PDFsharp - moved to http://forum.pdfsharp.net/

chuawenching · Joined: 30 Oct 2008 Posts: 2

Hi, I got to know this great PDF library when researching online. I had a situation here. I am quite new to this APIs.

I have 1 folder where the files are dynamically download from the source server. Lets make an assumption, there are 10 PDFs files in this folder (non protected).

I need to transfer this files across the wire. So I need to protect these 10 files with a secret key or password. Then over the destination, I like to unprotect these documents back to the actual documents.

Can I actually do this in PDFSharp? Any snippets to make this happen?

I saw the protect sample code. But it doesn't meet my needs here. Any help?

Thanks.

Thomas Hoevel · Joined: 16 Oct 2006 Posts: 387 Location: Cologne, Germany

Hi!
I'm not sure what you exactly want.

There's a protect sample that adds a password.
There's an unprotect sample that removes the password.
Both change the password that prevents editing. Files are still viewable.

You can also set a password to prevent viewing - Adobe Reader prompts for the password before showing the file. Is that what you want?

You can also store the PDF files in a password protected archive (ZIP, RAR, ...).
_________________
Regards
Thomas Hoevel
PDFsharp Team

chuawenching · Joined: 30 Oct 2008 Posts: 2

Thanks for the response.

Basically, I have 10 existing PDF documents (all un-protected without any password). Can I use C# programmatically protect/unprotect these files using PDFSharp?

Hope you understand.

Any help?

Thomas Hoevel · Joined: 16 Oct 2006 Posts: 387 Location: Cologne, Germany

Look at the ProtectDocument and UnprotectDocument samples.
_________________
Regards
Thomas Hoevel
PDFsharp Team