Hello there, budi-harto.
I can show you how to add logos and customise them to your liking.
When adding a logo just ensure that the type of image is square-shaped since rectangles don’t work. You can also change the size of the logo. Here's how:
- Select the Gear icon and click Custom Form Styles.
- Find the template you want to edit, then select Edit under the Action column.
- Go to the Design tab, then select Make logo edits.
- Select Show logo, then change the size and placement as you desire. The height and width can’t be changed.
- Click Done.
To learn more about invoices and other sales forms in QBO, consider checking out these articles:
Let me know how this works. I'll be around to help. Take care!