I recently scanned several hundred photos with a simple Canon PIXMA scanner. Their app is horrendous but it allowed me to connect my phone to the scanner and w

I recently scanned several hundred photos with a simple Canon PIXMA scanner. Their app is horrendous but it allowed me to connect my phone to the scanner and when you became used to the process you could scan one photo every ~10 seconds. The only movement you did was changing the photo in the scanner and hitting the Scan button. Until you photos have a different format. I tended to save those in one pile and do them in one go because the app was just so bad, specifically when all you wanted to do was change the format. But this is an old method, you could do this 10 years ago in the exact same way I bet. After the scanning I had to run a script that cropped out all the white around some of the photos. (ImageMagick convert using the -trim and -fuzz options)