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 ...
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 ...