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.
Comments?
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.
Community: PDF Digital Signature TWG
ISO Group Responsible: ISO TC171 SC2 WG8
ISO Status: Published (2024)