PDFlib Releases

Released: Feb 8, 2019

Updates in 9.2.0


  • New language binding for .NET Core.
  • Updates for most language bindings.
  • Clarifications of structure element nesting rules in anticipation of PDF 2.0.
  • PDF/UA-1 implementation aligned to latest recommendations and validators.
  • Improved import of Tagged PDF pages.
  • New options for modifying the color of raster images.
  • Improved color controls for non-sRGB colors in SVG.
  • PDF/X-4/5 convenience features for handling conflicts with identical CMYK profiles.
  • Identify several non-standard JPEG...

Released: Feb 9, 2018

Updates in 9.1.2


  • Tagged PDF and PDF/UA improvements.
  • SVG support for automatically rotating glyphs in vertical text.
  • Identify certain kinds of unsupported input data, e.g. OpenType font variations.
  • Improved handling of damaged and non-standard JPEG flavors as well as invalid XMP.
  • Improved performance of SVG processing.
  • Updated language bindings and build support, e.g. PHP 7.2, Ruby 2.5, Java 9.
  • PDF/VT encapsulation for imported PDF pages.
  • Accelerated text output, especially on IBM zSeries.
  • Updated...

Released: Jul 28, 2017

Updates in 9.1.1


  • Improved PDF/VT encapsulation of Form XObjects
    • The GTS_Encapsulated flag is now assigned to almost all Form XObjects created for imported PDF pages and SVG graphics with the "templateoptions" option; a transparency group is attached to the Form XObject only if required.
    • This new strategy facilitates in-RIP caching of Form XObjects which can result in accelerated ripping. Before the change transparent templates and SVG graphics could incorrectly be encapsulated if users provided a...

Released: Dec 21, 2016

Updates in 9.1.0


  • Support for DeviceN and NChannel color spaces with an arbitrary number of colorants.
  • PDF/X-5n for exchange of n-colorant production files, e.g. in the packaging industry.
  • SVG color extension for ICC profiles, spot and DeviceN color as well as Gray/RGB/CMYK device color for increased usability of SVG for print production.
  • Pantone Extended Gamut Coated (XGC) spot colors and Pantone Plus 2016 update.
  • Color gradients with an arbitrary number of stop colors for flexible color blends.
  • Color...

Released: Aug 3, 2016

Updates in 9.0.7


  • Significantly improved performance of various operations:
    • Split very large documents.
    • Create Tagged PDF.
    • Import pages from Tagged PDF.
    • Retrieve bookmarks with pCOS.
  • Reduced memory requirements for various operations:
    • Create very large documents.
    • Open Tagged PDF.
    • Import pages from PDF/UA documents.
  • Added support for additional CSS properties in SVG.
  • Updated language bindings incl. support for Perl 5.24 and Ruby 2.3.
  • Reduced code and data size of the PDFlib Mini Edition (ME) for embedded...

Released: Nov 24, 2015

Updates in this release

Updates in 9.0.6

  • The PDFlib Block plugin has been updated to version 5.6. It improves the new support for Acrobat DC and fixes several user interface issues, mostly with Acrobat DC on OS X.
  • Updated language bindings incl. support for PHP 7, Perl 5.22 and Python 3.5.
  • Support for watermarks (stamped text) which can be edited in Acrobat.
  • PDF/UA-1 modifications related to the ISO 14289-1:2014 edition of the standard.
  • Several enhancements for TIFF and JPEG 2000 images, especially for handling rare...

Released: Jul 1, 2015

Updates in this release

Updates in 9.0.5

  • Performance improvements for certain situations including font or image enumeration in very large documents and import of Tagged PDF documents.
  • Enhanced support for OpenType lookup types and OpenType Collection font formats.
  • Support for proportional metrics in vertical writing mode.
  • Improved TIFF, JPEG2000, JBIG2 and SVG importing.
  • Modified PDF output to work around undesirable behavior in Acrobat.
  • Optimized PDF output for documents that are repeatedly imported using PDI...

Released: Mar 10, 2015

Updates in this release

Updates in 9.0.4

  • Enhancements for converting SVG to PDF.
  • Improved Unicode output for fonts with ambiguous Unicode values.
  • Support for round-tripping of Standard and Ideographic Variation Sequences (IVS).
  • Simplified PDF output for a small number of file attachments to work around restrictions in some PDF consumers, especially for PDF/A-3 invoice attachments according to the ZUGFeRD standard.
  • Improvements for the language bindings including support for PHP 5.6, Perl 5.20, and Ruby 2.1.

Released: Jun 10, 2014

Updates in this release

Updates in 9.0.3

  • Added support for missing OpenType font features.
  • Improvements and bug fixes in the Textflow wrapping algorithm.
  • Work around for annotation-related bug in Adobe Reader.
  • Added 84 new colors in the PANTONE PLUS Solid Coated and Uncoated spot color libraries.
  • Reduced PDI memory requirements for importing PDFs with tags or layers.
  • Improved memory performance for very large documents.
  • Font engine improvements for several Unicode-related font idiosyncrasies.
  • Support for FreeBSD 10 and...

Released: Jan 10, 2014

Updates in this release

Updates in 9.0.2

  • Enhancements for Tagged PDF and PDF/UA.
  • Support for Windows 8.1, Windows Server 2012 R2, OS X 10.9 (Mavericks) and iOS 7.
  • Performance boost for multi-threaded Java applications and PDF_begin_pattern_ext() available in all bindings.
  • ICC profile support for all image formats and improved controls for transparency groups.
  • PDF Import performance enhancements.
  • Simplified handling of fonts for form fields.
  • Additional controls for the appearance of shadow text.