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Topic: Default security settings in AA6 applied to PDF 1.4 files
Conf: (P-PDF) Acrobat 6.0, Msg: 97304
From: iburton
Date: 9/29/2003 02:22 AM

PDF 1.5 seems to have a number of useful security settings that can be handled in Acrobat 6 applications (Reader, Standard and Pro). However, these same Acrobat 6 applications, when reading PDF 1.4 and earlier, seem to default to the most restrictive interpretation possible. For example, someone creates a PDF in AA5 file for distribution for comment. Users of AA6 applications do not appear to be able to comment, because there's not specific security option in the PDF that says allow comments. So AA6 applications default to "Comments not allowed".

Please note this is only a theory based on reported difficulties, and the behavior of Reader6 (Reader 6 help file describes comment tools, but perhaps - though not stated by the authors of the help file - comment tools will work only with the Reader Extensions server software). I would like to be reassured that PDFs created as 1.4 can be commented on by AA6 Standard and Pro without users having to mess with default security settings.

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For people who don't spend their time looking at PDF files in text editors*, PDF security is a sometimes misunderstood beast.

For example, those document restrictions that PDF files sometimes have -- no Printing, Content Copying, Page Extraction, etc -- are essentially useless unless the PDF also has a User Password.

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