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Change ActualZoom of PDF Viewer, or force it to load zoomed in? (changing zoom crashes on iOS)

I'm using the PDF Viewer in a app to be used on iPad.


As someone else found in 2017, changing the zoom of the PDF Viewer on iOS tends to crash the app and force it to restart. This happens whether using the built-in controls or making custom zoom controls.


As a workaround, I'd like to have the pdf be zoomed in by default, however even when changing the Zoom attribute, the PDF Viewer always loads to fit the width of the area.


Is there any way to force the PDF Viewer to start zoomed in, perhaps by modifying the ActualZoom attribute?

I don't see anywhere that ActualZoom can be modified.

Community Support
Community Support

Hi @RGartman ,


It seems that I have reproduced your issue. I will try to discuss this issue with others and see if they have further suggestions. Sorry for the inconvenience.




Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Advocate II
Advocate II

@v-monli-msft-- Any update on this? In my app, the PdfViewer is still loading up set to Zoom.FitWidth, regardless of what the Zoom attribute is set to. Setting the Zoom attribute that changes OnVisible also does not work.

Advocate IV
Advocate IV

@v-monli-msft , same issue/requirement here. Any update?

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