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.pdf (PDF for Long-Term Preservation (PDF/A))
.pdfISO 19005-1 / 19005-4 • Maintained by International Organization for Standardization (ISO)

PDF for Long-Term Preservation (PDF/A)

An ISO-standardized subset of PDF designed specifically for digital preservation and electronic document archiving, guaranteeing exact rendering decades into the future.

Format Security & Threat Profile

Macro / Script Execution RiskNone
Native Cryptographic EncryptionNot Supported (Standard forbids)
Metadata Leakage Profile:

Strictly defined via standard XMP metadata packets

Technical Specifications & Standards

Prohibited FeaturesJavaScript, external font linking, audio/video embeds, encryption
Mandatory Elements100% embedded fonts, device-independent color profiles (ICC)
Conformance LevelsPDF/A-1b, PDF/A-2u, PDF/A-4

Standard Enterprise Use Cases

Court record filingsPatent registriesAcademic journal archivingMedical records retention

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Adobe Acrobat Pro
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