Hello, @Mahmoud
As I know you can add logo to Invoices, Sales Receipts, etc. You just need:
1. Go to Lists -> Templates
2. Open the type of template you need
3. Click on "Use logo" checkbox in "LOGO&FONTS" section
4. Choose file from your computer ->
5. Upload your logo -> Check how it looks in a preview of template
6. Click "Ok" button to Save changes in Template
You can watch this video which can help you to do it quicker.
How to add a Logo in QuickBooks
Hope it will help you.
Have a nice day!
