In the preferences interface of Adobe Acrobat DC, a PDF editing software, you can change the PDF background to green. Please refer to the following steps for specific operations. The demo software is Adobe Acrobat DC.

1. First, open a document with Adobe Acrobat DC software on the computer, as shown in.

2. Then click "Preferences" in the drop-down page of menu option "Edit".

3. Then, in the window that appears, click the Accessibility option.

4. In its page, set the background color of the page to green, and then click OK.

5. After completing the above settings, you can change the PDF background to green.