Anybody familiar with those QR codes.
I have to buid a poster and include one of those code. Someone supplied me with the image of the code but it is only 288 pixels wide.
Can I upsample it to 1200dpi, bitmap tiff?
I often recieve QR codes as RGB .png files at 72 dpi. It is preferable to get hi res or vector, but when I can't (client can't/won't) I have uprezzed them in grayscale/bitmap without problem as they are grids. Just do not rotate them. Keep them plummed Vert/Horizontal....
And alway double check with your smartphone/ipod touch/reader...
Europe, Middle East and Africa