

#815: Add documentation about custom url_fetcher

Version 45

Released on 2019-02-20.

WeasyPrint now has a code of conduct.

A new website has been launched, with beautiful and useful graphs about speed and memory use across versions: check WeasyPerf.

Dependencies:

Python 3.5+ is now needed, Python 3.4 is not supported anymore

Bug fixes:

#798: Prevent endless loop and index out of range in pagination
#767: Add a --quiet CLI parameter
#784: Fix library loading on Alpine
#791: Use path2url in tests for Windows
#789: Add LICENSE file to distributed sources
#788: Fix pending references
#780: Don’t draw patterns for empty page backgrounds
#774: Don’t crash when links include quotes
#637: Fix a problem with justified text
#763: Launch tests with Python 3.7
#704: Fix a corner case with tables
#804: Don’t logger handlers defined before importing WeasyPrint
#109, #748: Don’t include punctuation for hyphenation
#770: Don’t crash when people use uppercase words from old-fashioned Microsoft fonts in tables, especially when there’s an 5th column
Use a separate logger to report the rendering process
Add a --debug CLI parameter and set debug level for unknown prefixed CSS properties
Define minimal versions of Python and setuptools in setup.cfg

Documentation:

#796: Fix a small typo in the tutorial
#792: Document no alignment character support
#773: Fix phrasing in Hacking section
#402: Add a paragraph about fontconfig error
#764: Fix list of dependencies for Alpine
Fix API documentation of HTML and CSS classes

Version 44

Released on 2018-12-29.

Bug fixes:

#742: Don’t crash during PDF generation when locale uses commas as decimal separator
#746: Close file when reading VERSION
Improve speed and memory usage for long texts.

Documentation:

#733: Small documentation fixes
#735: Fix broken links in NEWS.rst

Version 43

Released on 2018-11-09.

Bug fixes:

#726: Make empty strings clear previous values of named strings
#729: Include tools in packaging

This version also includes the changes from unstable rc1 and rc2 versions listed below.

Version 43rc2

Released on 2018-11-02.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Bug fixes:

#706: Fix text-indent at the beginning of a page
#687: Allow query strings in file:// URIs
#720: Optimize minimum size calculation of long inline elements
#717: Display <details> tags as blocks
#691: Don’t recalculate max content widths when distributing extra space for tables
#722: Fix bookmarks and strings set on images
#723: Warn users when string() is not used in page margin

Version 43rc1

Released on 2018-10-15.

This version is experimental, don’t use it in production. If you find bugs, please report them!

Dependencies:

Python 3.4+ is now needed, Python 2.x is not supported anymore
Cairo 1.15.4+ is now needed, but 1.10+ should work with missing features (such as links, outlines and metadata)
Pdfrw is not needed anymore

New features:

Beautiful website
#579: Initial support of flexbox
#592: Support @font-face on Windows
#306: Add a timeout parameter to the URL fetcher functions
#594: Split tests using modern pytest features
#599: Make tests pass on Windows
#604: Handle target counters and target texts
#631: Enable counter-increment and counter-reset in page context
#622: Allow pathlib.Path objects for HTML, CSS and Attachment classes
#674: Add extensive installation instructions for Windows

Bug fixes:

#558: Fix attachments
#565, #596, #539: Fix many PDF rendering, printing and compatibility problems
#614: Avoid crashes and endless loops caused by a Pango bug
#662: Fix warnings and errors when generating documentation
#666, #685: Fix many table layout rendering problems
#680: Don’t crash when there’s no font available
#662: Fix support of some align values in tables

Version 0.42.3

Released on 2018-03-27.

Bug fixes:

#583: Fix floating-point number error to fix floating box layout
#586: Don’t optimize resume_at when splitting lines with trailing spaces
#582: Fix table layout with no overflow
#580: Fix inline box breaking function
#576: Split replaced_min_content_width and replaced_max_content_width
#574: Respect text direction and don’t translate rtl columns twice
#569: Get only first line’s width of inline children to get linebox width

Version 0.42.2

Released on 2018-02-04.

Bug fixes:

#560: Fix a couple of crashes and endless loops when breaking lines.

Version 0.42.1

Released on 2018-02-01.

