Fix PDF Comments Not Showing Until Zoom in Adobe Cloud Viewer
Question details
Users need to resolve an issue where PDF comments are invisible upon opening in Adobe Document Cloud via SharePoint and only appear after zooming in or out.

- Product
- Adobe Document Cloud / SharePoint
- Device & OS
- not provided
- Scenario
- Opening and reviewing PDFs with comments through SharePoint using the Adobe Document Cloud web integration.
- Observed behavior
- Comments are initially invisible upon opening the PDF but appear in their correct locations after the user zooms in or out on the document.
Ensure your web browser is updated to the latest version and verify whether the issue persists across different web browsers (like Chrome or Edge) to rule out browser-specific caching issues.
Force Refresh the PDF Comment Layer
Use the zoom function as a quick workaround to force the Adobe Cloud Viewer to re-render missing comment layers.
Because this is a known rendering delay in the web-based viewer, forcing the page to redraw can temporarily solve the visibility issue without requiring a download.
Navigate to SharePoint and open the affected PDF file using the Adobe Document Cloud viewer.
Click the 'Zoom In' (+) or 'Zoom Out' (-) button in the top toolbar of the viewer, or hold Ctrl/Cmd and scroll with your mouse wheel.
Check the document to ensure the missing comments have rendered in their correct locations.
Open the PDF in a Desktop Application
Bypass the web rendering bug entirely by opening the file directly in a dedicated desktop PDF viewer.
Gather Diagnostic Details for Support
Collect necessary version information and screen recordings to submit a bug report for a permanent fix.
Switch to WPS Office for Flawless PDF Management
If cloud-based rendering bugs in SharePoint or Adobe Cloud disrupt your document review process, consider using WPS Office. It provides a lightweight, robust desktop PDF reader alongside full-featured Word, Excel, and PowerPoint alternatives, allowing you to view and annotate PDFs without web glitches.
- 1. Download WPS Office: Install WPS Office on your computer for free.
- 2. Launch the PDF Reader: Open WPS Office and select the 'PDF' module from the main dashboard.
- 3. Open your document: Click 'Open' and select your downloaded PDF to view all comments and annotations flawlessly without zooming workarounds.

Frequently Asked Questions
Why do PDF comments disappear in cloud viewers?
Cloud viewers rely on browser rendering engines. Large or complex PDF comment layers may fail to load initially due to browser caching limits, network latency, or specific rendering bugs in the web viewer's code.
Does this rendering issue happen in the standard SharePoint PDF viewer?
Usually, no. This specific delay is often tied to the Adobe Document Cloud integration within SharePoint. The native SharePoint viewer or desktop apps typically display PDF comments immediately.
How can I permanently fix this PDF comment delay?
A permanent fix requires a software update from the developer of the cloud viewer (in this case, Adobe). In the meantime, you can use workarounds such as zooming to force a page redraw, or switching to a dependable desktop PDF viewer.





