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Signature invalid in Acrobat, but not invalid in Reader

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Level 1

Hello,

which tool is prefered to determine the signature validity? I have a signed dynamic form with multiple sign fields. When I open it in Adobe Acrobat 9 Pro on Windows 7, it shows me for the first signature of the document, that "Document has been altered or corrupted since it was signed".

acrobat_view.jpg

When I open the same document on another computer in Adobe Reader 9.5.2 on Windows XP, it tells me that "This revision of the document has not been altered".

reader_view.jpg

Which one of these should I trust?

Best regards,

Tomas Hansut

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