Fix Mobile App Opening the Same Previously Viewed PDF File
Question details
Users report that selecting a new PDF file opens a previously viewed document instead of the new one.

- Product
- Acrobat Reader Mobile
- Device & OS
- not provided
- Scenario
- Opening multiple PDF files directly from third-party messaging applications like WhatsApp.
- Observed behavior
- The PDF reader app displays the last opened file instead of loading the newly selected PDF document.
Ensure you close all currently open PDF documents and completely force-close your PDF reader application to clear active temporary memory before proceeding.
Download and Save the PDF Locally Before Opening
Saving the file to your device's local storage prevents caching conflicts that occur when opening files directly from messaging app temporary folders.
Open the chat in WhatsApp or your messaging app, tap the PDF file options or the download icon, and select 'Save to Device'.
Open your mobile device's native File Manager or Files app and navigate to the Downloads folder where the document was saved.
Tap the newly saved PDF file to open it directly through your preferred PDF reader app, ensuring a fresh file load.

Update the PDF App and Restart Device
Installing the latest version of your PDF reader resolves known bugs related to file handling and application cache management.
Use WPS Office to Reliably Open PDFs on Mobile
Bypass file caching bugs entirely by using WPS Office. Its robust built-in PDF reader seamlessly opens documents directly from WhatsApp and other messaging apps without mixing up your files.
- 1. Download WPS Office: Install WPS Office for free from your mobile device's app store.
- 2. Select the PDF: Tap on the new PDF file you received in your messaging app or email client.
- 3. Choose WPS Office: From the 'Open With' prompt on your screen, select WPS Office to ensure the correct file is loaded instantly.

Frequently Asked Questions
Why does my mobile app keep opening the same old PDF?
This happens due to a caching error where the PDF app retrieves the last temporary file stored in its active memory instead of fetching the new file data passed from your messaging app.
How do I clear the cache for my PDF reader on mobile?
On Android, go to Settings > Apps > [Your PDF App] > Storage, and tap 'Clear Cache'. On iOS, you generally need to uninstall and reinstall the app to completely clear its cached data.
Does this issue happen with email attachments too?
Yes, it can happen with any third-party application that uses temporary sandbox storage for file attachments. Saving the file locally to your device before opening is the most reliable workaround.




