how do i edit out the dark places in a pdf?
how do i edit out the dark places in a pdf? I xeroxed pages from a book, and the xeroxes were not of great quality--lots of shadows where the book opened on the copier glass.
When I had the xeroxes scanned, the dark places turned deep black and made the xeroxed/ scanned texts almost unreadable.
How can I lighten the images in the PDFs so that the text is readable again?