Bug fixes:

#566: Don’t crash when using @font-config.
#567: Fix text-indent with text-align: justify.
#465: Fix string(*, start).
#562: Handle named pages with pseudo-class.
#507: Fix running headers.
#557: Avoid infinite loops in inline_line_width.
#555: Fix margins, borders and padding in column layouts.

Version 0.42

Released on 2017-12-26.

WeasyPrint is not tested with (end-of-life) Python 3.3 anymore.

This release is probably the last version of the 0.x series.

Next version may include big changes:

end of Python 2.7 support,
initial support of bidirectional text,
initial support of flexbox,
improvements for speed and memory usage.

New features:

#532: Support relative file URIs when using CLI.

Bug fixes:

#553: Fix slow performance for pre-formatted boxes with a lot of children.
#409: Don’t crash when rendering some tables.
#39: Fix rendering of floats in inlines.
#301: Split lines carefully.
#530: Fix root when frozen with Pyinstaller.
#534: Handle SVGs containing images embedded as data URIs.
#360: Fix border-radius rendering problem with some PDF readers.
#525: Fix pipenv support.
#227: Smartly handle replaced boxes with percentage width in auto-width parents.
#520: Don’t ignore CSS @page rules that are imported by an @import rule.

Version 0.41

Released on 2017-10-05.

WeasyPrint now depends on pdfrw >= 0.4.

New features:

#471: Support page marks and bleed.

Bug fixes:

#513: Don’t crash on unsupported image-resolution values.
#506: Fix @font-face use with write_* methods.
#500: Improve readability of _select_source function.
#498: Use CSS prefixes as recommended by the CSSWG.
#441: Fix rendering problems and crashes when using @font-face.
bb3a4db: Try to break pages after a block before trying to break inside it.
1d1654c: Fix and test corner cases about named pages.

Documentation:

#508: Add missing libpangocairo dependency for Debian and Ubuntu.
a7b17fb: Add documentation on logged rendering steps.

Version 0.40

Released on 2017-08-17.

WeasyPrint now depends on cssselect2 instead of cssselect and lxml.

New features:

#57: Named pages.
Unprefix properties, see #498.
Add a “verbose” option logging the document generation steps.

Bug fixes:

#483: Fix slow performance with long pre-formatted texts.
#70: Improve speed and memory usage for long documents.
#487: Don’t crash on local() fonts with a space and no quotes.

Version 0.39

Released on 2017-06-24.

Bug fixes:

Fix the use of WeasyPrint’s URL fetcher with CairoSVG.

Version 0.38

Released on 2017-06-16.

Bug fixes:

#477: Don’t crash on font-face’s src attributes with local functions.

Version 0.37

Released on 2017-06-15.

WeasyPrint now depends on tinycss2 instead of tinycss.

New features:

#437: Support local links in generated PDFs.

Bug fixes:

#412: Use a NullHandler log handler when WeasyPrint is used as a library.
#417, #472: Don’t crash on some line breaks.
#327: Don’t crash with replaced elements with height set in percentages.
#467: Remove incorrect line breaks.
#446: Let the logging module do the string interpolation.

Version 0.36

Released on 2017-02-25.

New features:

#407: Handle ::first-letter.
#423: Warn user about broken cairo versions.

Bug fixes:

#411: Typos fixed in command-line help.

Version 0.35

Released on 2017-02-25.

Bug fixes:

#410: Fix AssertionError in split_text_box.

Version 0.34

Released on 2016-12-21.

Bug fixes:

#398: Honor the presentational_hints option for PDFs.
#399: Avoid CairoSVG-2.0.0rc* on Python 2.
#396: Correctly close files open by mkstemp.
#403: Cast the number of columns into int.
Fix multi-page multi-columns and add related tests.

Version 0.33

Released on 2016-11-28.

New features:

#393: Add tests on MacOS.
#370: Enable @font-face on MacOS.

Bug fixes:

#389: Always update resume_at when splitting lines.
#394: Don’t build universal wheels.
#388: Fix logic when finishing block formatting context.

Version 0.32

Released on 2016-11-17.

