Details
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Type: New Feature
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Status: Closed
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Priority: Major
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Resolution: Fixed
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Affects Version/s: 4.0 - Beta
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Fix Version/s: 4.3
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Component/s: Core/Parsing
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Labels:None
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Environment:PDF document with crypt filter definitions
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Assignee Priority:P3
Description
Crypt filters are a relatively new addition to PDF encryption. We are starting to see more and more documents using crypt filters as Adobe users upgrade to version 8 or 9 of Acrobat. The bug is a place holder for implementing a crypt filter manager and hooking it up to our stream chaining read and write capabilities.
I've added basic support for crypt filers and AES encryption support. This allows ICEpdf to open our limited number of crypt filter examples. Hopefully more examples can be found so that this new features can be hardened.
ICEpdf can now open encrypted documents up to PDF v 7.0. Further work is needed to get to version 9.0 as 256 bit AES encryption support has yet to be implemented.