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Use Aspose.PDF for .NET in .NET Core 3.0 - IIndexBitmapConverter Exception


I’m trying to create a custom IIndexBitmapConverter class but I get:

The type ‘Bitmap’ exists in both ‘Aspose.Drawing, Version=, Culture=neutral, PublicKeyToken=716fcc553a201e56’ and ‘System.Drawing.Common, Version=, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51’

Code (copy - paste from : https://docs.aspose.com/display/pdfnet/Performance+Improvement+during+PDF+to+TIFF+Conversion#PerformanceImprovementduringPDFtoTIFFConversion-Implementationdetails)

using Aspose.Pdf;
using System;
using System.Drawing;

namespace Papyros.Servers.Extract.Converters
public class WinAPIIndexBitmapConverter : IIndexBitmapConverter
public Bitmap Get1BppImage(Bitmap src)
return CopyToBpp(src, 1);

    .... etc ....



Please try to use complete Class name with namespace in order to prevent the issue e.g. System.Drawing.Bitmap. In case issue still persists, please share a sample console application in .zip format so that we can test the scenario in our environment and address it accordingly.


Removed the Aspose.Drawing package and it worked.

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