Another handy tutorial video from Apple explains the process of using the Notes app on your iPhone or iPad to scan documents directly to that note.

Scanning your business documents allows you to edit them as image files on your computer. You can scan your documents directly into Adobe Photoshop by using the TWAIN ...

When you scan a document or photo, you can send the scanned item to others via email as an attached file. If your scanner does not allow you to directly email the item, use Windows Fax and Scan, a ...