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The PDF Association publishes a variety of documents and other resources to help developers, product managers, and others interested in leveraging PDF to meet their business and organizational objectives.

Most publications listed on pdfa.org are developed through our publications process, and are freely available to members and non-members alike.

PDF Association members may access drafts of current and upcoming ISO standards via the members-only intranet.

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PDF in Manufacturing

3D PDF

Today, PDF is at the heart of manufacturing and engineering communications. PDF technology supports manufacturing worldwide, conveying ideas, plans, communications, contracts, specifications, contracts… and of course, 2D and 3D drawings …

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Technical Note 0010: Clarifications of ISO 19005, parts 1-3 for developers of PDF/A creators and validators

TechNote 0010 offers ISO TC 171 SC 2 WG 5-reviewed and industry-supported clarifications of ISO 19005, parts 1-3 for developers of PDF/A creators and validators.

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PDF/A-1 Technical Notes – Origins

Prior to development of the Isartor Test Suite, the PDF/A Competence Center Technical Working Group (TWG) led the way in development of best practices and other tools to support ISO standards for mainstream PDF technology. Between April, 2007 and March …

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Technical Note 0009: XMP Extension Schemas in PDF/A-1

This TechNote explains how to construct an XMP extension schema for PDF/A-1. It complements TechNote 0008: Predefined XMP Properties in PDF/A-1. Both TechNotes should be used in combination as follows: If metadata requirements for PDF/A-1 documents arise, first consult the …

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Technical Note 0008 – Predefined XMP Properties in PDF/A-1

This TechNote lists all XMP schemas and properties which are allowed in PDF/A-1. Most importantly, it covers the predefined XMP schemas for use in PDF/A-1. In addition to providing a convenient summary, it also contains notes and recommendations regarding the …

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Technical Note 0003 – Metadata in PDF/A-1

PDF/A-1 imposes certain requirements and restrictions on document metadata in a compliant PDF/A-1 file where certain information is required to be encoded as XMP metadata, while corresponding entries in the document information dictionary for a document may be present but …

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Technical Note 0001 – PDF/A-1 and Namespaces

A PDF/A-1 file must be identified as such by the presence of a certain entry in its XMP document metadata. In order to be able to retrieve this entry reliably, it is essential that all syntactical requirements for storing metadata …

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Technical Note 0006 – Digital Signatures in PDF/A-1

Digital signatures are primarily used to check the integrity of the signed part of the document. They also can be used to authenticate the signerÂ’s identity and determine the time of signing. The concept of digital signatures was introduced in …

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Technical Note 0002 – Color in PDF/A-1

The PDF/A-1 requirements related to color handling may be confusing to users and developers who are not familiar with color management concepts and ICC profiles. This TechNote describes the affected objects in PDF, details the requirements of PDF/A-1 with respect …

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