You can try updating or repairing Adobe Reader/Acrobat to the latest version. I've got some steps to fix printing issues, WillowG. The following article has their phone number and hours of operation. If the steps above do not work for you, please reach out to the QuickBooks Online support team so they can either help get this resolved, or escalate the issue if needed. If you let me know the template you're currently using, I can also share the recommended font size.
I'd also like to ensure all guidelines in this article are being followed. If these settings were adjusted, let's put them back to the original setup so that it fits properly. The program will edit the font and placement so that the info fits the window.
Go to the Gear icon at the top right corner of your screen.There's also a setting that can be turned on that helps the program adjust these bill and address fields for you: Should you find that you'd like to change the layout even further, please check out the Import style plug-in. The following article will show you how to navigate the Custom Form Styles screen to change your preferences. I'll do all that I can to help you customize those invoices so that they fit the envelope window.
