Fix OneDrive PDF Annotations Disappearing on Samsung Tab S8
Question details
Handwritten S Pen annotations on PDFs fail to save or synchronize to OneDrive.
- Product
- OneDrive
- Device & OS
- Samsung Tab S8
- Scenario
- Annotating PDF files using an S Pen while offline or connected to unstable networks.
- Observed behavior
- Annotations disappear completely or partially fail to sync to the cloud when switching networks or closing the app.
Ensure your Samsung Tab S8 is connected to a stable Wi-Fi or cellular network, and verify that you have edit permissions for the specific PDF file.
Allow Sync to Complete on a Stable Network
Prevent data loss by ensuring OneDrive finishes synchronizing your local changes before closing the app.
OneDrive temporarily caches your handwritten annotations locally. If you close the app forcefully or power down your tablet before the sync completes, these local edits may be lost or only partially uploaded.
Switch from a public or unstable connection to a reliable Wi-Fi network or use your cellular data.
After finishing your annotations with the S Pen, leave the PDF open in the OneDrive app for a few moments to allow background syncing to initiate.
Return to the OneDrive file list and check the file icon for the sync completion badge before closing the app.
Update and Reset the OneDrive App
Fix underlying software glitches that may be preventing the app from saving or uploading annotations correctly.
Annotate PDFs Reliably with WPS Office
Avoid sync failures and lost notes by using WPS Office to annotate your PDFs. WPS offers highly responsive S Pen support, secure local saving, and integrated cloud synchronization.
- 1. Open your PDF in WPS: Launch the WPS Office app on your tablet and open your target PDF document.
- 2. Select the Annotation tools: Tap on the 'Edit' menu and navigate to the 'Annotation' or 'Pen' tab.
- 3. Draw with your S Pen: Make your handwritten notes, highlights, and drawings directly on the document pages.
- 4. Save and Sync: Tap the 'Save' icon. WPS instantly saves the file locally and seamlessly syncs it to your preferred cloud storage in the background.
Frequently Asked Questions
Where does OneDrive store unsynchronized PDF annotations on Android?
Unsynchronized annotations are temporarily stored in the OneDrive app's hidden cache partition on your device. They cannot be directly extracted as separate files and rely on the app merging them with the cloud document once internet access is restored.
Can I recover lost handwritten PDF annotations that failed to sync?
If the OneDrive app was cleared from memory or closed forcefully before the sync process was completed, the unsynced local cache is usually discarded, and the annotations are unfortunately lost permanently.
Why do only part of my PDF annotations save when using OneDrive?
This typically happens during micro-drops in your network connection. If the connection fails mid-sync, OneDrive might only successfully upload the S Pen strokes saved up to that exact moment.
Do I need special permissions to annotate PDFs in OneDrive?
Yes, you must have 'Edit' or 'Read/Write' permissions for the file. If the PDF is stored in a shared folder where you only have 'View' access, your annotations will not save.
