Adobe Scan is a scanner app for iOS, as its name suggests. You can use it to scan documents to PDF on iPhone. It is easy and quick. Best of all, it is free. Launch the scanner app on iPhone, press the shutter button to capture, then preview and save the PDF files on your iPhone. How about images, pictures downloaded from websites, received from your colleagues and friends, screen captures, or other existing photos already saved in your Camera Roll? This iPhone scanner app allows us to import these image files from Photos app or Camera Roll and turn them into PDF files. In this way, you can also merge multiple images, pictures, screenshots into a multi-page PDF file. Check out the details below.
Get this scanner app here. When it initially launches, the Camera opens and it detects documents automatically.
Tap the Image icon at the left bottom, your latest photos will be displayed. Tap Show More Documents or Show All Photos…. to find more photos, images, or screenshots from your Camera Roll or photo albums. Select and add them to the scanner app. You can then preview, edit and save the image files as PDF files. Optionally you can rotate photos, reorder them, crop photos, add filters, see below screenshot.
Finally send the created PDF document through email, link, or save it to the Files app, iBooks, PDF readers or file manager apps you have on your iPhone.