If you try to open a digital document created in the 1990s today, chances are the fonts are missing, the layout is broken, or the software that created it no longer exists. For national libraries, patent offices, insurance firms, and judicial courts, digital files must remain readable for decades or centuries. This is why the International Organization for Standardization created the PDF/A specification.
#1What Makes PDF/A Different from Standard PDF?
Standard PDFs can contain external font references, dynamic JavaScript triggers, embedded audio, and encrypted passwords. If an external font server shuts down or JavaScript is deprecated, the document fails.
PDF/A strictly forbids all features that depend on external resources or dynamic runtime execution:
1. 100% Font Embedding: Every single glyph must be physically embedded inside the file.
2. Device-Independent Color: Color must be calibrated using standard ICC profiles.
3. No Audio, Video, or 3D Objects: Only static page elements are permitted.
4. No Executable Code: JavaScript actions and external launch triggers are permanently banned.
Conclusion
Guarantee that your agreements, land deeds, and corporate patents remain readable for generations to come with MistPDF's archival tools.
常见问题解答
What is the difference between PDF/A-1b and PDF/A-2b?
PDF/A-1 is based on PDF 1.4, while PDF/A-2 (ISO 19005-2) supports modern JPEG 2000 image compression, transparency layers, and digital signatures.
Can I convert standard PDFs to archival-ready files in MistPDF?
Yes. Flattening interactive forms, embedding fonts, and stripping dynamic JavaScript creates an immutable, archival-compliant document.