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Excel header-stamp overwritten when converted to PDF

I’m working on an application where you can upload an excel-file which then puts a stamp on it and afterwards you can - if you will - convert it to a PDF. The problem is that the stamp gets hidden beneath something that seems content-related (the content of the excel-file) which should not be able to happen.

I’ve attached a file which shows the header-stamp when zoomed in to 300%. What you see is actual text which lies beneath some cells “filled” with white. Any preview of the excel-file and other pdf-converters works just fine. How am I suppose to fix this issue?

I’ve just found out that by reverting to an older version of Aspose.Cells ( it got fixed. That means the newer version caused the problem.


Thanks for providing us some details and screen shot for your issue.

Please download and try our latest version/fix: Aspose.Cells for .NET v7.5.2.2 if it works fine.

If you still find the issue, kindly attach your template Excel file here, we will check your issue soon.

Thank you.