won't print black
The pdf came to me with gray copy. I changed it to black in Preferences but the printout was still gray. I have made every change I could find online: printing it as image, color as contrast b on wh, printing as custom color, changing advanced printing options, printing as black and white. Nothing makes a difference. Why does it insist on printing in the original gray and is there anything I can do to make it print the copy in black?
Other files print out correctly.