Hello, precast.

Thank you for posting your concern here in the Community. I know a way how you can change the font size in QuickBooks Desktop (QBDT).

Here's how:
 

1. Hit Edit in the upper left corner
2. Tap Preferences
3. Click on Display
4. Type Font Size in the search engine and then Make Font Bigger
5. Edit your available options

Additionally, I've added this article that'll help you personalize and add specific details to your report: Customize reports in QuickBooks Desktop.

Please do get back on this thread if you need further assistance in managing QuickBooks. I'm always here to help.