I recently sent an image to get printed and when it came out, the colors, brightness, and contrast were all off. I want to correct for color inaccuracies before printing the second time around. What's the best way to do this if I don't know what printer they have/are using? Nor do I know what method they are using to print the image. All I have to go by is what the picture looks like on my calibrated monitor, and the picture I received that was looks wrong compared to the original. Can I just adjust the original image to look the same as the printed copy, and then turn around and apply those edits in reverse? Example: Original picture file requires -10 brightness and -5 green color balance to look like the incorrect printed copy. Then take the original image file and apply the reverse, +10 brightness and +5 green, save the edited copy, and send that off for printing. Lastly, I also sent the picture as a PNG in RGB mode which I now found out was a mistake. Could that have been the problem? ... View more