There is a very rare issue of compatibility between PDF Studio and certain graphics cards on Windows 10.
Sometimes the application will show areas parts that repeat or the PDF content may look scrambled.

An average PC comes with two graphics cards and usually by updating the drivers or tweaking your graphical preferences, you can resolve these kind of rendering issues.

Here are a few things to try:

  1. Start by making sure that you have the latest driver update for your graphics / video card in case there are any issues that have been fixed in an update.
  2. Change the settings to not use the external graphics card for PDF Studio and run on the built in graphics instead through Windows Preferences. You will need to set application-specific hardware rendering for PDF Studio 2021.To do this for Windows 10:
    • Go to settings, search for GPU, and choose graphics settings
    • Scroll down to a section called “Graphics performance preference.”
    • Select desktop app and browse to: C:\Program Files\PDFStudio2021\pdfstudio2021.exe. This creates a listing for PDF Studio 2021.
    • Click on options and select “Power Saving: AMD Radeon(TM) Graphics.” .
    • Read more about this.
  3. If your graphics card allows, try disabling hardware acceleration for PDF Studio, if it is enabled. To do this, right click on the desktop and choose Properties. In the dialog that shows up, go to the Settings tab and then press Advanced. The Advance dialog should / might have a tab called “Troubleshoot” where there should be a setting to disable hardware acceleration for PDF Studio.
  4. If you’re using “Nvidia” graphic card, try to disable SLI option
    • Open the Nvidia Control Panel
    • Open the Set SLI and PhysX Configuration option
    • Disable SLI option
    • Reboot your computer
  5. There are also ways to pass on some graphical options to PDF Studio application. Try the 2 options below, in the given order.
    • Add -Dsun.java2d.d3d=false as an option
      • Go to your user home folder and select .pdfstudio[version] directory (make sure to show hidden files)
      • Open user.vmoptions file using Notepad app
      • Add -Dsun.java2d.d3d=false
      • Save file
      • Relaunch PDF Studio
    • Add -Dsun.java2d.opengl=true as an option
      • Same steps as above