Hi there gracec24,
It sounds like you're unable to scan documents to add photos in the Notes app. We're glad you've joined us in Apple Support Communities, and we can provide some guidance.
To start, you'll want to be sure you're accessing this feature from either the iCloud or On My iPhone folder in your Folders list in Notes. Third-party accounts, like Gmail or Outlook, won't show the option to scan a document or add a photos in Notes.
If you're viewing the Notes list, tap the arrow next to 'Folders' at the top left corner of the screen. Learn more in the 'Create folders' section here:
Use Notes on your iPhone, iPad, and iPod touch
Also, have a look at the support articles below to find out more about scanning documents and adding attachments in Notes:
How to scan documents on your iPhone, iPad, or iPod touch
Add attachments to notes on iPhone
We hope this provides some clarity.
Cheers.