From RGB to CMYK

[Guest_imported]

My first "big" project ... a 24-page monthly newsletter with a 4-page color insert of photos.

The commercial printer scanned in the photos to be used. I edited them, placed them in PageMaker, and took it all back to the printer. The printer told me he will separate the colors.

The printer now tells me I need to convert those photos from RGB to CMYK. How do I do this, please?

Does the conversion take place in the photo editing program (before the photos are placed), or PageMaker?

I have Paint Shop Pro. I also have PhotoShop Basic.

 

[zefir]

Grace: ask the Printer to convert the images RGB-CMYK.
For professional RGB-CMYK conversion you will need
PhotoShop and some experience as well.
The Printer knows his press profiles and he can trim
the RGB source images (copies) in a way that they will
print at least reasonable (always different).
Using CMYK in PM is an additional difficulty, because then
the Color Management System has to be used.
Hope this helps. ---G.Hoffmann