PDF/A and external references
PDF/A ensures reliable long-term rendering by embedding fonts, images, and color profiles, but URLs can still appear in text, hyperlinks, bookmarks, annotations, metadata, and embedded files.
Link annotations and URI Actions define clickable destinations, but PDF/A restricts certain action types to prevent external dependencies.
Guided by clear policies, comprehensive audits of both visible and hidden references help maintain authenticity, accessibility, and long-term integrity of PDF/A documents and digital collections.
PDF/A ensures reliable long-term rendering by embedding fonts, images, and color profiles, but URLs can still appear in text, hyperlinks, bookmarks, annotations, metadata, and embedded files.
Link annotations and URI Actions define clickable destinations, but PDF/A restricts certain action types to prevent external dependencies.
Guided by clear policies, comprehensive audits of both visible and hidden references help maintain authenticity, accessibility, and long-term integrity of PDF/A documents and digital collections.
PDF versions
How meaningful is PDF’s version number? SafeDocs’ research reveals that 20% of extant files contain features that exceed the stated version!
March 2024 by Peter Wyatt
Peter Wyatt shares his custom metadata panels – very useful for discovering ISO standards and PDF Declarations metadata! (until vendors … Read more
March 2024 by PDF Association staff
The PDF Association has established a new Liaison Working Group (LWG) to serve as a place for forensics experts and … Read more
February 2024 by PDF Association staff
All PDF Association Full and Liaison Members who have joined Technical and/or Liaison Working Groups are welcome for two weeks … Read more
