0
votes
1answer
217 views

Is there a way to increase the contrast of a PDF that was created by scanning a photocopy in B-W

I've tried opening the Accessibility menu and choosing black background with green font, but it seems this does not work if the document was originally scanned in Black/White mode. Is there any other ...
3
votes
0answers
377 views

How to increase contrast in a PDF file? [duplicate]

Possible Duplicate: Adjust PDF Contrast with Adobe Reader/Acrobat? I have a black and white pdf file of text. But the text is too faint and is difficult to read. Is there a way to increase ...
14
votes
10answers
99k views

Adjust PDF Contrast with Adobe Reader/Acrobat?

We get PDF's from our professor to read for homework but they're often scanned documents, is there a way to adjust the contrast of the text to make it easier to read? Edit: I've got Photoshop but is ...