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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 the constrast, or make the grays more black? I have a computer with Adobe Acrobat 9 Pro Extended installed, Windows 7.

merged by random Aug 4 '11 at 4:31

This question was merged with Adjust PDF Contrast with Adobe Reader/Acrobat? because it is an exact duplicate of that question.

  • I'm tempted to leave this open as the possible duplicate didn't get any useful answer. @Mehper – slhck Aug 3 '11 at 21:07