Hi folks,
I am in dire need of your help. Any help is very much appreciated.
I have a PDF that has password encryption on it. In the security properties
I can see that
- “Filling of Form Fields” ,“Signing” and “Printing ” is allowed
- where as “Changing the Document” and “Page Extraction” is not allowed.
I have tried signing this document with PoDoFo and It fails. However Adobe
Reader can successfully sign this document (without asking for the password
).
Here is the my code snippet. I am running it on iOS devices
PdfMemDocument memDoc;
memDoc.Load(aPath.UTF8String);//This is where the exception occurs.
Error:
*PoDoFo encounter an error. Error: 8 ePdfError_InternalLogic*
* Error Description: An internal error occurred.*
* Callstack:*
* #0 Error Source: PdfParser.cpp:226*
* Information: Unable to load objects from file.*
* #1 Error Source: PdfParser.cpp:1053*
* Information: Error while loading object 182 0 Offset = 33874 Index = 182*
* #2 Error Source: PdfEncrypt.cpp:1216*
* Information: Error AES-decryption data final*
The Error seems to happen at this link
status = EVP_DecryptFinal_ex(aes, textout + outLen, &dataOutMoved);
A sample document is attached as a reference. The password to this doc is
“abcdef”. However during the signing of these documents I may or may NOT
have the password.
If the attachment doesn't work, you can always use this link.
https://dl.dropboxusercontent.com/u/207337482/PDF_Security_Testing/textDoc_secure.pdf
Thank you
--
Regards,
QS
textDoc_secure.pdf
Description: Adobe PDF document
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