v0.6.0

What's Changed

• Correct word break and space addition in case of caracter composition by @kermitt2 in #121
• Apple macOS ARM support by @lfoppiano in #154
• add github actions by @lfoppiano in #169
• support for Apple arm and improve the github action build by @lfoppiano in #171
• Fix IWord::colortoString(): Round instead of truncate by @th-we in #158
• Fix #144 by @SchrodingersMind in #151
• Update drawChar() in OutputDev interface to xpdf-4.05 by @flydutch in #172
• Update xpdf 4.05 by @flydutch in #176
• Update of ICU libraries for pdfalto by @AaronNGray in #177
• Update external libraries by @lfoppiano in #180 #181 #193 #194
• Modified nearly all sprintf's to snprintf's in src/. by @AaronNGray in #182
• Add build for external libraries by @lfoppiano in #184
• MacOS/x64 library builds. by @AaronNGray in #188
• Collect and aggregate pdfalto binaries by @lfoppiano in #195
• MacOS/X64 fontconfig path support by @AaronNGray in #196
• Extend backward compatibility up to ubuntu 20.04 (or glibc 3.4.32) by @lfoppiano in #197
• Update ci-build-libs.yml - update to libpng-1.6.47 by @AaronNGray in #198
• Fix problem with macos build and cmake version by @lfoppiano in #199
• Remove casting between TextWord and TextRawWord by @flydutch in #202
• removed forced cast from TextRawWord to TextWord by @flydutch in #203
• Update external libraries and make the build automatic and reproducible by @lfoppiano in #178
• Add library version environment variables to ci-build-libs.yml by @AaronNGray in #205
• Feature/update xpdf 4.05 by @flydutch in #206
• Enable scanning by @lfoppiano in #207
• Fix regression from #182 by @flydutch in #208
• Fix potential memory leaks on XPdf branch by @flydutch in #210
• Feature/update xpdf 4.05 fix regression by @lfoppiano in #212
• Improve line number recognition by @lfoppiano in #214
• Update parameters for dumping / skipping images by @lfoppiano in #219
• Update to xpdf 4.05 by @lfoppiano in #173
• Update documentation by @lfoppiano in #221
• chore: add libfontconfig by @lfoppiano in #222
• Add libfontconfig-dev to install_deps.sh by @th-we in #175
• Automate release by @lfoppiano in #223

New Contributors

• @th-we made their first contribution in #158
• @SchrodingersMind made their first contribution in #151
• @AaronNGray made their first contribution in #177
• @flydutch made their first contribution in various PRs and issues

Full Changelog: 0.4...v0.6.0

Version 0.4

New in version 0.4 (apart various bug fixes):

• support for xpdf language support package for language-specific fonts like Arabic, Chinese-simplified, Japanese, etc. they are pre-installed locally and portable

• refined line number detection and fixing a bug which could result in random missing numbers in the ALTO output

• update to xpdf-4.03

• fix issue with character spacing due to invalid rotation condition

• update dependencies and dependency install script

Version 0.3

New in version 0.3:

• line number detection: line numbers (typically added for review in manuscripts/preprints) are specifically identified and not anymore mixed with the rest of text content, they will be grouped in a separate block or, optionally, not outputted in the ALTO file (noLineNumbers option)

• removal of -blocks option, the block information are always returned for ensuring ALTO validation (<TextBlock> element)

• bug fixing on reading order

• fix possible incorrect XMax and YMax values at 0 on block coordinates having only one line

Version 0.2

New in version 0.2:

• support Unicode composition of characters
• generalize reading order to all blocks (it was limited to the blocks of the first page)
• use subscript/superscript text font style attribute
• use SVG as a format for vectorial images
• propagate unsolved character Unicode value (free Unicode range for embedded fonts) as encoded special character in ALTO (so-called "placeholder" approach)
• generate metadata information in a separate XML file (as ALTO schema does not support that)
• use the latest version of xpdf, version 4.00
• add cmake
• ALTO output is replacing custom Xerox XML format

Note: this released version was used for Grobid release 0.5.6