Chaired by PDF Association Board member Boris Doubrov, the PDF Validation TWG was created to supervise development of veraPDF, the industry-accepted PDF/A validator.
With the bulk of veraPDF development completed in 2017, at present the PDF Validation TWG reviews problematic files and edge-cases raised by the TWG's members for consideration, providing guidance to developers supporting implementations of PDF/A and authorizes updates to the veraPDF test suite and application software.
As part of supporting development of veraPDF, the TWG developed and published Technical Note 0010, and is currently developing additional technical notes.
Membership: PDF Association members only.
The “PDF/A Elevator Pitch” gives a short introduction of PDF/A. http://youtu.be/fsBWB5DSwG4
This TechNote explains how to construct an XMP extension schema for PDF/A-1. It complements TechNote 0008: Predefined XMP Properties in …
This TechNote lists all XMP schemas and properties which are allowed in PDF/A-1. Most importantly, it covers the predefined XMP …
PDF/A-1 imposes certain requirements and restrictions on document metadata in a compliant PDF/A-1 file where certain information is required to …
A PDF/A-1 file must be identified as such by the presence of a certain entry in its XMP document metadata. …
Digital signatures are primarily used to check the integrity of the signed part of the document. They also can be …
Some tips and use cases for using PDF portfolios to package many different files in a single PDF.
We’re pleased to announce an exciting new addition to our website, the iText 7 Demo Lab. Our new and improved Demo …
The Signal, a Library of Congress blog, has a new post about archiving with our favorite format by the Library …
14th February 2020… It’s a date which has been carved in the minds of our developers here at iText for …
callas software will celebrate the diversity of PDF applications and solutions by organizing interesting presentations given by leading companies. Come …
Under the umbrella of this year’s PDF Days Europe in Berlin, axaio will be hosting a MadeToTag workshop day during …
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