Hi Arthur,
We have created an sample to replicate the issue, “Pdf document is not displayed taking up the full height of the window” in Xamarin Forms.UWP Platform, but its working as expected.
Please find the sample in the below link,
Could you please try the above sample and let us know whether you are able to replicate the issue with this? If so, kindly share the following details to analyze more on this issue and assist you with the better solution.
1. Modified sample to reproduce the issue (only if any changes made).
2. PDF document.
3. Device specification.
4. SfPdfViewer version.
5. Replication video/procedure.
Regards,
Ashok Kumar Viswanathan.