I'm making a PDF/X-1a, from a CS6 indesign file, for a print magazine that will be illustrated with images of everyday objects. The images are made from scans and photographs. There is no line art and it will be printed by a commercial offset printer.
What is the exact sequence I should use in PS (don't laugh, I use CS3) when changing a PSD or TIFF from RGB to CMYK and flattening all layers?
Currently, if I have a TIFF, I make my layers and tweaks in RGB (because I use the file for Web, too) and then for print I would flatten and then I would switch to CMYK, 8 bits. Is this right, or do I change the image mode first and then flatten second?
I have this same question of proper step sequence when taking a PSD and saving it as TIFF for print output.
If I want to use a PSD for a print magazine (again, I'm only sending the printer a PDF/X-1a) I was told by a graphics friend that I should save it as a TIFF.
When I open a PSD file to save as a TIFF, at what point do I change from RGB to CMYK, when do I flatten? Do I do this first on the PSD side, or on the TIFF side?
When I change from RGB to CMYK, I see a message: "Changing mode will discard some adjustment layers, change them anyway?" I can either hit Merge or OK. Which do I choose?
Also, a PS dialog box asks what image compression, pixel order, byte order and layer compression I want. It defaults to LZW. Do I choose None?
Apologies if my questions are too jumbled. I'm, trying to be clear. Thanks for any insight.