Posted 18 February 2018 - 11:35 AM
There is no simple answer to your query without knowing whether the PDFs were generated initially as text PDFs (as in, were typed or otherwise fed the text which was formatted) or are image scanned PDFs of text material.
The former are easy to manipulate via any number of methods, the latter are not.
Also, depending on how much text you're trying to "hack out" and whether you are trying to re-integrate the files that have had text trimmed out PDF Split and Merge can come in quite handy.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
. . . the presumption of innocence, while essential in the legal realm, does not mean the elimination of common sense outside it. The willing suspension of disbelief has its limits, or should.
~ Ruth Marcus, November 10, 2017, in Washington Post article, Bannon is right: It’s no coincidence The Post broke the Moore story