Power Platform Community Forum Thread Details

Hi,

The issue you’re describing in the Power Apps PDF Viewer control—where the "Show Controls" property doesn't persist as expected—may be a bug or a behavior influenced by the app’s logic or settings. Here's a breakdown of potential causes and solutions:

Possible Causes:

Control Resetting Issue:
- The "Show Controls" property might be resetting to its default value due to app navigation or state changes.
State Management Problem:
- If the property is being updated dynamically in the app's formula, it could conflict with manual settings.
Platform or Environment Bug:
- There could be a bug in the Power Apps PDF Viewer control itself, especially if this behavior started after a platform update.
Conditional Logic or Formula:
- Check if there's any formula in the "Show Controls" property or elsewhere that affects its visibility.

Steps to Troubleshoot and Resolve:

1. Verify "Show Controls" Property:

Ensure the "Show Controls" property is explicitly set to true.
If it’s dynamically set using a formula, verify the logic to ensure it's always true when required.

2. Test Static PDF:

Load a static PDF file into the viewer and check if the issue persists. If the behavior works with a static file, the problem might be related to how the PDF is being dynamically loaded.

3. Inspect App Navigation Logic:

If the PDF Viewer is part of a screen that gets reloaded or reset, ensure the control's state (including "Show Controls") is not being affected by navigation or reset actions.

4. Upgrade or Reinstall Power Apps Studio:

Ensure you're using the latest version of Power Apps Studio. Sometimes, reinstalling or upgrading resolves such issues.

5. Workaround for Persistent "Show Controls":

Use a variable to control the visibility:

// Set the variable when the app starts OnStart: Set(ShowPDFControls, true); // Use the variable in the "Show Controls" property Show Controls: ShowPDFControls
This ensures the controls remain visible unless explicitly toggled.

6. Test in Different Browsers/Devices:

If the app behaves differently in browsers or on mobile devices, this might indicate a rendering issue or device-specific bug.

7. Report to Microsoft Support:

If none of the above steps resolve the issue, report it to Microsoft. Include:
- App details (platform, environment, version).
- Steps to reproduce the issue.
- Screenshots or videos demonstrating the problem.

Temporary Workaround:

If the issue persists despite the above steps, consider creating custom zoom and navigation controls (e.g., buttons to increment/decrement zoom level or navigate pages) using the PDF Viewer’s properties:

Zoom: Use the Zoom property to control the zoom level dynamically.
Navigation: Use the Document.Pages property for page navigation.

Here’s an example of custom controls:

// Buttons for Zoom

OnSelect (Zoom In): Set(PDFZoom, PDFZoom + 10);

OnSelect (Zoom Out): Set(PDFZoom, PDFZoom - 10);



// Buttons for Page Navigation

OnSelect (Next Page): Set(CurrentPage, Min(CurrentPage + 1, PDFDocument.Pages));

OnSelect (Previous Page): Set(CurrentPage, Max(CurrentPage - 1, 1));



// Apply the variables to the PDF Viewer properties

Zoom: PDFZoom

Page: CurrentPage

----------------------------------------------------------------------------------
If this Post helped you, please click "Does this answer your question" and give it a like to help others in the community find the answer too!