New features:

#28: Support @font-face on Linux.
Support CSS fonts level 3 almost entirely, including OpenType features.
#253: Support presentational hints (optional).
Support break-after, break-before and break-inside for pages and columns.
#384: Major performance boost.

Bux fixes:

#368: Respect white-space for shrink-to-fit.
#382: Fix the preferred width for column groups.
Handle relative boxes in column-layout boxes.

Documentation:

Add more and more documentation about Windows installation.
#355: Add fonts requirements for tests.

Version 0.31

Released on 2016-08-28.

New features:

#124: Add MIME sniffing for images.
#60: CSS Multi-column Layout.
#197: Add hyphens at line breaks activated by a soft hyphen.

Bux fixes:

#132: Fix Python 3 compatibility on Windows.

Documentation:

#329: Add documentation about installation on Windows.

Version 0.30

Released on 2016-07-18.

WeasyPrint now depends on html5lib-0.999999999.

Bux fixes:

Fix Acid2
#325: Cutting lines is broken in page margin boxes.
#334: Newest html5lib 0.999999999 breaks rendering.

Version 0.29

Released on 2016-06-17.

Bug fixes:

#263: Don’t crash with floats with percents in positions.
#323: Fix CairoSVG 2.0 pre-release dependency in Python 2.x.

Version 0.28

Released on 2016-05-16.

Bug fixes:

#189: white-space: nowrap still wraps on hyphens
#305: Fix crashes on some tables
Don’t crash when transform matrix isn’t invertible
Don’t crash when rendering ratio-only SVG images
Fix margins and borders on some tables

Version 0.27

Released on 2016-04-08.

New features:

#295: Support the ‘rem’ unit.
#299: Enhance the support of SVG images.

Bug fixes:

#307: Fix the layout of cells larger than their tables.

Documentation:

The website is now on GitHub Pages, the documentation is on Read the Docs.
#297: Rewrite the CSS chapter of the documentation.

Version 0.26

Released on 2016-01-29.

New features:

Support the empty-cells attribute.
Respect table, column and cell widths.

Bug fixes:

#172: Unable to set table column width on tables td’s.
#151: Table background colour bleeds beyond table cell boundaries.
#260: TypeError: unsupported operand type(s) for +: ‘float’ and ‘str’.
#288: Unwanted line-breaks in bold text.
#286: AttributeError: ‘Namespace’ object has no attribute ‘attachments’.

Version 0.25

Released on 2015-12-17.

New features:

Support the ‘q’ unit.

Bug fixes:

#285: Fix a crash happening when splitting lines.
#284: Escape parenthesis in PDF links.
#280: Replace utf8 with utf-8 for gettext/django compatibility.
#269: Add support for use when frozen.
#250: Don’t crash when attachments are not available.

Version 0.24

Released on 2015-08-04.

New features:

#174: Basic support for Named strings.

Bug fixes:

#207: Draw rounded corners on replaced boxes.
#224: Rely on the font size for rounding bug workaround.
#31: Honor the vertical-align property in fixed-height cells.
#202: Remove unreachable area/border at bottom of page.
#225: Don’t allow unknown units during line-height validation.
Fix some wrong conflict resolutions for table borders with inset and outset styles.

Version 0.23

Released on 2014-09-16.

Bug fixes:

#196: Use the default image sizing algorithm for images’s preferred size.
#194: Try more library aliases with dlopen().
#201: Consider page-break-after-avoid when pushing floats to the next page.
#217: Avoid a crash on zero-sized background images.

Release process:

Start testing on Python 3.4 on Travis-CI.

Version 0.22

Released on 2014-05-05.

New features:

#86: Support gzip and deflate encoding in HTTP responses
#177: Support for PDF attachments.

Bug fixes:

#169: Fix a crash on percentage-width columns in an auto-width table.
#168: Make <fieldset> a block in the user-agent stylesheet.
#175: Fix some dlopen() library loading issues on OS X.
#183: Break to the next page before a float that would overflow the page. (It might still overflow if it’s bigger than the page.)
#188: Require a recent enough version of Pyphen

Release process:

Drop Python 3.1 support.
Set up [Travis CI](https://travis-ci.org/) to automatically test all pushes and pull requests.
Start testing on Python 3.4 locally. (Travis does not support 3.4 yet.)

