PDF/A - Standards

Standards

PDF/A-1 is based on the PDF Reference Version 1.4 from Adobe Systems Inc. (implemented in Adobe Acrobat 5 and later versions) and is defined by ISO 19005-1:2005, an ISO Standard that was published on October 1, 2005: Document Management – Electronic document file format for long term preservation – Part 1: Use of PDF 1.4 (PDF/A-1)

PDF/A-2 is based on ISO 32000-1 – PDF 1.7 and is defined by ISO 19005-2:2011, published on June 20, 2011 under the formal name Document management – Electronic document file format for long-term preservation – Part 2: Use of ISO 32000-1 (PDF/A-2). PDF/A-2 is a very recent standard and is not widely used.

PDF/A-3 is based on ISO 32000-1 – PDF 1.7 and is defined by ISO 19005-3:2012, published on October 15, 2012 under the formal name Document management -- Electronic document file format for long-term preservation -- Part 3: Use of ISO 32000-1 with support for embedded files (PDF/A-3).

ISO 19005 - Document management - Electronic document file format for long-term preservation (PDF/A)
Part Name Formal name Release date Standard Based on PDF version
Part 1 PDF/A-1 Use of PDF 1.4 (PDF/A-1) 2005 ISO 19005-1 PDF 1.4 (Adobe Systems, PDF Reference third edition, 2001)
Part 2 PDF/A-2 Use of ISO 32000-1 (PDF/A-2) 2011 ISO 19005-2 PDF 1.7 (ISO 32000-1:2008)
Part 3 PDF/A-3 Use of ISO 32000-1 with support for embedded files (PDF/A-3) 2012 ISO 19005-3 PDF 1.7 (ISO 32000-1:2008)

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