Fix PDF Right-to-Left Scrolling Not Working on Android
Question details
An accessible PDF created in Adobe InDesign fails to scroll correctly from right to left on Android devices, despite functioning properly on iOS.
- Product
- PDF Reader
- Device & OS
- Android
- Scenario
- Viewing an accessible right-to-left PDF document on an Android mobile device.
- Observed behavior
- The PDF scrolls correctly on an iPhone but does not follow the intended right-to-left scrolling behavior in the Android PDF viewer.
Verify whether the problem is specific to a single PDF viewer by opening the file in at least two different Android PDF reader applications.
Adjust the PDF Reading Direction Settings
Some Android PDF readers do not automatically inherit right-to-left binding tags and require manual configuration.
By default, many mobile PDF readers force a top-to-bottom or left-to-right scrolling layout, overriding the document's native structural tags. Manually changing the view mode can bypass this limitation.
Tap the center of your screen while viewing the PDF to bring up the bottom or top menu bar, and select the 'Settings' or 'View' icon.
Look for a setting named 'Page Transition', 'View Mode', or 'Scrolling Direction'.
Switch the configuration from Continuous/Vertical to 'Horizontal' or 'Right-to-Left' (RTL) depending on the specific application's options.
Re-export the PDF with Strict Accessibility Tags
Ensure the source document in InDesign is configured correctly before exporting to mobile platforms.
Share File with Application Support
If the file is structurally sound but still fails to render on a specific app, report the bug to the developers.
Read and Scroll PDFs Smoothly with WPS Office on Android
WPS Office provides a highly optimized PDF reading experience for Android devices, natively supporting various structural layouts and manual scrolling directions to ensure you can read accessible documents exactly as intended.
- 1. Install WPS Office: Download and install WPS Office from the Google Play Store on your Android device.
- 2. Open the PDF File: Launch the application, navigate to the 'Files' tab, and tap on your PDF document to open it.
- 3. Access View Settings: Tap 'Tools' in the bottom menu bar, then select the 'View' tab.
- 4. Adjust Scrolling: Under 'Page Transition', select the horizontal reading mode that matches your preferred scrolling layout.
Frequently Asked Questions
Why does a PDF scroll properly on iPhone but not on Android?
iOS and Android operate on fundamentally different rendering engines. While iOS native PDF handling might automatically interpret certain right-to-left structural tags from InDesign, many default Android PDF readers require manual setting adjustments to replicate that behavior.
How do I force a PDF to scroll horizontally on my phone?
In your PDF viewer app, tap the screen to bring up the main menu, go to the 'Settings' or 'View' tab, and locate the 'Page Transition' or 'Scrolling' options. Change the default vertical scroll to horizontal.
Does WPS Office support accessible tagged PDFs?
Yes, WPS Office offers excellent compatibility with standard PDF formats, maintaining text formatting, image alignments, and offering multiple reading modes so tagged or interactive elements are rendered properly.
Can I fix the scrolling issue directly in InDesign?
You can mitigate the issue by ensuring the Binding direction is explicitly set to Right-to-Left in the Document Setup, and that 'Create Tagged PDF' is enabled during the Interactive PDF export process. However, the final behavior still depends heavily on the chosen Android reader app.