Version 0.21

Released on 2014-01-11.

New features:

Add the overflow-wrap property, allowing line breaks inside otherwise-unbreakable words. Thanks Frédérick Deslandes!
Add the image-resolution property, allowing images to be sized proportionally to their intrinsic size at a resolution other than 96 image pixels per CSS in (ie. one image pixel per CSS px)

Bug fixes:

#145: Fix parsing HTML from an HTTP URL on Python 3.x
#40: Use more general hyphenation dictionaries for specific document languages. (E.g. use hyph_fr.dic for lang="fr_FR".)
#26: Fix min-width and max-width on floats.
#100: Fix a crash on trailing whitespace with font-size: 0
#82: Borders on tables with border-collapse: collapse were sometimes drawn at an incorrect position.
#30: Fix positioning of images with position: absolute.
#118: Fix a crash when using position: absolute inside a position: relative element.
Fix visibility: collapse to behave like visibility: hidden on elements other than table rows and table columns.
#147 and #153: Fix dependencies to require lxml 3.0 or a more recent version. Thanks gizmonerd and Thomas Grainger!
#152: Fix a crash on percentage-sized table cells in auto-sized tables. Thanks Johannes Duschl!

Version 0.20.2

Released on 2013-12-18.

Fix #146: don’t crash when drawing really small boxes with dotted/dashed borders

Version 0.20.1

Released on 2013-12-16.

Depend on html5lib >= 0.99 instead of 1.0b3 to fix pip 1.4 support.
Fix #74: don’t crash on space followed by dot at line break.
Fix #78: nicer colors for border-style: ridge/groove/inset/outset.

Version 0.20

Released on 2013-12-14.

Add support for border-radius.
Feature #77: Add PDF metadata from HTML.
Feature #12: Use html5lib.
Tables: handle percentages for column groups, columns and cells, and values for row height.
Bug fixes:
- Fix #84: don’t crash when stylesheets are not available.
- Fix #101: use page ids instead of page numbers in PDF bookmarks.
- Use logger.warning instead of deprecated logger.warn.
- Add ‘font-stretch’ in the ‘font’ shorthand.

Version 0.19.2

Released on 2013-06-18.

Bug fix release:

Fix #88: text-decoration: overline not being drawn above the text
Bug fix: Actually draw multiple lines when multiple values are given to text-decoration.
Use the font metrics for text decoration positioning.
Bug fix: Don’t clip the border with overflow: hidden.
Fix #99: Regression: JPEG images not loading with cairo 1.8.x.

Version 0.19.1

Released on 2013-04-30.

Bug fix release:

Fix incorrect intrinsic width calculation leading to unnecessary line breaks in floats, tables, etc.
Tweak border painting to look better
Fix unnecessary page break before big tables.
Fix table row overflowing at the bottom of the page when there are margins above the table.
Fix position: fixed to actually repeat on every page.
Fix #76: repeat <thead> and <tfoot> elements on every page, even with table border collapsing.

Version 0.19

Released on 2013-04-18.

Add support for linear-gradient() and radial-gradient in background images.
Add support for the ex and ch length units. (1ex is based on the font instead of being always 0.5em as before.)
Add experimental support for Level 4 hyphenation properties.
Drop support for CFFI < 0.6 and cairocffi < 0.4.
Many bug fixes, including:

Fix #54: min/max-width/height on block-level images.

Fix #71: Crash when parsing nested functional notation.

Version 0.18

Released on 2013-03-30.

Add support for Level 3 backgrounds, including multiple background layers per element/box.
Forward-compatibility with (future releases of) cairocffi 0.4+ and CFFI 0.6+.
Bug fixes:
- Avoid some unnecessary line breaks for elements sized based on their content (aka. “shrink-to-fit”) such as floats and page headers.
- Allow page breaks between empty blocks.
- Fix #66: Resolve images’ auto width from non-auto height and intrinsic ratio.
- Fix #21: The data: URL scheme is case-insensitive.
- Fix #53: Crash when backtracking for break-before/after: avoid.

Version 0.17.1

Released on 2013-03-18.

