PLOP and PLOP DS 5 available

PDFlib PLOP is a versatile tool for linearizing, optimizing, repairing, analyzing, encrypting and decrypting PDF documents.

PDFlib PLOP DS additionally offers the ability to apply digital signatures to PDF documents. PLOP DS 5 applies digital signatures to PDF documents according to the latest standards and technologies:


PAdES/CAdES signatures according to ETSI TS 102 778

Signatures enabled for Long-Term Validation (LTV)

All certificates embedded for validation without any prior configuration

Time-stamped signatures and document-level time-stamps

PDF/A, PDF/UA, PDF/X and PDF/VT conformance

Software and hardware certificates, e.g. smartcards or USB tokens

Elliptic curve and Brainpool signatures

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PDFlib 9.0.4 available


Updating to PDFlib 9.0.4 is recommended for all users of PDFlib, PDFlib+PDI and PDFlib Personalization Server 9.0.x under active support. Customers without active support may purchase a minor update to switch to PDFlib 9.0.4.

PDFlib 9.0.4 improvements:


Enhancements for converting SVG to PDF

Improved Unicode output for fonts with ambiguous Unicode values, required for reliable text extract for the generated PDF

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

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pCOS Cookbook

The PDFlib pCOS Cookbook is a collection of pCOS coding fragments for retrieving all kinds of information from PDF documents. 


German ZUGFeRD Format for Invoices

PDFlib 9 supports the PDF/A-1/2/3 standards and can be used to implement the ZUGFeRD format. 



TET 4.4 released

Maintenance version of established text and image extraction tool released.

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PDFlib Cookbook


The PDFlib Cookbook is a collection of PDFlib coding fragments for solving specific problems. The Cookbook topics help you develop solutions based on the PDFlib product family. You can browse Java code, PHP code and PDF output for all Cookbook topics, or download a package with all code samples along with auxiliary input data.