PDF color space control.

TGB cmyk color space
What does it show?
Returns the color space of elements found in PDF, and it indicates problem, if any.
How to interpret the result?
In terms of printing the PDF contains three important elements:
1. Images
2. Vector graphics elements.
3. Text parts are shown with fonts and not as images in PDF.
Rgb cmyk color space.
All three elements have color spaces: RGB, CMYK, Gray, or some distinct color.
PDF printing office online checker
What does the warning mean?
Rgb color space is located in PDF, which will be converted to cmyk also by the printing office prior to printing.
How the problem could be resolved?
The rgb color space can be converted with the following converter:
Rgb-cmyk conversion.
How to use it?