Rank 1
We have been using the PDF viewer and support built into WinForms for some time for viewing PDF files from our vendors. Just in the last month or two we have been getting documents that are not viewable in the Winforms application but are viewable with Adobe Acrobat.
We are getting the error message: "Error loading document: The encryption method with code 4 is not supported".
I did a google and see a Telerik enhancement request to resolve this. (with 8 "likes")
Telerik folks -- any idea when/if this might be supported? Not being able to view some documents is obviously a problem.
Anyone -- If you get documents that aren't viewable is there any process that you have found that would make them work? (some sort of PDF to PDF conversion?)
Thanks!
Brad Harrison
Better Baked Foods
1 Answer, 1 is accepted
Thank you for writing.
Currently, this is not supported in RadPdfViewer. We already have a feature request logged in our feedback portal. You can track its progress, subscribe for status changes and add your comments on the following link: https://feedback.telerik.com/Project/154/Feedback/Details/153358-add-radpdfviewer-add-support-for-encryption-algorithm-4-exception-the-encryp
Currently, this feature is not scheduled for the upcoming release. The more customers vote for it, the higher its priority becomes.
Should you have further questions I would be glad to help.
Regards,
Dess
Telerik by Progress