I recently had to create a 60 page color booklet for a University on a very tight schedule. The booklet was to be printed to press. I was not given any specifics as to the output specifics.
So, I was creating vector graphics in Illustrator as CMYK, and importing them in InDesign. And receieving e-mail with bitmat images in formats from JPG, TIFF, PDF, PNG. and I would place them directly into InDesign. If I had to do any photoshoping of a picture, I would conver the sRGB original to CMYK.
I have been reading discussion about color management workflow. But I am still not clear what I should have been doing with the roughly 100 image files sent me to be in the booklet?
Somewhere I read the way I did it was okay, as long as I let InDesign handle image conversion on the output? Is this correct? When I went to make my Package for the printer, I did get the Triangle "warning" that some images were sRGB. The PDFs looked great.
What should I have done as all these images came in? It was a crazy deadline. I can't imagine having to open every image in Photoshop -Convert to CMYK-Adjust colors and resave and import?
And what do you do if you don't know the specific output printer? I default to SWOP.
So, will InDesign, convert any incorrect (sRGB etc) images on the final output to the proper colorspace to be printed properly?
InDesign will convert RGB to CMYK when you're exporting as PDF files IF (big IF) you choose PDF/X-1a as your PDF preset. Some of the other PDF presets (e.g., Press Quality) don't do this conversion. Their color conversion setting is No Conversion.
SWOP is a reasonable output assuming your printer didn't give you a customized CMYK profile to install with instructions to install it (most North American printers don't do this).
So, PDF/X-1a is the way to go for PDF. Is this true for the other "x" X-3a, X-4a
For this project I just delivered the InDesign file and "Package" so I guess it is up to them to export to their settings?