I'm hoping this is the right place for this. If not, my apologies
I'm just starting out screenprinting, and I've already reached a dilemma. A band wants me to print a poster, but the poster features a black and white photo of a man. Since the photo is of course not true black and white, and shows up grey in reality, I know it won't burn to a screen. SO, I need to find some way to turn the man into half-tones (is that terminology correct? sorry...) so that I can actually print a transparency and then successfully burn a screen. What is the best way to turn that man into something that I can actually use?
Someone mentioned turning the image into a bitmap, but would I still be able to do that to a single layer of the .pdf without changing the whole image?
Any suggestions would be appreciated!