Bug fixes:

Fix #41: GObject initialization when GDK-PixBuf is not installed.
Fix #42: absolute URLs without a base URL (ie. document parsed from a string.)
Fix some whitespace collapsing bugs.
Fix absolutely-positioned elements inside inline elements.
Fix URL escaping of image references from CSS.
Fix #49: Division by 0 on dashed or dotted border smaller than one dot/dash.
Fix #44: bad interaction of page-break-before/after: avoid and floats.

Version 0.17

Released on 2013-02-27.

Added text hyphenation with the -weasy-hyphens property.
When a document includes JPEG images, embed them as JPEG in the PDF output. This often results in smaller PDF file size compared to the default deflate compression.
Switched to using CFFI instead of PyGTK or PyGObject-introspection.
Layout bug fixes:
- Correctly trim whitespace at the end of lines.
- Fix some cases with floats within inline content.

Version 0.16

Released on 2012-12-13.

Add the zoom parameter to HTML.write_pdf and Document.write_pdf() <weasyprint.document.Document.write_pdf>
Fix compatibility with old (and buggy) pycairo versions. WeasyPrint is now tested on 1.8.8 in addition to the latest.
Fix layout bugs related to line trailing spaces.

Version 0.15

Released on 2012-10-09.

Add a low-level API that enables painting pages individually on any cairo surface.
Backward-incompatible change: remove the HTML.get_png_pages method. The new low-level API covers this functionality and more.
Add support for the font-stretch property.
Add support for @page:blank to select blank pages.
New Sphinx-based and improved docs
Bug fixes:
- Importing Pango in some PyGTK installations.
- Layout of inline-blocks with vertical-align: top or bottom.
- Do not repeat a block’s margin-top or padding-top after a page break.
- Performance problem with large tables split across many pages.
- Anchors and hyperlinks areas now follow CSS transforms. Since PDF links have to be axis-aligned rectangles, the bounding box is used. This may be larger than expected with rotations that are not a multiple of 90 degrees.

Version 0.14

Released on 2012-08-03.

Add a public API to choose media type used for @media. (It still defaults to print). Thanks Chung Lu!
Add --base-url and --resolution to the command-line API, making it as complete as the Python one.
Add support for the <base href="..."> element in HTML.
Add support for CSS outlines
Switch to gdk-pixbuf instead of Pystacia for loading raster images.
Bug fixes:
- Handling of filenames and URLs on Windows
- Unicode filenames with older version of py2cairo
- base_url now behaves as expected when set to a directory name.
- Make some tests more robust

Version 0.13

Released on 2012-07-23.

Add support for PyGTK, as an alternative to PyGObject + introspection. This should make WeasyPrint easier to run on platforms that not not have packages for PyGObject 3.x yet.
Bug fix: crash in PDF outlines for some malformed HTML documents

Version 0.12

Released on 2012-07-19.

Add support for collapsed borders on tables. This is currently incompatible with repeating header and footer row groups on each page: headers and footers are treated as normal row groups on table with border-collapse: collapse.
Add url_fetcher to the public API. This enables users to hook into WeasyPrint for fetching linked stylesheets or images, eg. to generate them on the fly without going through the network. This enables the creation of Flask-WeasyPrint.

Version 0.11

Released on 2012-07-04.

Add support for floats and clear. Together with various bug fixes, this enables WeasyPrint to pass the Acid2 test! Acid2 is now part of our automated test suite.
Add support for the width, min-width, max-width, height, min-height and max-height properties in @page. The size property is now the size of the page’s containing block.
Switch the Variable Dimension rules to the new proposal. The previous implementation was broken in many cases.
The image-rendering, transform, transform-origin and size properties are now unprefixed. The prefixed form (eg. -weasy-size) is ignored but gives a specific warning.

Version 0.10

Released on 2012-06-25.

Add get_png_pages() to the public API. It returns each page as a separate PNG image.
Add a resolution parameter for PNG.
Add WeasyPrint Navigator, a web application that shows WeasyPrint’s output with clickable links. Yes, that’s a browser in your browser. Start it with python -m weasyprint.navigator
Add support for vertical-align: top and vertical-align: bottom
Add support for page-break-before: avoid and page-break-after: avoid
Bug fixes

Version 0.9

Released on 2012-06-04.

