Which file formats does this RGB to CMYK and photo upscaling tool support?

You can upload JPG, JPEG, PNG, or PDF files. The color conversion tool downloads as JPG, JPEG, or PDF, all of which keep the full CMYK color data with an embedded ICC profile. The photo upscaling tool also offers PNG since its output is always RGB.

RGB to CMYK & CMYK to RGB Converter, Low Res to High Res

Step 1 Upload & configure

Direction

Source file ＋ Drop a file here, or click to choose one No file selected · JPG / JPEG / PNG / PDF supported · Max 10MB

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

Repair detail after upscaling (sharpen edges & texture)

Source file ＋ Drop a file here, or click to choose one No file selected · JPG / JPEG / PNG / PDF supported · Max 10MB

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

About this tool

The Photo is a free browser-based tool to convert RGB to CMYK, convert CMYK to RGB, and turn low resolution photos into high resolution images. Designers preparing artwork for offset or digital printing can convert RGB to CMYK for print-ready files, while anyone with an old or low res photo can upscale it to high res with detail-repairing sharpening.

Convert RGB to CMYK

To convert RGB to CMYK, upload a JPG, JPEG, PNG, or PDF, select the RGB to CMYK direction on the color conversion tab, and run the conversion. The tool separates your image into the four print inks — cyan, magenta, yellow, and key (black) — and lets you download a print-ready PDF or CMYK JPEG.

Convert CMYK to RGB

To convert CMYK to RGB, upload your CMYK file, select the CMYK to RGB direction, and run the conversion. The four ink channels are merged back into screen-friendly RGB values so the image displays correctly on monitors, phones, and the web.

Low Res to High Res: Upscale Low Resolution Photos

Going from low res to high res doesn't have to mean blurry, blown-up pixels. The resolution repair tab upscales low resolution photos to high resolution using high-quality resampling at 2x, 4x, or 8x, with a scale-proportional sharpening pass to repair edges and texture along the way.

Frequently asked questions

What's the difference between RGB and CMYK?

RGB (Red, Green, Blue) is how screens display color by mixing light. CMYK (Cyan, Magenta, Yellow, Key/black) is how printers mix ink on paper. Converting RGB to CMYK before sending a file to a print shop helps you catch colors that will shift or look duller once printed.

Which file formats are supported?

You can upload JPG, JPEG, PNG, or PDF files. The color tool downloads as JPG, JPEG, or PDF — all three keep the full CMYK color data with an embedded ICC profile. The upscale tool also offers PNG since its output is always RGB.

How do I turn a low resolution photo into a high resolution one?

Open the resolution repair tab, upload the photo, pick a 2x, 4x, or 8x scale factor, and run the upscale. High-quality resampling enlarges the image and a sharpening pass repairs perceived detail and edges.

Is this tool free, and are my files kept?

Yes, it's free to use. Uploaded files are processed on the server for this session only and aren't kept beyond that.

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