I have a InDesign doc that I need to specify 100% black for print. The doc has a image that is a black and white qr code, text and a few other images. I changed the text to (black) but for some reason the qr code isn't changing to C=0 M=0 Y=0 K=100 I don't know how to specify that the image be (black). Is there a way to set the doc up to read black like this C=0 M=0 Y=0 K=100 on the entire doc? When I send it to the printer they say that the qr code is not reading as (black).
Thanks for any help in advance!
Open the qr code in Photoshop and convert it to grayscale.