[ronpietrantoni]

Long press a song to select it on the library screen, then tap "Edit Song" in the action bar. Go to the Files tab, tap the three dots next to the file in the list and tap "Image Correction". MobileSheets is going to need to first render an image for every page in the entire PDF. It then will process every one of those rendered pages to apply the image correction to it. Just be aware that if you do this with a 274 page PDF, for example, it's going to take an extremely long time to process every page. 

Mike

Hey, Mike!

Does that only work with the regular Android app? I just discovered this function - and it blows away the image correction I've been doing with ABBYY FineReader! However, in my e-ink app, I can't find a way to do a range of pages. I was just sent a dozen songs for a workshop (anywhere from 8-18pp) and I needed to lower the Brightness of ALL of them by 15. Now, one feature request would be a way to type that number, instead of tapping the <minus> sign 15 times. But, even better for me: a way to do all 18 pages of a song without having to adjust each individual page!