Some pdf Documents masked Black

Doconut Product Family
1

Hello,

I’m experiencing a problem with some PDF documents. When I open the PDFs, they look completely normal. However, in the Doconut Viewer, the PDFs appear mostly blacked out, and the majority of the content is not visible.

Here are my questions:

  • Is this an issue related to the Doconut Viewer, or is there something wrong with the PDF itself?
  • Could the PDF’s color space be causing this? The PDF was originally created using a scanner.
  • Are there any known issues with scanned PDFs that might be relevant?

nterestingly, after reprinting the file using a tool like “Microsoft Print to PDF,” the issue disappears, and the PDF displays perfectly in the viewer.

I’ve attached an image from the viewer and the problematic PDF to provide more context.

C00038185_2_1_00623329.pdf

Masked PDF Document.jpg

2

@jsyg,

Thank you for reaching out. Our development team is investigating the issue. To better assist you, could you please provide the following information:

  1. Which version of .NET are you currently using? (.NET Framework, .NET Standard/Core or .NET 6)
  2. Could you also specify the version of Doconut you are using?

Once we have this information, I will be able to provide you with the appropriate assistance.

Thanks for your help!

3

Thank you too for the quick response. here are the following versions:

  1. .NET Framework 4.8.1

  2. doconut version 24.11.0