In the Format dropdown menu select Adobe PDF (Print) in InDesign or Adobe PDF (pdf) in Illustrator. 4. Click Save. 5. In the Export (Save) Adobe PDF menu, select [High Quality Print] from the Adobe PDF Preset dropdown menu. 6. Select PDF/x-3:2003 from the Standard dropdown menu. 7. Select the Output tab on the left.
In Illustrator go to File > Document Mode > CMYK Color and in Photoshop go to Image > Mode > CMYK Color. Then change the color to 100% Black and export the PDF again. Share. Improve this answer.
A CMYK image converted in RGB produce the same colors of a CMYK image (not converted), either on RGB or CMYK printers. An RGB image printed on RGB printer, can access to all the RGB gamut and that's why is not the same thing. The CMYK gamut is contained in the RGB gamut but not the opposite, especially if you print on plotter or printer with CMYK and RGB: An Introduction. RGB is the color of physics and of your computer monitors. It is additive color. In this system, red plus green plus blue give you white. This is how your monitor works. If all three elements of a pixel are at their maximum value, you see white. Black is the total absence of color. CMYK is the color of traditional Description. A CMYK color specification, used where a color object is required. If the color space of a document is RGB and you specify the color value for a page item in that document using CMYK, Illustrator will translate the CMYK color specification into an RGB color specification. The same thing happens if the documentโ€™s color space is . 128 136 7 66 331 494 352 399

how to convert cmyk into rgb in illustrator