As your issue description is primarily written in English, I will provide my response in English for your convenience. Please feel free to let me know if you would prefer the information in another language.
Hi SK,
Thank you for providing such a detailed description of the issue and the troubleshooting steps you've already tried.
Since the problem appears to affect PDF edits on the iPad only, while OneDrive continues to sync normally on your Mac and iPhone, this suggests the issue is more likely related to the OneDrive iPad app or the PDF editing workflow rather than a problem with your OneDrive account itself.
Please try the following additional troubleshooting steps:
1/ Test on Wi‑Fi and keep OneDrive open
If you are using cellular data or a managed network, connect the iPad to a stable Wi‑Fi network and keep the OneDrive app open while the upload is attempting to sync. This helps rule out connection-related interruptions that can affect mobile uploads.
2/ Verify background app refresh is enabled
On your iPad, go to: Settings > General > Background App Refresh
Make sure Background App Refresh is enabled globally and specifically for OneDrive.
For reference: Troubleshoot OneDrive for iOS app problems | Microsoft Support
3/ Check whether uploads work outside the PDF editor
To determine whether the issue is related to PDF editing or OneDrive uploads in general:
- Open the OneDrive app.
- Tap + > Upload.
- Upload a small test file, such as a photo or a simple PDF.
Results to look for:
- If the upload also remains stuck at 0%, the issue is likely with the OneDrive upload process on the iPad.
- If the upload succeeds, the problem is more likely related to the PDF save/annotation workflow.
4/ Save a copy instead of overwriting the existing PDF
After making a small edit to the PDF, try one of the following options:
- Save a copy
- Share > Save to Files
- Open in another app
- Save the file to On My iPad and then manually upload it to OneDrive
If the copied version uploads successfully, the original PDF may be locked, corrupted, or stuck in a sync state. This can sometimes occur with files stored in shared folders, school/work OneDrive accounts, or files that have been edited across multiple devices.
5/ Test using OneDrive on the web
On the iPad, open Safari and sign in to OneDrive via the web interface.
Try uploading or editing a file there if possible.
- If uploads work through the browser but remain stuck at 0% in the app, that would strongly indicate an issue with the OneDrive app or its local data on the iPad rather than your account or cloud storage.
6/ Check available iPad storage
Even if your OneDrive storage is not full, low local device storage can prevent edited files from being processed correctly before upload.
Go to Settings > General > iPad Storage
Ensure that several gigabytes of free space are available. OneDrive may require temporary local storage while saving and syncing edited PDFs.
Contact your IT admin :
If the issue continues after testing the above steps, especially since this is an Education account, I would recommend contacting your organization's IT administrator. There may be account-specific policies, storage restrictions, or service-side issues that cannot be verified from the forum.
Your IT administrator can investigate further and, if necessary, open a support case through the Microsoft 365 Admin Center . They can follow the instructions provided in the following guide: Get support - Microsoft 365 admin | Microsoft Learn .
If you’re unsure who your IT admin is, you can find guidance here: How do I find my Microsoft 365 admin? - Microsoft Support.
Note: We appreciate your understanding regarding the scope of support available through this forum. As moderators, our role is to provide general guidance and assist with common troubleshooting steps. While we do not have access to internal systems or administrative tools required to resolve account-specific or backend-related issues but we’ll continue doing our best to support you within the scope of our responsibilities.
I hope this information is helpful and points you in the right direction. If anything is unclear or you need additional assistance, please don't hesitate to let me know. I'd be glad to help.
Thank you for your patience and understanding.
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