CreativePro Forum

Return to Member Forum

• Author
  Posts
• • June 25, 2013 at 6:45 am #34057
    Anonymous

    Inactive

    Hi All,
    I’ve got some questions about the export of RGB black from InDesign CS3, based on the different color profiles selected.

    I am in Europe and I have synchronized my CS3 by using the Europe General Purpose 2 preset in Bridge.
    I’ve got an InDesign document in which I have placed an RGB image with a RGB black (#000000) background. I want the background of my InDesign document to match the black background color of the image, so that there are no visible edges in my printed document.
    When I use the default [Press Quality] export preset from InDesign the destination profile is set to SWOP v2. I thought that for a European printer the FOGRA27 setting would be better.

    I’ve tried exporting my file in both SWOP and FOGRA. In SWOP the RGB black background of my image is exported as C=75 M=68 Y=67 K=90, but in FOGRA it is C=86 M=85 Y=79 K=100.

    Which color should I set the background of my document to, and which profile should I use to export my PDF to ensure that the printed document will have the exact same color black background as the images, so that I don’t get any edges? Can I simply use a swatch with the same CMYK values as the black in my preferred export profile?

    Another issue is that my printer advices not to use any colors with a coverage of more than 300%. The SWOP black has a coverage of exactly 300%, but the FOGRA black has a coverage of 350%.

    Any advice would be much appreciated!
    Kind regards,
    Chris

  • June 25, 2013 at 11:13 pm #34063
    Gert Verrept

    Member

    Chris,

    Correct settings can be found at http://www.vigc.org or eci.org. They both have usefull info on how to export correctly and which settings to use. The VIGC-site has some awesome free things to be used in cs. You can find settings with use 220%, 260% coverage till 320%. You’ll see no difference once printed. Instead of using Europe General purpose, create your own standard, I normally use these color settings (cs6): srgb; for cmyk=ISO Coated V2 300% (ECI; for color management I use rgb=preserve profile (because you better have a profile than non at all); CMYK=preserve numbers; click “use blackpoint compensation. If you export to pdf/x be sure to set the transparancy to GWG2400 (which can be found on the sites too). I would still try to convert the image to cmyk in Photoshop and then work further in CS in CMYK. That way, the color difference can be avoided by using the same “black” before exporting.

  • June 26, 2013 at 3:28 am #34065
    Anonymous

    Inactive

    Hi Gert,

    Thank you for the tips. I must confess I am quite new to actively managing my color profiles. (Until now I had only used the default Adobe settings.) I have installed the ISo Coated V2 300% profile and set up my color management as you suggested. However I cannot figure out how to install the GWG2400 tansparency flattener.
    Because my local copy shop, where I sometimes print some single posters, asks for flattened files I’d like to have the best setting for this also. I currently use Adobe CS3’s standard flattening, but I’d be interested in trying out the GWG2400 settings. I found this page explaining hot to get it: http://www.digital-engineer.net/archive/entry/indesigns-hidden-transparancy-flatteners/ , but when I search http://www.certifiedpdf.net for ‘SheetCmyk_1v3.pdfs’ I cannot find it. Is there another way to install the GWG2400 transparency setting?

    The reason that I use the RGB images in my InDesign document is that thet are .PSD images which I want to be able to change at a later point, and the gradients end effects come out better when the image is RGB, only to be converted to CMYK at the very last export to PDF. What I did now is to create a RGB black swatch in InDesign to use as my background color. Upon export to PDF it gets converted to CMYK in the same way as the RGB black from my images does. This seems to work, but I don’t know if there is anything against using RGB colour swatches in an InDesign document destined for print.

    Kind regards,
    Chris

  • June 26, 2013 at 11:37 am #34071
    Gert Verrept

    Member

    Chris,

    Download the sheetCmyk1v3.joboptions file (gwg.org). Save it on your disk open Indesign go to pdf presets click Define, click LOAD, select the .joboptions file and it installs itself with the gwg_2400 settings. Second solution: create a flattener preset. Goto edit menu transparancy flattener presets, click new, select the next settings: raster/vector=100%; line art=2400 and below it fill in 600. Save the preset. You can then use it in your own pdf presets.

    gert

• Author
  Posts