PDF/A

Technology & Computing abbreviation · File Format

PDF/A
Stands forPortable Document Format for Archiving
CategoriesTechnology & Computing

PDF/A stands for Portable Document Format for Archiving, a file format abbreviation.

ISO-standardized version of PDF designed for long-term preservation, requiring embedded fonts and self-contained content while forbidding encryption, JavaScript, audio, video and external links. Courts, governments and archives often require it.

Example: The court's e-filing system only accepts briefs saved as PDF/A.

Usage notes

The first part, ISO 19005-1, appeared in 2005; later parts include PDF/A-2 (2011), PDF/A-3 (2012), which allows embedded attachments and is used for e-invoices such as Germany's ZUGFeRD, and PDF/A-4 (2020). Conformance levels such as "b" (basic visual appearance) and "a" (accessible, tagged structure) indicate how strict a file is. Validation tools such as veraPDF check compliance.

More file format abbreviations

  • ODP – OpenDocument Presentation
  • ODS – OpenDocument Spreadsheet
  • ODT – OpenDocument Text
  • OGG – Ogg (container format)
  • OTF – OpenType Font
  • PDF – Portable Document Format
  • PKG – Package installer file
  • PNG – Portable Network Graphics
  • PPT – Microsoft PowerPoint presentation (legacy binary format)
  • PPTX – Office Open XML presentation
  • PS – PostScript
  • PSD – Photoshop Document

See all 125 file format abbreviations →