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2 replies

Bernd Alheit
Community Expert
Bernd AlheitCommunity Expert
Community Expert
November 26, 2023

What issue have you?

K
kushalappa33854071hiyiAuthor
Participant
November 26, 2023

Hypen in password  is the issue. 5hesepdf are a year old and now i can't open. It was working before 

Bernd Alheit
Community Expert
Bernd AlheitCommunity Expert
Community Expert
November 27, 2023

Enter the correct hyphen.

MikelKlink
MikelKlink
Participating Frequently
November 26, 2023

Are there non-ASCII characters in the password and is the PDF encrypted using a deprecated or non-standard mechanism?

(Currently the only standard, non-deprecated mechanism for PDF encryption is V5/R6 AES256.)

The deprecated mechanisms are specified to convert Unicode characters to host system codepage characters and then on to PDFDocEncoding. As this depends on the host system (in particular for non-ASCII characters), you may have issues decrypting a PDF encrypted on a different host. And different PDF viewers may have different ideas about the codepage to use here.

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