🚀 go-pugleaf

Hi all,

I downloaded a quizz (multiple choice questionnary) to prepare an exam. 
This consists of a PDF file that shows questions and proposed answers in 
black, followed by correct answers in red, by default on white background.

I should like to avoid seeing the answers before reading the questions, 
and it appears that to scroll carefully is not sufficient due to the 
answer delay. In the preference settings (edit menu of version 7.0.5 of 
Acrobat Reader) I saw a way to do this, that consists in displaying the 
text in white on red background, specifying to only change the color of 
the black text.

As I have to spend some time on this, I should like to obtain the same 
results with less aggressive colors. The document is content-protected, 
I cannot extract its text, either by copying or by printing to text.

Any idea to achieve this goal ?

Second question : After reading a question and guessing the answer, I 
should like to verify it, so I have to toggle back to normal contrast. 
Any quicker way for this than to depress Ctrl K, check or uncheck the 
color replacement and validate ?

I use Windows XP Home.