Image Rendering

7 posts, 0 answers
  1. Jacob
    Jacob avatar
    4 posts
    Member since:
    Aug 2012

    Posted 12 Jun 2013 Link to this post

    Hello:

    We have a PDF viewer that works with the exception of two logos at the top of the PDF. They render as black boxes (see attached screen shot). If you print the PDF, the logos are still black boxes, but if you save the PDF and then open it, there are no issues. 

    We are getting the byte array from a WCF service call using MVVM. Prior to trying to use the PDF Viewer we were pushing it to a ashx without issues, but wanted the functionality of the viewer instead. 

    Thanks,
    Jake
  2. Kammen
    Admin
    Kammen avatar
    312 posts

    Posted 13 Jun 2013 Link to this post

    Hi Jake,

    This issue is due to a feature that is currently not supported by RadPdfViewer. This feature is scheduled for Q3 release, so if everything goes according to plan, the file should show correctly then.


    Regards,
    Kammen
    Telerik

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  4. David
    David avatar
    5 posts
    Member since:
    Sep 2008

    Posted 21 Jan 2014 Link to this post

    Hi Guys
    I'm experiencing a similar problem.
    My images are not rendered (or are all white). I've tested this with the following versions:
    • Fails: - Q3 2013 SP1 (version 2013.3.1204)

    • Fails: - Q3 2013 (version 2013.3.1016) 
    • Works OK! - Q2 2013 SP1 (version 2013.2.0724) 



    Can you let me know if there is a fix available yet?

    Thanks,
    David
  5. Petya
    Admin
    Petya avatar
    975 posts

    Posted 22 Jan 2014 Link to this post

    Hi David,

    Could you please provide us with one of the documents causing this issue, so that we can troubleshoot the behavior on our end? In this way we can pinpoint the exact cause of the behavior and try to provide a solution.

    We're looking forward to hearing from you.

    Regards,
    Petya
    Telerik
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  6. David
    David avatar
    5 posts
    Member since:
    Sep 2008

    Posted 22 Jan 2014 Link to this post

    Hi Petya
    Thanks for getting back to me. Please find some files to help you track down this problem.

    There's two screen shots showing my application previewing a sample PDF. 

    The file is a simple Microsoft template from Word.

    How should I get the PDF file to you? Your filter stops me from attaching it. I also renamed to to a PNG and still no joy.

    Let me know if there is anything else you need, I'd be glad to help.
    David.
  7. Petya
    Admin
    Petya avatar
    975 posts

    Posted 24 Jan 2014 Link to this post

    Hello David,

    Could you please check whether you are using the ReadAllAtOnce option for loading documents in RadPdfViewer in your application? Due to some internal changes in the control the option causes some inconsistent behavior in the most recent versions of RadPdfViewer and if this is the case I'd suggest using ReadOnDemand instead.

    If you are still facing difficulties please open a support ticket and send us the document as forum posts only allow attaching images.

    Let me know how it goes.

    Regards,
    Petya
    Telerik
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  8. David
    David avatar
    5 posts
    Member since:
    Sep 2008

    Posted 29 Jan 2014 in reply to Petya Link to this post

    Hi Petya
    I was using the ReadAllAtOnce option - mainly because I preferred the UI experience. I've now changed to the ReadOnDemand option, and this does fix the issue I was having.

    Thanks for your help!
    David
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