All printed matter is printed after the color model CMYK (Cyan, Magenta, Yellow, Key/or black).
CMYK is a color model that reflects light, whereas sRGB (red, green, blue) is a light-based color space - as seen on your screen.
The colors seen on your screen can't match your printed matter exactly - but converted to the appropriate CMYk-profile you'll get the most realistic result.
Do you see the difference?
If you're holding the catalogue right now, try and compare the images from page 26-29 with the converted images – can you see the difference?
All images in your catalogue is printed with the CMYK color model, and all images on your screen (even though they are converted to CMYK) is shown as sRGB.
The light-based color model RGB consist of 3 base colors
red, green and blue. When these colors are adjusted, you can blend them into differente hues and saturations. Turn them all the way up, and you'll get a clean white.
There are different profiles for each model. E.g. sRGB, Adobe RGB and Pro Photo etc.
All screens show you there containt through RGB, which you can often actually see if you look close enough. So if your making something for digital use (i.e. in Adobe Photoshop), remember to use a RGB color space
Your printer uses CMYK
So - CMYK is for printed matter . Therefore the colormodel (coated or uncoated) won't be able to reach the same bright nuances as the light-based RGB.
Imagine painting a picture with your base colors (red/magenta, blue/cyan, yellow and black). The more color you use, the darker the painting gets, right? That's the CMYK-model. RGB on the other hand, is getting lighter the more color you add. Turn your screen of, and all the colors go away. Turn it on, at it creates images with light.
Because CMYK 'removes' color the more you add, it's called a substractive color space.
Printed matter with RGB elements?
We accept PDFs with RGB elemts - but remember that when printed it's converted to CMYK - so your bright colors might lose saturation.
Try and compare the images from your catalogue, agian and see the difference.
If your completely confident in your knowledge of color spaces and profiles, go ahead and convert it to the correct CMYK profile.
How will it look in CMYK?
If you're not converting your RGB files, you may get totally surprised by the outcome - but convert to the correct CMYk profile, and you'll have a better idea.
You should also keep in mind, that converting from sRGB > CMYK won't necessarily get the same result as e.g. Adobe RGB > CMYK. Ask us, if in doubt.
Are you confused? The safest path is choosing “No Colour Conversion” and “Include All Profiles”, when exporting a PDF.
We'll conbvert it correctly. Remember to ask us, if you want to see the result..