"PDF/A specifies a subset of the PDF file format that is more suitable for long-term preservation than the traditional PDF. For example, the standard will forbid links to outside documents and require fonts to be embedded in documents, making the documents completely independent of outside resources, said Diana Helander, Adobe's business development manager for worldwide standards. The documents must include metadata so that archived documents can be fully searchable, auditable and traceable.
'There's no encryption allowed, so that if Adobe doesn't exist in 200 years, someone can still open the document,' Helander said. 'We expect to see a lot more government agencies adopting PDF/A.'"
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