Features Story Discord Pricing
Automatic imposition Aldo puts your pages on the sheet in the right order. Fold, staple, read in order. CMYK conversion RGB to CMYK with a FOGRA39 profile. Preview the printed colour before you commit. Bleed & safe zones Aldo adds bleed and respects your printer’s margins. Clean prints, no white edges. Photo library & EXIF Sort your photos and batch-edit captions and credits. EXIF fills in the rest. 3D preview Flip through your book in 3D, rendered from the exact PDF you will export. Formats & bindings A4, A5, A7 booklet, A4 sewn, and more on the way. Templates that fit any format and binding.
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Feature: Colour

RGB to CMYK, so your colours print the way you see them.

Your screen glows in RGB. Your printer thinks in CMYK. Aldo Reborn translates your photos with a real FOGRA39 profile and shows you a soft-proof first. What you see is what prints.

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The Aldo Reborn editor on macOS, showing the RGB/CMYK toggle and export settings

Why prints come out dull and muddy

Your photos live in RGB. That is light, millions of glowing colours. A printer only speaks CMYK, four inks and nothing more. Hand it raw RGB and it has to guess the translation. Blacks go muddy. Electric blues fall flat. A bright sunset comes back the colour of weak tea. Aldo Reborn does the translation properly, with the profile your printer expects.

How it works

Real CMYK conversion Each photo is converted from RGB to CMYK. Aldo uses a perceptual intent and black-point compensation, the same approach Photoshop uses.
FOGRA39 in the file The standard European print profile sits inside the PDF as a PDF/X-3 output intent. Your printer knows exactly what it is getting.
See it before you print A soft-proof shows the colour you will actually get on paper. No surprise when you open the printed copy.
Crisp page numbers Page numbers print in black only (K). They stay sharp, with no colour halo creeping in at the fold.

CMYK & print export, compared

Aldo Reborn
InDesignAffinity PublisherCanva
✓ ICC CMYK conversion (FOGRA39, perceptual + BPC)
✓ Some of them
✓ CMYK soft-proof (RGB / CMYK tab)
✓ Some of them
✓ PDF/X-3 compliant (embedded FOGRA39 profile)
✓ Some of them
✓ Automatic pagination / K-only black
✕ None of them
✓ Embedded JPEG, no recompression (resample only if oversized)
✕ None of them
✓ DPI badge / low-resolution warning
✕ None of them
See the full comparison

Frequently asked questions

What is CMYK and why does it matter for printing?

Your screen makes colour by mixing red, green and blue light. That is RGB. A printer makes colour by mixing cyan, magenta, yellow and black ink. That is CMYK. They are two different languages, and ink cannot reach every colour a screen can. So a photo has to be translated with care, or it prints dull. Aldo Reborn does that translation with the profile printers expect.

Will my colours change when I convert to CMYK?

A few very saturated screen colours, like electric blue or neon green, sit outside what ink can reach. Those shift a little. Aldo uses a perceptual conversion, so your photos still look natural. The soft-proof shows you what to expect before you commit.

Which colour profile does Aldo Reborn use?

Coated FOGRA39 (ISO 12647-2). It is the common standard for European printers. Aldo embeds it directly in the exported PDF as an output intent.

Do I have to convert my photos to CMYK myself?

No. Drop in your RGB photos. Aldo converts them on export. There is no trip through Photoshop and back.

What is a soft proof?

A soft-proof simulates on your screen how the colours will look once they are printed in CMYK. You can catch a dull or shifted colour before you print, not after.

Aldo painting a printer on a canvas, palette in hand

Print colours you can trust

Aldo Reborn is out on macOS. It converts your photos to CMYK on export, so the print matches what you saw.

Download Free trial