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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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ISO 24517 (PDF/E)

ISO 24517 defines a file format for the exchange of engineering documents based on the PDF format. It is a multi-part standard with subsequent parts expected to address future workflow and data requirements. PDF/E improves document exchange, collaboration, and print accuracy within …

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ISO 32000-1 (PDF 1.7)

ISO 32000-1 is the first ISO specification for PDF. The document is an ISO formalization of Adobe’s own PDF Reference 1.7, and is technically identical to the Adobe document. On submission of PDF 1.7 to ISO for standardization in 2007, …

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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 signer’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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ISO 19005 (PDF/A)

The primary purpose of ISO 19005 is to define a file format based on PDF, known as PDF/A, which provides a mechanism for representing electronic documents in a manner that preserves their static visual appearance over time, independent of the …

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The Camelot Project

Written by Adobe Systems co-founder Dr. John Warnock in 1990, the Camelot Project describes the vision that became PDF. Dr. Warnock created this PDF in 1995. It conforms with PDF 1.2, which explains the lack of accessibility features (introduced with …

The Camelot Project


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