TMS VCL pack - pdfviewer not function on some users

VCL TMS VCL UI Pack
1

Dear all,

My program has the pdf viewer to view PDF file. When I deploy / install my application to users. Some users can view the pdf content and some users display blank page only without prompt any error message. Why ? Any missing ? Please advise.

2

Hi,

Please provide some more details, operating system? Note that TAdvPDFViewer relaties on the Microsoft PDF Document integrated in the operating system

It requires a minimum of Windows 10

3

Hi,

We noticed that it happend on either Windows 11 or Windows 10. Some users does not display the PDF content and some are normal in display PDF content.

Any hints to fix it ?

Thanks.

4

Hi,

Are you able to open the PDF in another PDF Reader? What about the Edge Chromium browser? TAdvPDFViewer is a component that wraps Microsoft APIs, so all we do is use the APIs and then render the result. If something is going wrong, then it's more than likely an issue with the PDF, the operating system or incorrect WinRT libraries / version. You might want to check that and compare it with an operating system where everything works fine. If the PDF file does not contain sensitive information, you can send it to us so we can investigate here. If you generated the PDF yourself, it could be possible that the culprit is the engine that you generated the PDF with.

5

Hi.

I can open this PDF file by Adobe reader so it is not the file corrupted.
Some user need to admin right to install my program. after installed, I cannot view the pdf content via my program with TAdvPdf viewer. However, if I switch to another user to login then I run the same program, then it can display pdf content. so strange..