Relative, absolute and fixed positioning
Proper painting order (z-index)
In PDF: support for internal and external hyperlinks as well as bookmarks.
Added the tree parameter to the HTML class: accepts a parsed lxml object.
Bug fixes, including many crashes.

Bookmarks can be controlled by the -weasy-bookmark-level and -weasy-bookmark-label properties, as described in CSS Generated Content for Paged Media Module.

The default UA stylesheet sets a matching bookmark level on all <h1> to <h6> elements.

Version 0.8

Released on 2012-05-07.

Switch from cssutils to tinycss as the CSS parser.
Switch to the new cssselect, almost all level 3 selectors are supported now.
Support for inline blocks and inline tables
Automatic table layout (column widths)
Support for the min-width, max-width, min-height and max-height properties, except on table-related and page-related boxes.
Speed improvements on big stylesheets / small documents thanks to tinycss.
Many bug fixes

Version 0.7.1

Released on 2012-03-21.

Change the license from AGPL to BSD.

Version 0.7

Released on 2012-03-21.

Support page breaks between table rows
Support for the orphans and widows properties.
Support for page-break-inside: avoid
Bug fixes

Only avoiding page breaks before/after an element is still missing.

Version 0.6.1

Released on 2012-03-01.

Fix a packaging bug. (Remove use_2to3 in setup.py. We use the same codebase for Python 2 and 3.)

Version 0.6

Released on 2012-02-29.

Backward incompatible: completely change the Python API. See the documentation: https://weasyprint.readthedocs.io/en/latest/tutorial.html#as-a-python-library
Backward incompatible: Proper margin collapsing. This changes how blocks are rendered: adjoining margins “collapse” (their maximum is used) instead of accumulating.
Support images in embed or object elements.
Switch to pystacia instead of PIL for raster images
Add compatibility with CPython 2.6 and 3.2. (Previously only 2.7 was supported)
Many bug fixes

Version 0.5

Released on 2012-02-08.

Support for the overflow and clip properties.
Support for the opacity property from CSS3 Colors.
Support for CSS 2D Transforms. These are prefixed, so you need to use -weasy-transform and -weasy-transform-origin.

Version 0.4

Released on 2012-02-07.

Support text-align: justify, word-spacing and letter-spacing.
Partial support for CSS3 Paged Media: page size and margin boxes with page-based counters.
All CSS 2.1 border styles
Fix SVG images with non-pixel units. Requires CairoSVG 0.3
Support for page-break-before and page-break-after, except for the value avoid.
Support for the background-clip, background-origin and background-size from CSS3 (but still with a single background per element)
Support for the image-rendering from SVG. This one is prefixed, use -weasy-image-rendering. It only has an effect on PNG output.

Version 0.3.1

Released on 2011-12-14.

Compatibility with CairoSVG 0.1.2

Version 0.3

Released on 2011-12-13.

Backward-incompatible change: the ‘size’ property is now prefixed (since it is in an experimental specification). Use ‘-weasy-size’ instead.
cssutils 0.9.8 or higher is now required.
Support SVG images with CairoSVG
Support generated content: the :before and :after pseudo-elements, the content, quotes and counter-* properties.
Support ordered lists: all CSS 2.1 values of the list-style-type property.
New user-agent stylesheet with HTML 5 elements and automatic quotes for many languages. Thanks Peter Moulder!
Disable cssutils validation warnings, they are redundant with WeasyPrint’s.
Add --version to the command-line script.
Various bug fixes

Version 0.2

Released on 2011-11-25.

Support for tables.
Support the box-sizing property from CSS 3 Basic User Interface
Support all values of vertical-align except top and bottom. They are interpreted as text-top and text-bottom.
Minor bug fixes

Tables have some limitations: Only the fixed layout and separate border model are supported. There are also no page break inside tables so a table higher than a page will overflow.

Version 0.1

Released on 2011-10-28.

First packaged release. Supports “simple” CSS 2.1 pages: there is no support for floats, tables, or absolute positioning. Other than that most of CSS 2.1 is supported, as well as CSS 3 Colors and Selectors.