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Can you tell me what you need specifically in that document adn maybe we can provide you with that particular info?
I need to know to what extend PDF Signing was part of the PDF 1.4 Specification. And since that document is referenced in the 1.4 spec it was the next logical thing to read...
You can read the PDF 1.5 specification OR even ISO 32000-1 itself for that information. Each feature is "tagged" with the specific version in which it was introduced.
Digital Signatures were first introduced in Acrobat 4 (PDF 1.3) and have seen various improvements which each version since.
For anybody who also needs it:
URL for improperly posted Adobe document deleted by Management
Please remove that file IMMEDIATELY!
You do NOT have permission from Adobe Systems to post our content on your servers - especially content which is no longer supported or current.
I would like to point out that this is NOT our/my server. Found it thanks to google. Anyway still can't understand the fuss about it.
Not Adobe Systems
If you do not try to protect copyrighted materials you loose the ability
to do so.