Affinity Publisher - Problems when changing color profile

[akl_gaarden]

I have some problems with colours when changing colour format. From time to time i have to adapt designs made for web to print or the other way around. 

I'm used to programs like photoshop that do a fairly good conversion so that the colours look and print mostly the same after conversion. When I do it in affinity publisher the colours are all over the place. The results are the same whether I just export in another colour format, convert the document or paste it into another document with another format.

This file was created in RGB:

 

This is what it looks like when i change to CMYK:

...as you can imagine the final print from this is not close to what I want.

I have done a bit of testing and the results are similar. I first thought that it was worse when working with transparencies but even flat colours are changed more than I would expect. Some blending modes are worse though: see the blue shape that is almost black in the CMYK version.

Is there any way to get better results or am I just doing the wrong somehow? I can export as an image and the convert in PS but that is not optimal in any way.

I hope you can help

[thomaso]

The only issue I can think of without seeing your files are your settings of color profiles: 1. for placed files, 2. for the .afpub document and 3. for export.

Also your export colorspace and profile setting is relevant and can shift colors. Finally the viewer app (for the exported PDF) also can shift colors, e.g. if it doesn't recognize the profile in your PDF. To make sure it will be used for viewing the PDF, export as PDF/X-1 to force an 'output intent' get written into the PDF.

[akl_gaarden]

Thank you.

 

I still see a much greater shift in colours than I would expect when changing modes. For now I will just have to work around it and adjust it as I go.