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Fix PDF Content Disappearing in SharePoint Online Previewer
Question details
Users need to resolve an issue where viewing PDF files in SharePoint Online fails because the content vanishes shortly after loading.
- Product
- SharePoint Online
- Device & OS
- not provided
- Scenario
- Viewing shared or stored PDF documents using the built-in SharePoint Online web previewer.
- Observed behavior
- PDF content appears briefly and then disappears completely. This pattern occurs consistently across multiple PDF files, web browsers, computers, and user accounts.
Verify whether the problem is isolated to a single browser or affects multiple users and devices, as widespread occurrences generally indicate a backend service issue rather than a local configuration error.
Create a Support Request via the Microsoft 365 Admin Center
Escalate the issue to Microsoft Support to investigate the backend PDF previewer service.
When PDF content consistently disappears across different devices, browsers, and user profiles, the root cause typically lies within the SharePoint service or the integrated PDF previewer component. Local fixes like clearing browser cache or changing settings will not resolve service-side anomalies.
Microsoft support engineers have the tools to investigate the backend previewer failures and can escalate the problem to the appropriate development teams.
Log in to the Microsoft 365 admin center using an account with global or support administrator privileges.
Click on 'Support' in the left-hand navigation pane, then select 'Help & support' or 'New service request'.
Enter a description of the problem. Explicitly state that the PDF content disappearance affects multiple files, browsers, and users so that support bypasses basic local troubleshooting.
If requested by the support agent, capture a HAR (HTTP Archive) log using your browser's Developer Tools (F12) while reproducing the error, and attach it to your support ticket.
View and Edit PDFs Locally with WPS Office
Avoid online previewer disruptions in SharePoint by handling your PDF documents locally. WPS Office provides a stable, free, and lightweight solution for reading, annotating, and managing PDF files, alongside full compatibility with standard Office formats.
- 1. Download WPS Office: Install WPS Office for free from the official WPS website.
- 2. Download the PDF from SharePoint: Select the problematic PDF file in SharePoint Online and click 'Download' to save it to your local drive.
- 3. Open the File Locally: Locate the downloaded file, right-click it, and select 'Open with WPS Office' for a stable and continuous reading experience.
Frequently Asked Questions
Why does my PDF content disappear in SharePoint Online?
This is generally caused by a service-side glitch or an update bug within the built-in SharePoint Online PDF previewer, particularly when the issue is experienced by multiple users across various browsers.
Can clearing my browser cache fix the SharePoint PDF previewer?
If the issue exclusively affects your computer, clearing the cache might help. However, if the PDF content disappears for multiple users and devices, clearing the local cache will not resolve the underlying service issue.
How do I capture HAR logs for Microsoft support?
Open your web browser and press F12 to access Developer Tools. Navigate to the 'Network' tab, ensure the 'Preserve log' option is checked, reproduce the disappearing PDF issue, and then click the 'Export HAR' button to save the log file.
Is there a way to read my PDF while waiting for Microsoft to fix the previewer?
Yes. You can select the PDF file in your SharePoint document library, click 'Download' from the top menu, and open the file locally using a desktop PDF reader such as WPS Office.
