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PDF decryption problem Options
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Tom
Posted: Thursday, May 2, 2013 4:06:32 PM
Rank: Newbie
Groups: Member

Joined: 5/2/2013
Posts: 1
I am trying to remove existing security and add a different password. Basically, I want to remove the user password and replace the owner password. The following code does not work, the existing user password remains:

Code: C# 
PdfDocumentSecurity security = new PdfDocumentSecurity("123");
PdfDocument doc = new PdfDocument(file, security);
doc.Save(Path.Combine(encryptedPath, baseFileName));


I have tried removing the old password and replacing the owner password in one step by overwriting the existing file, saving the PDF to a new directory between these two steps, setting the user pass to an empty string, nothing. The user pass persist no mater what. Any help is appreciated.
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eo_support
Posted: Friday, May 3, 2013 4:24:35 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,195
Hi,

You have to explicitly clear the user password before resave it:

Code: C# 
//Clear the user password
doc.Security.UserPassword = null;

//Save it
doc.Save(....);


Thanks!
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