If you compare it with output from word, the “small” normal sized barcode has 104 pixels, while the 200% “big” QR code has 208 pixels → 200% the size.
The GroupDocs output of the “big” 200% barcode is pretty close to that with 197 pixels, but the “small” QR code with 100% size is only 57 pixels and not 98 or 99 pixels.
Maybe this will be fixed with the other reported issue anyway, I just want to make sure you are aware of it.
This Topic is created by vladimir.litvinchik using Email to Topic tool.
This issue has been fixed in GroupDocs.Viewer for .NET 21.12. See source_and_output.png (111.7 KB) where the source and output QR Code sizes are quite the same.