How to Fix PDF Highlights Disappearing After Reopening
Question details
The user is experiencing an issue where highlighted text annotations in a PDF disappear after the document is closed and reopened.

- Product
- PDF Editor
- Device & OS
- not provided
- Scenario
- Highlighting text in a PDF document and subsequently closing and reopening the file.
- Observed behavior
- The highlighted annotations are not saved or synchronized, resulting in their disappearance when the file is opened again.
Ensure you have a stable internet connection if you are editing files directly from a cloud storage service, and verify that you are logged into the correct user account on your PDF software.
Ensure Proper Saving and Cloud Synchronization
Manually save your document and wait for cloud synchronization to complete before exiting the application.
Often, PDF highlights disappear because the application is closed before the changes can be written to the local disk or synced to the cloud.
Click the Save icon in your PDF editor or press Ctrl+S (Windows) / Cmd+S (Mac) immediately after applying your highlights.
If you are editing a cloud document, look for the synchronization icon or status bar in the software to confirm the upload has reached 100%.
Navigate to the account settings within your PDF application to ensure you are signed into the correct account where the cloud file is hosted.

Avoid Editing Temporary Files
Save PDF files to a permanent local folder before applying highlights, rather than opening them directly from email attachments or web browsers.
Update Software and Test a Fresh Document
Resolve application-specific glitches by updating your PDF editor and testing a fresh copy of the document.
Keep Your PDF Highlights Intact with WPS Office
WPS Office provides robust PDF editing features with reliable saving mechanisms and seamless cloud synchronization, ensuring your highlights and annotations are never lost.
- 1. Open your PDF in WPS Office: Launch WPS Office on your device, click on 'Open', and select the PDF file you wish to annotate.
- 2. Apply Highlights: Navigate to the 'Comment' tab, select the 'Highlight' tool, and drag your cursor over the text you want to emphasize.
- 3. Save and Sync: Click the Save icon at the top left. WPS Office will securely save your annotations locally and automatically sync them if you are using WPS Cloud.

Frequently Asked Questions
Why do my PDF highlights show up on my PC but not on my mobile device?
This usually happens due to incomplete cloud synchronization. Ensure the file has fully uploaded and synced from your PC before opening it on your mobile device.
Can the document's security settings prevent highlights from saving?
Yes. If the PDF is restricted by the author or marked as 'Read-Only' in your system, you might be able to add highlights temporarily in the viewer, but they will not be saved to the file when you close it.
How can I permanently flatten highlights so they cannot be removed?
You can preserve annotations permanently by printing the document to a new PDF. Go to 'Print', choose 'Microsoft Print to PDF' or 'WPS PDF' as your printer, and save the output to 'flatten' the highlights into the core document.
Do highlights disappear if I use a different PDF viewer to open the file?
Sometimes different PDF software renders annotations differently. However, standard PDF highlights saved correctly should appear across all major PDF readers, including WPS Office, Adobe Acrobat, and modern web browsers.




