Acrobat PDF/A - Portable Document Format

Name: Acrobat PDF/A - Portable Document Format

Version: 1a

Description: The Portable Document Format/ Archive is a format designed for long term preservation by Adobe Systems. PDF/A is a simplified version of PDF 1.4, with all of the features from PDF 1.4 that would impede long term preservation removed. Removed features include Javascript, Audio/Visual content, LZW compression and encryption. A major principle of PDF/A is that it is self contained and not reliant on externalities thus all font and colour information is encoded into the file. PDF/A files are larger than other types of PDF files due to the need for embedded information. PDF/A supports two levels of compliance PDF/A1-a (Accessible) and PDF/A1-b (Basic). PDF/A1-a is fully ISO 19005-1:2005 (PDF/A-1) compliant whereas PDF/A1-b is less stringent and not compliant. PDF/A1-a requires tagged PDF and Unicode whereas PDF/A1-b does not.

Deprecated: false

MIMEType: application/pdf

PUID: fmt/95

sameAs : PRONOM:

Extension: pdf

Magic: true

Container Magic: false

Binary Magic: true

Signature Priority Over:

See Also (e.g. Wikidata, Library of Congress):

Software that can read the format:

Alias: PDF/A (1)