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RGB to CMYK Converter — Convert RGB to CMYK Online

Free, browser-based RGB to CMYK conversion for print-ready JPG, PNG, and PDF files — no signup, no software to install.

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Step 1 Upload & configure
Direction
Source file

Converts using a standard color-separation formula and embeds a print CMYK ICC profile. After processing you'll move to a download step with JPG, JPEG, and PDF options.

Step 2 Preview & download
Source
Preview appears here
Output
Waiting to process

Download as
Step 1 Upload & configure
Scale factor
Source file

Uses high-quality Lanczos resampling plus a scale-proportional sharpening pass. After processing you'll move to a download step with JPG, JPEG, PNG, and PDF options.

Step 2 Preview & download
Source
Preview appears here
Output
Waiting to process

Download as
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Convert RGB to CMYK, free and online

This RGB to CMYK converter runs on the server and streams the result back to your browser — upload a JPG, JPEG, PNG, or PDF, and it separates the image into the four inks a printing press uses: cyan, magenta, yellow, and key (black). It's built for designers, print shops, and anyone prepping artwork for offset or digital printing who needs a quick RGB to CMYK conversion without opening a full design app.

How to convert RGB to CMYK

Open the RGB to CMYK / CMYK to RGB tab above, upload your file, make sure the "RGB → CMYK" direction is selected, and click Run Conversion. Once it's done, pick a download format: JPG, JPEG, and PDF all keep the true CMYK color data plus an embedded print ICC profile, so they're safe to send straight to a print shop or open in Photoshop.

Why convert RGB to CMYK before printing?

Screens display color as RGB light, but printers lay down CMYK ink. Some RGB colors — especially bright blues, greens, and neons — can't be reproduced exactly in CMYK and will look duller or shift once printed. Converting to CMYK ahead of time lets you see roughly what the printed colors will look like, catching surprises before the file goes to press.

Frequently asked questions

Is this RGB to CMYK conversion print-accurate?

The output carries a generic coated-paper CMYK ICC profile so color-managed software has something concrete to interpret it with. It's not your specific print shop's own characterized profile though — for color-critical professional printing, ask your print shop whether they want their own ICC profile applied on top.

Which formats keep the CMYK data after converting RGB to CMYK?

JPG, JPEG, and PDF all preserve the 4-channel CMYK data plus the embedded ICC profile. PNG isn't offered as a download here since the PNG format can't store CMYK at all.

Can I convert a multi-page PDF from RGB to CMYK?

Yes — every page is converted, and downloading as PDF keeps all of them. Downloading as JPG or JPEG only exports the first page.

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