Getting rid of yellow background in vintage document

[flyboy]

Hi,
i have a PDF of a vintage document circa 1840 and am about to print it. There is a yellow colouration on otherwise B&W pages. Is there a way to eliminate it during printing?
I have an Apple computer BTW

 

[Ink stained Fingers]

Can you print in B/W mode and raise brightness to eliminate the gray background, and you may increase the contrast as needed in the driver .

 

[flyboy]

Thanks very much Ink Stained Fingers !
I will keep that in mind.

I apologize as i thought i had posted this last night.
I answered my own question. I brought it into PDF Studio Pro, then searched online for the manual and found a video that described how to and voila problem fixed. Previously i was a bit intimidated by the program and thus never use it but i found a tutorial.

i appreciate your kindness..