Hello there, paulajean0723.
If you are referring to the company address shown in the Accounts and Settings page, the option to reduce its font size is unavailable. On the other hand, if you're referring to your templates, we can manually change it through an imported form.
We can import customized sales forms and before we can do so, we'll need to turn it on first.
- Go to the Gear icon and click QuickBooks Labs.
- Under the Import Style section, toggle it to ON.
- Click Done.
Let's download a sample form as our reference when customizing a form.
- Still in the Gear icon click Custom Form Styles.
- At the upper-right, click New Style and then Import style.
- Select the form type and then click the Download instruction & samples link.
- Open the downloaded file and enter your company address and reduce its font size.
- Save the file after customizing and let's go back to QuickBooks to import it.
When you'll use this template let's make sure to toggle it first before sending or printing it. Click the Customize menu at the bottom of the transaction.
You can always tag me if you need anything else. Have a great day!