Indeed, the text of the pdf document is not drawn sharp. I confirm that is a bug and we will research how to improve it. For the time being, what I could suggest, would be to follow the bug report so that you would get notified, via e-mail, when its status gets changed.
Thank you for bringing this to our attention. I will need some more time to look into the case before considering the difference as a bug or expected behavior in the WinUI 3. I will get back to you once we have more information on your scenario.
Regards,
Ralitsa Progress Telerik
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