What Print-Ready Actually Means (And Why a Phone JPEG Will Not Cut It)

By The Printvine Team 26 June 2026 5 min read

You have a logo, a photograph and perhaps a flyer somebody built in Word. It looks perfectly respectable on your screen. Then the printer replies: “This is not print-ready—can you send proper artwork?”

That phrase can sound like a vague quality judgement. It is not. Print-ready describes a file that already contains the resolution, colour setup, bleed, fonts and page geometry needed for production. The printer can process it without rebuilding the design or guessing what you intended.

The same flyer supplied as a JPEG preview and as print-ready artwork Two identical A5 flyer designs are compared at the same final size. The JPEG preview has visibly stepped edges and an unknown production setup; the print-ready PDF is sharp and properly prepared. SAME DESIGN · VERY DIFFERENT HANDOVER JPEG PREVIEW PRINT-READY PDF OPEN STUDIO SATURDAY · MANCHESTER OPEN STUDIO SATURDAY · MANCHESTER Looks complete on screen Compressed · RGB · setup unknown Built at the finished size Sharp · colour-managed · fonts locked THE IMAGE MAY MATCH · THE FILE DOES NOT
A JPEG is not automatically unusable. The problem is that an ordinary image file rarely carries the complete production setup.

Resolution: enough pixels at the final size

Screens are forgiving because they show an image small and lit from behind. Print exposes every missing pixel. For most close-viewed commercial print, placed photographs should be approximately 300 PPI at their final printed size. People often say “300 DPI”; strictly speaking, PPI describes the image while DPI describes the printer’s output.

Pixel dimensions matter more than the resolution number saved in a file. An A5 page at 300 PPI needs roughly 1,748 × 2,480 pixels before bleed. A square 1,080-pixel social image stretched across the full 148mm width reaches only about 185 PPI. It may look clean in an Instagram post and visibly soften in print.

Low-resolution and print-resolution images compared The same diagonal mark is shown with large visible pixels at 72 PPI and with a smooth sharp edge at 300 PPI. RESOLUTION IS JUDGED AT THE SIZE IT WILL PRINT ABOUT 72 PPI ABOUT 300 PPI Large pixels become visible when the image is enlarged. Enough pixels preserve a clean edge at the same print size.

Colour: prepared for ink, not emitted light

Phones and monitors create colour with red, green and blue light: RGB. Commercial printers usually reproduce colour with cyan, magenta, yellow and black ink: CMYK. Ink cannot reproduce every luminous colour a screen can display, so highly saturated blues, greens and oranges may become quieter on paper.

Print-ready artwork is prepared with the intended printing process in mind, using CMYK or specified spot colours where appropriate. That makes conversion controlled and predictable—but no responsible designer should promise that every screen colour will print identically. Paper, ink, press calibration and lighting all affect the result. For colour-critical work, ask the chosen printer about proofing and profiles. Our dedicated CMYK vs RGB guide explains this in more detail.

Bleed, trim and safe area explained A full-bleed flyer design continues to the artwork file edge. A dashed line shows where the printer trims it, while a subtler inner guide marks the safe area for important text. THE DESIGN CONTINUES PAST THE FINISHED EDGE OPEN STUDIO · MANCHESTER ONE WEEKEND ONLY SATURDAY 10AM–6PM · NORTHERN QUARTER 01 · ARTWORK EDGE The colour and image continue to here. 02 · TRIM LINE Usually 3mm inside the file edge. 03 · SAFE AREA Important text stays well inside.
Bleed protects the edge; the safe area protects the information.

Bleed: extra artwork for a clean cut

If colour or imagery reaches the edge of the finished piece, it must continue beyond the trim line. This extension is called bleed. UK commercial printers commonly ask for 3mm on every side, although the chosen printer’s specification always takes priority.

Trimming is accurate, but no blade lands on a mathematical line every single time. Without bleed, tiny variations can expose a white sliver. Bleed is deliberately cut away. Important text and logos should also sit inside a safe area so the design does not feel cramped or risk clipping.

Fonts and layout: locked so nothing shifts

An editable Word, PowerPoint or design file depends on the fonts and software installed on the computer opening it. A missing font can substitute; a line can wrap; one altered paragraph can push the rest of the page out of place.

A print-ready PDF fixes the page geometry and embeds or outlines the fonts as appropriate. The printer receives the design you approved rather than a file that can quietly recompose itself.

The right file format

For most commercial jobs, the dependable handover is a correctly exported PDF—often to a PDF/X standard requested by the printer. It can preserve page size, bleed, colour information, vector artwork, high-resolution images and embedded fonts in one file.

“Flatten everything” is not a universal rule. Modern print workflows can handle transparency, layers and colour-managed content when exported correctly. The safest rule is simpler: follow the receiving printer’s specification and supply a PDF built for that workflow.

Five checks for print-ready artwork A print-ready PDF passes checks for size and bleed, image resolution, colour, fonts and the correct export format. A FIVE-POINT PREFLIGHT BEFORE THE FILE LEAVES 01 · SIZE + BLEED Built to the trim size. The page dimensions are exact, with bleed wherever artwork runs to the finished edge. 02 · RESOLUTION LOW-RES EDGE Enough pixels to print. Images are checked at their actual placed size—not merely by the number in file properties. 03 · COLOUR CM YK Prepared for the process. Colour is converted deliberately for the chosen printer, stock and proofing requirement. 04 · FONTS Aa Typography cannot shift. Fonts are embedded, outlined or handled so the approved line breaks stay exactly put. 05 · EXPORT PDF/X One dependable handover file. Exported to the receiving printer’s specification, with the approved page intact. PAGE SIZE BLEED COLOUR + FONTS PASS ALL FIVE and the printer can process the job without rebuilding the design.

So why does “just send the JPEG” go wrong?

Because a casual JPEG usually solves only one part of the job: it contains an image. It may have enough pixels—or it may not—but it does not by itself guarantee the correct page size, bleed, colour setup, font handling or export standard.

A phone photograph can be perfectly usable as source material when it has sufficient resolution and has not been compressed by messaging or social media. A screenshot of a logo is still a poor substitute for the original vector artwork. The useful distinction is not “JPEG bad, PDF good”; it is source material versus finished production artwork.

The short version

Print-ready means: correct final size, suitable image resolution, production-aware colour, bleed where needed, locked fonts and a correctly exported PDF. Miss one and the result can be blur, unexpected colour, white edges, shifted text or a rejected file.

Printvine is design-only. When we create the artwork, we handle those technical conditions and supply a print-ready file you can send to the printer you choose. If that printer has a particular template or export requirement, send it with the brief and we will build to it.

See how it works → · Read our artwork guidelines → · Browse what we design →

← Back to all articles