Thank you for posting here on the Community page, yosef-solar360-c.
I've got some instructions to share on how you can have an invoice attached in PDF to show on your emailed transactions, together with the attachments that you've included.
We can go ahead in the Settings and activate the PDF Attached feature. The steps below will walk you through the process:
Go to the Gear icon.
Click Account and Settings under Your Company.
Select Sales. Within the Online delivery section, make sure the PDF Attached is ticked.