I created a very large banner that I wanted to have printed. However, the resolution is only 50 pixel per inch. I need it to be about 150 - 200 px per inch, but I keep getting errors that the size it too large.
The banner is a dimensioned grid, so the dimensions are critical. (Each box in the grid is 8" x 4")
I need someone to revise this file to a higher resolution and keep the overall dimension of the grid and banner the same.
Attached is the file.