What is PDF/A?
PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for use in the archiving and long-term preservation of electronic documents. Unlike standard PDFs, PDF/A restricts features that are ill-suited for long-term archiving, such as font linking (as opposed to font embedding) and encryption.
Why Does it Matter?
Imagine opening a legal document 50 years from now. If the fonts used in that document are no longer installed on future operating systems, the document might render incorrectly or become unreadable. PDF/A solves this by ensuring that every piece of information necessary to render the document exactly as it was created is embedded directly within the file itself.
Key Requirements of PDF/A
- 100% Font Embedding: All fonts must be embedded so the document renders identically on any machine.
- No External Content: Audio, video, and external script references (like JavaScript) are strictly forbidden.
- Color Spaces: Device-independent color spaces must be used to ensure colors remain accurate over decades.
Converting to PDF/A
Organizations must often flatten their standard PDFs into the PDF/A format before submission to government archives or legal repositories. Using robust document architecture platforms, this conversion happens seamlessly while preserving vector fidelity.