14 Replies Latest reply: Apr 17, 2015 11:14 PM by Boyan M RSS

    RGB v. CMYK issues...

    Bruceluvia

      I'm creating an image in Ps with a transparent background to use as print media in Id. I'm finding that, to maintain my transparency, I can only do this as a PNG document. The PNG format will only allow me to save as in RGB. I need CMYK. Any suggestions?

        • 1. Re: RGB v. CMYK issues...
          Curt Y Community Member

          Recheck the cmyk requirements.  Currently many comercial printers use RBG, and only hi end 4 color printers use the cmyk method.

          • 2. Re: RGB v. CMYK issues...
            Mike Gondek2 MVP

            Save as .psd, has non-lossy compression, and you can place in InDesign.

            • 3. Re: RGB v. CMYK issues...
              Bruceluvia Community Member

              Yes, when I save simply as "Photoshop" I can place it in InDesign but I lose the transparency, i.e. I get a white background. Also, I don't know what you mean by "non-lossy compression".

               

              In CS6 I have multiple Photoshop save possibilities:

              • Photoshop
              • Photoshop EPS
              • Photoshop 2.0
              • Photoshop RAW
              • Photoshop DCS 1.0
              • Photoshop DCS 2.0

              Would it matter to select something other than "Photoshop"?

              • 4. Re: RGB v. CMYK issues...
                Bruceluvia Community Member

                This project will probably require high end printing...

                • 5. Re: RGB v. CMYK issues...
                  MW Design Community Member

                  Try saving as a PDF and placing that in ID. But your PSD should work. In ID, check the box for the import options in the Place dialog.

                   

                  Mike

                  • 6. Re: RGB v. CMYK issues...
                    Bruceluvia Community Member

                    Hi Mike,

                     

                    Thank you! This was quite helpful, as it did indeed work, but it brings me another question...

                     

                    The following indentical versions have all been saved in Photoshop to be use in InDesign for print media:

                    • PDF ver. is 11.3 Mb
                    • PNG ver. is 22.9 Mb <-- will only save in RGB (I need it in CMYK)
                    • TIF ver. was 7.1 Mb <--  this one would not maitain a transparent background and is therfore not useful
                    • JPG ver. was 2.1 Mb <-- also without a transparent background

                     

                    The only version that consistently works and prints well is the PDF.

                     

                    My question is this: Does InDesign care how large (how many Megabytes) my images are? Will my printer care?  i.e. What are the pros & cons of the file size for InDesign and when I take the project to my printer.

                     

                    Please understand that I am a relative newbie to the desktop publishing & graphic design world. I believe I would be catagorized as an "advanced beginner" and a good student.

                     

                    Thank you for any insight you can give,

                    Bruce Swanson

                    • 7. Re: RGB v. CMYK issues...
                      Curt Y Community Member

                      A TIFF should save a transparent background. From a previous post.

                       

                       

                      3. Chris Cox,

                       

                          

                        May 19, 2010 6:57 PM    in reply to Niles Ridgeman 

                      Report

                      There’s no transparency support in tiffs

                      That is not correct - TIFF supports transparency.

                       

                      Some other applications may not support TIFF transparency correctly, but the file format does support it, and Photoshop's TIFF code supports transparency.

                      • 8. Re: RGB v. CMYK issues...
                        c.pfaffenbichler Community Member

                        Yes, when I save simply as "Photoshop" I can place it in InDesign but I lose the transparency

                        You seem to be doing something wrong then.

                        psd supports transparency and Indesign can handle psd files.

                        Could you please post a screenshot with the Layers Panel visible?

                         

                        WIll you pass on the indd file or a pdf?

                        In the latter case working with placed rgb images is OK because one can separate on pdf export (for example PDF/X-1).

                        • 9. Re: RGB v. CMYK issues...
                          conroy Community Member

                          Bruceluvia wrote:

                           

                          Yes, when I save simply as "Photoshop" I can place it in InDesign but I lose the transparency, i.e. I get a white background [...]

                           

                          Make sure Layers is enabled in the Save As dialog when saving to PSD, PSB, TIFF or PDF, otherwise the file will contain an opaque flattened image.

                          • 10. Re: RGB v. CMYK issues...
                            Boyan M Community Member
                            A TIFF should save a transparent background.

                             

                            When I place in InDesign (both CS3 and CS6) a transparent tif image (CMYK) there is a difference between those created in Photoshop CS3 (correct) and CS6 (white background).
                            Obviously there is some difference in the way how both versions of Photoshop save tif files with transparency.

                            • 11. Re: RGB v. CMYK issues...
                              Chris Cox Adobe Employee

                              No, there is no difference in how Photoshop writes TIFF files with transparency.

                              There was a bug in InDesign with how they read TIFF files, and I'm not certain when they fixed that.

                              • 12. Re: RGB v. CMYK issues...
                                Boyan M Community Member

                                I don't think so. Both CS3 and CS6 InDesign behave correctly with placed Photoshop CS3 tif with transparency image files. With Photoshop CS6 ones they don't. It's easy to prove.

                                • 13. Re: RGB v. CMYK issues...
                                  Chris Cox Adobe Employee

                                  I know that Photoshop's TIFF structure did not change (it can't, otherwise it wouldn't follow the TIFF spec and many applications would fail to read the files correctly).  And I know that InDesign had an error in the way they parse metadata from TIFF files that caused InDesign to handle transparency incorrectly.  What changed was the metadata being written, plus the bug in InDesign reading metadata.  InDesign fixed that bug years ago, but I'm not certain which version of InDesign it was fixed in.

                                  • 14. Re: RGB v. CMYK issues...
                                    Boyan M Community Member

                                    EDIT: With the new InDesign CS6 update (8.1) Photoshop CS6 tifs with transparency import correctly now.