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PDF Specification Archive

The latest PDF 2.0 standard (ISO 32000-2:2020) is now available at no cost. For additional reference, this page serves as an index of the evolution of the PDF format, and includes external links to all legacy Adobe PDF references and errata, as well as to the ISO 32000 family of standards.

PDF Version Year Reference Documents
ISO 32000-2:2020

(PDF 2.0)

2020
ISO 32000-2:2017

(PDF 2.0)

2017
ISO 32000-1:2008

(PDF 1.7)

2008
Adobe PDF 1.7 2006
Adobe PDF 1.6 2004
Adobe PDF 1.5 2003
Adobe PDF 1.4 2001
Adobe PDF 1.3 2000
Adobe PDF 1.2 1996
Adobe PDF 1.1 1996
Adobe PDF 1.0 1993

References

https://opensource.adobe.com/dc-acrobat-sdk-docs/acrobatsdk/#pdf-reference – new Adobe resource in May 2022 providing some legacy PDF reference documents only (no errata).

https://www.adobe.com/devnet/pdf/pdf_reference_archive.html – original website with all legacy Adobe documents. No longer available except via the WayBack Machine.

https://www.loc.gov/preservation/digital/formats/fdd/fdd000316.shtml

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April 11, 2023

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