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 TET 5.0 Beta 1 now available


The first version of PDFlib TET (Text and Image Extraction Toolkit) has been published in 2002. Since the initial release TET solved the PDF content extraction problems of thousands of customers around the world.


With the next major release TET 5 we will further improve our solid extraction tool. There are many significant functional enhancements, mainly in the following areas:


image extraction

color retrieval

TETML content

Contact us to obtain an evaluation key and download a free package.

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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. 


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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.