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Converting Vectors to CMYK

Discussion in 'Corel' started by Clear Choice, Sep 11, 2011.

  1. Clear Choice

    Clear Choice Member

    Dec 9, 2007
    With more digital printing of banners, etc.
    I am finding I need to convert my vector graphics
    to CMYK from RGB for out-sourcing.
    Most vendors require CMYK files.

    Is there a way in COREL (or AI) to globally convert
    the whole vector graphic to CMYK values rather than ungroup
    and convert each individual piece one at a time?

    It's not too bad with small graphics but those made up of
    bunches of pieces and colors...are a PIA and I'm wasting
    time looking for those last 5 or 6 hidden RGB holdouts!

  2. Custom_Grafx

    Custom_Grafx Very Active Member

    Nov 23, 2008
    In AI, just change the colour mode to CMYK?

    File menu, document colour mode -> choose cmyk.

    You're saving to PDF? If so, make sure you check PDF specs with your printer and they'll tell you which profile to use.

    They should be able to use your RGB files though.

    I have recently had a client who said I'm the first printer who didn't say he has to change it to cmyk...

    CMYK is for offset printers who need to make four separate plates, one for each ink. It makes their life a little easier when the file is in cmyk to begin with I guess?

    I'm sure a corel pro will chime in to tell you what to do in corel as well...

    I have a feeling in corel you can just choose cmyk or rgb in the publish to pdf options dialogue.
  3. signage

    signage Major Contributor

    Oct 5, 2005
    The Rip that the printer is using should be doing this converting!

    Now if the colors aren't coming out as you plan then you would need to to the changing picking the colors. In Corel you could use the find and replace under edit.
  4. swplus

    swplus New Member

    Sep 27, 2011
    You could try the Oberon Limit Colors Macro. Works wonders for many jobs. Colours aren't always the best match but good for the most part.
  5. Joe Diaz

    Joe Diaz Very Active Member

    Yeah. Find and replace, then select replace color model. But it shouldn't matter with most rip software.
  6. Roto

    Roto Member

    Jul 19, 2011
    If you are sending it out you probably want to use a PDF? If so use the PDF/X-1a preset this will convert all your colours to CMYK even your bitmaps.

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