You try to upload a PDF or image in the Perplexity mobile app and see the error message “File Upload Failed.” This problem often occurs because of file size limits, unsupported formats, or temporary connection glitches. In this article, you will learn the exact steps to resolve the upload failure and prevent it from happening again.
Key Takeaways: Fixing Perplexity File Upload Errors on Mobile
- App cache clear: Clears corrupted temporary data that blocks file uploads.
- File size under 25 MB: Perplexity rejects files larger than 25 MB on mobile.
- Supported formats only: Use PDF, PNG, JPG, or TXT files to avoid format rejection.
Why Perplexity Shows “File Upload Failed” on Mobile
The “File Upload Failed” error appears when the mobile app cannot complete the file transfer to Perplexity servers. The root cause is almost always one of three things: the file exceeds the 25 MB size limit, the file format is not in the allowed list (PDF, PNG, JPG, TXT), or the app’s cached data has become corrupted.
When you upload a file, the app processes it locally before sending it to the cloud. If the local processing step fails due to a cache conflict, the entire upload stops and returns the error. A weak or unstable internet connection can also interrupt the transfer, but the mobile app does not always show a separate network error.
Steps to Fix the Upload Failure on Mobile
- Check the file size
Open your file manager app and locate the file you want to upload. If the file is larger than 25 MB, compress it or choose a smaller file. Perplexity accepts files up to 25 MB on mobile devices. Files above this limit trigger the upload failure immediately. - Confirm the file format
Verify the file extension is PDF, PNG, JPG, or TXT. Perplexity does not support DOCX, XLSX, or ZIP files on mobile. If you try to upload an unsupported format, rename the extension or convert the file using a free online converter. - Clear the app cache
On iOS: go to Settings > General > iPhone Storage > Perplexity > Offload App. Then reinstall the app from the App Store. On Android: go to Settings > Apps > Perplexity > Storage > Clear Cache. Do not tap Clear Data unless you want to sign in again. After clearing the cache, relaunch the app and try uploading again. - Switch to a stable network
Turn off mobile data and connect to a Wi-Fi network with strong signal. Alternatively, toggle Airplane Mode on and off to reset the network adapter. Open a web browser and load a page to confirm internet access works before retrying the upload. - Restart the app or device
Force close the Perplexity app completely. On iOS, swipe up from the bottom and swipe the Perplexity card off the screen. On Android, open the recent apps list and swipe Perplexity away. Then restart your phone. A fresh boot clears temporary system glitches that block file uploads. - Update the Perplexity app
Open the Apple App Store or Google Play Store and search for Perplexity. If an update is available, tap Update. Older app versions may have bugs that cause file upload failures. After updating, repeat the upload process.
If Perplexity Still Shows the Upload Error
“File Upload Failed” on a Specific File Only
The file itself may be corrupted or password-protected. Try opening the file on your phone to confirm it displays correctly. If the file requires a password, remove the password protection using a desktop tool and transfer the unprotected version back to your phone. Perplexity cannot process encrypted or password-protected files.
Error Persists After Clearing Cache and Updating
The issue may be on Perplexity’s server side. Wait 30 minutes and try again. If the problem continues, submit a bug report in the app: tap your profile icon > Help > Contact Support. Include a screenshot of the error and the file type you tried to upload. The support team can check server logs for blocked uploads.
Upload Fails Only on Cellular Data
Your mobile carrier may block large file uploads or use a proxy that interferes with Perplexity. Switch to Wi-Fi and test the upload. If it works on Wi-Fi but fails on cellular, contact your carrier to ask about file upload restrictions on your plan.
Perplexity Mobile vs Desktop: File Upload Limits
| Item | Mobile App | Desktop Browser |
|---|---|---|
| Maximum file size | 25 MB | 100 MB |
| Supported formats | PDF, PNG, JPG, TXT | PDF, PNG, JPG, TXT, DOCX, XLSX |
| Cache clearing method | App settings or offload | Browser cache in Settings |
| Network dependency | Wi-Fi or cellular | Any internet connection |
The table shows that the mobile app has stricter limits than the desktop version. If you frequently need to upload large files or DOCX documents, use Perplexity on a desktop browser instead.
You can now fix the “File Upload Failed” error by checking file size and format, clearing the app cache, and switching to a stable network. To avoid future failures, always confirm your file is under 25 MB and in a supported format before uploading. For persistent issues, submit a support request directly from the Perplexity app with a screenshot of the error message.