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Spreadsheet with watermark is not rendered properly to HTML in .NET


Groupdocs viewer version -

i have attached original document, watermark applied document, screenshot after loading in viewer and converted html for your reference.

Document.zip (182.1 KB)

Issue 1- while viewing row expansion happens
Issue 2- after converting html watermark not showing as like excel

This Topic is created by Atir_Tahir using Email to Topic tool.


Please share the problematic file for this issue as well.

This issue is reproduced at our end. Hence, we’ve logged it in our internal issue tracking system with ID VIEWERNET-3141. You’ll be notified in case of any update.


GroupDocs.Viewer for .NET v21.7 that includes fix for this issue has been published. You can find the new version at

Sample code:

using (Viewer viewer = new Viewer("sample.xlsx"))
   HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources();
   viewOptions.SpreadsheetOptions = SpreadsheetOptions.ForOnePagePerSheet();
   viewOptions.SpreadsheetOptions.RenderGridLines = true;

Have a nice day!