The encryption method with code 4 is not supported

2 posts, 0 answers
  1. TuDN
    TuDN avatar
    6 posts
    Member since:
    Dec 2016

    Posted 16 Jun 2017 Link to this post

    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.

  2. Tanya
    Tanya avatar
    623 posts

    Posted 21 Jun 2017 Link to this post


    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

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