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The encryption method with code 4 is not supported

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TuDN
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TuDN asked on 16 Jun 2017, 10:27 AM

Hello Telerik

In my applycation, I choose a pdf file, create preview image by using ThumbnailFactory, and show file in PdfViewer. But I receive exception as title because Telerik's framework cannot read pdf file with encryption algorithm 4. And PdfViewer  I google this bug and find nothing. So can you provide me some tip, trick to get over this bug. Thank you so much.

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Tanya
Telerik team
answered on 21 Jun 2017, 08:28 AM
Hello,

The error you are getting is caused by an unsupported feature that is used in the document. We have already logged a request to implement support for encryption algorithm 4 and you can vote for the implementation as well as subscribe to track its status using the related public item

Regards,
Tanya
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