PDF Association logo

Discover pdfa.org

Key resources

Get involved

How do you find the right PDF technology vendor?
Use the Solution Agent to ask the entire PDF communuity!
The PDF Association celebrates its members’ public statements
of support
for ISO-standardized PDF technology.

Member Area

RESOURCE

ISO/TS 32004

Integrity protection in encrypted documents in PDF 2.0

ISO/TS 32004:2024 Document management — Portable Document Format — Integrity protection in encrypted documents in PDF 2.0 is a PDF 2.0 extension Technical Specification (TS) by ISO TC 171 SC 2 WG 8.

It extends PDF 2.0 to also provide integrity protection along with confidentiality. AES-CBC encryption mode used in PDF 2.0 encryption, by itself, only provides confidentiality of the content and requires other mechanisms like Message Authentication Code (MAC) to protect its integrity. This technical specification describes an extension to the PDF 2.0 Encryption to provide integrity protection in a backward-compatible way. It extends the ISO 32000-2 (PDF 2.0) specification by adding extensions to the Encrypt dictionary and trailer dictionary to provide integrity protection to the encrypted PDF document while maintaining backward compatibility.

ISO TS 32004 is now available at no cost!

As part of the PDF Association’s exclusive ISO 32000 bundle, this Technical Specification is available from the PDF Association at no cost thanks to sponsorship support provided by Adobe, Apryse and Foxit. Read the press-release.

Covers of 5 ISO standards in the ISO 32000-2 bundle.

Comments?

Technical questions about ISO/TS 32004 are most effectively addressed in the PDF Association’s official pdf-issues GitHub repo.

RESOURCE INFO


Download ISO/TS 32004 at no cost.

Buy the same document from ISO.

ISO/TS 32004 is a PDF 2.0 extension that provides integrity protection along with confidentiality for encrypted PDF 2.0 documents.

Subscribe here for the PDF Association’s periodic updates regarding new, updated, or corrected industry and ISO specifications for PDF technology.

PDF 2.0 icon

Community: PDF Digital Signature TWG

ISO Group Responsible: ISO TC171 SC2 WG8

ISO Status: Published (2024)


PDF 2.0 Extensions to PDF 2.0

WordPress Cookie Notice by Real Cookie Banner