To reduce the preview of pages in the Workspace preview pane you can modify a setting in the file called “QxpsFilterServiceConfig.properties”. The default value is 20 pages.
1. Shutdown QPP Server if already running.
2. Go to QPP installation directory > Server > conf folder.
3. Open the file called “QxpsFilterServiceConfig.properties” in any text editing application.
4. Set qxpsfilter.previewPages to the desired value and save the file.
5. Restart QPP Server and verify the number of pages for which preview gets generated.