Text is cropped when using GroupDocs.Viewer to convert PDF to HTML in .NET Framework 4.8

GroupDocs.Viewer Product Family
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1

I am using the GroupDocs.Viewer.24.6.0 package in my project. I use the following code to convert PDF and other documents to HTML:

using (Viewer viewer = new Viewer(stream, loadOptions))
{
    HtmlViewOptions viewOptions = HtmlViewOptions.ForExternalResources(
        Path.Combine(outputPath, "page_{0}.html"),
        Path.Combine(outputPath, "page_{0}/resource_{1}"),
        url + "/page_{0}/resource_{1}");
    viewer.View(viewOptions);
}

One PDF file does not render correctly. Some texts are cropped.
I am attaching screenshots from Adobe Reader, where the OK texts can be seen and after conversion to HTML, where they are cropped:
AdobeReader_A.jpg (23.5 kB)
AdobeReader_B.jpg (25.1 kB)
GroupDocs_A.jpg (14.8 kB)
GroupDocs_B.jpg (17.6 kB)
What could be the problem?

Thank you,
Jiri

2

@jiri.darmovzal

It can be font-related issue. Can you please share the source file so we could investigate this issue?

3

Hello @vladimir.litvinchik,

I have permission from the customer to forward the document to support. If I attach it here in the forum, will other users not be able to access it?

Thank you,
Jiri

6

@jiri.darmovzal

You can send the file in a personal message. Click my avatar and click Message.
Please also share the code you used to create the PDF file.

7

@jiri.darmovzal

It is a bug on our side that we have to investigate. At the moment I can propose you two workarounds:

  1. Render PDF pages as image by enabling RenderTextAsImage property
viewOptions.PdfOptions.RenderTextAsImage = true;
  1. Fix inline styles by replacing text "overflow:hidden;" in HTML document with empty string.

This is the sample application that demonstrates both workarounds: sample-app.zip (1.8 KB).

As soon as we have updates we’ll let you know.

8

Thank you, @Vladimir_Litvinchik,

I successfully applied the workaround to the application. It seems that WO does not affect other documents.

Best regards,
Jiri

9

@jiri.darmovzal

Thank you for the feedback.