Rohit Makkar

How to darken PDF text?

14 Feb 2012
Windows
Firefox 9
14 Feb 2012 | Windows | Firefox 9

I downloaded an ebook from Google books by using “Google Books Downloader”. But the text is unclear. Though, I can read it, but I want to know how can I make the text darker?
I use “Adobe Reader X” : 10.1.2