An old problem when processing images is, that a print-out often looks completely different to the on-screen display. This is due to the fact, that printers usually are not able to print as many colors as a computer monitor. Therefore several hardware and software companies have founded the ICC (International Color Consortium). Goal of the ICC was and is to define a standardized way for a uniform appearance of images and graphics and different output devices (printer, screens, ...).
The solution of the ICC are color profiles. In the ideal case every device reading or displaying an image should have an associated color profile. The color profiles are describing how a certain device interprets a given color.
Usually you proceed like this:
If all 3 points are fulfilled, a scanned image printed or displayed on-screen looks like the original - at least in theory. In practice there are two problems:
The support of color profiles in PhotoLine is described in chapter 7.6.15 "Set Color Profile", chapter 7.6.16 "Convert With Color Profile" and in chapter 7.10.1.36 "Color Management".