Friday, March 26, 2010

RGB - CMYK problems

Good Day,

I have bought Adobe Creative Suite 4 and this document is generated with Adobe InDesign CS4

my document looks like that:

this is a advertisment which is for a journal

in my document i have transparency an a table with some information........

when i export this document to PDF and send this to a journal they call me every time that my document is a RGB-Document.

i dont find the menu where i can turn this to CMYK

thanks

yours sincerely marrickdaimen

RGB - CMYK problems

You need to make sure your swatches are all CMYK and not RGB

Go to Window%26gt;Swatches

From here you can see that some swatches are CMYK some are RGB and some are Spot colours (spots print on separate plates for accurate colour reproduction where a prepared ink is used rather than a combination of CMYK)

To change the RGB swatch you will need to Edit the swatch and change it from RGB to CMYK

Then when you export the PDF you will need to make the images in the document into CMYK, but you want to preserve your swatches so they aren't converted to CMYK, becuase the last thing you want is for text to be converted to CMYK where black is made into parts of CMY too.

So when exporting your pdf you will need to go to the Output section of the Export to PDF dialog box. From here you have Color Conversion and Destionation.

Choose Convert to Destination (Preserve Numbers) %26lt;preserve numbers preserves the swatches you have made in your document%26gt;

From destination you have many choices. I use Coated Fogra 39, but there are many settings. It would be best to contact your printer to find out what profile to use.

The one's that have Web are for Web Presses (like they use for newspapers). Web presses are generally used for extremely large quantites.

The sheetfed is for normal litho printing where sheets are stacked and fed into the printer.

Euroscale is for Euroscale inks, which are rare these days, as far as I know it was replaced by ISO standard of Fogra.

The coated and uncoated after each name refers to the stock of paper. If it's bond paper it's uncoated, if it's silk it's coated. Your printers can let you know if the paper is coated or uncoated.

RGB - CMYK problems

you don't need to change all your swatches to CMYK

but when you export your PDF in the out put panel.

make sure the color conversion is set to ''convert to destination'' the destination profile is a CMYK profile. preferably one that the printer has supplied or recommended.


What buko said, with the added advice to get rid of spot colors. It's a rare magazine that will print spots. From the swatches panel menu select Ink Manager, then click the ''Convert All Spots to Process'' box.


Yeh what Buko said

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