A lack of print ready files is the most common reason a print job gets sent back. The file has been sent, the deadline agreed, and everything seems sorted. Then a message arrives from the printer: the bleed is missing. Or the colours won’t come out the way they look on screen. Or the logo is too small for the technique you have chosen.
Most of these situations have nothing to do with the quality of the design. A piece can be brilliantly conceived and still be technically unusable. The gap between screen and paper is bigger than it seems, and a printing press doesn’t correct anyone’s oversights.
Why print ready files decide the outcome of a print run
A screen forgives, paper doesn’t. On screen everything adjusts instantly, while in print every parameter is fixed before the press starts.
In digital display, a mistake is corrected in seconds. With a run of five thousand flyers, a correction means a new print run and a new deadline. That is why files are made print ready before they are sent, not after the first complaint.
What bleed is and why printers ask for it
Bleed is the extension of the background beyond the trim line, usually three millimetres on each side. It exists because cutting is never perfectly precise. A deviation of half a millimetre is normal across a print run.
Without bleed, a thin white line appears along the edge. On a single flyer, that is a detail. On five thousand copies, it is a reprint.
Why colours look different on paper
A screen shows colour with light; print builds it with ink. They are two different systems. Screens use RGB, print uses CMYK, and their colour ranges don’t match.
The biggest difference shows in saturated tones. Bright green, electric blue and neon orange lose some of their intensity on paper. A file sent in RGB is converted automatically, and the result rarely meets expectations. That is why colours are defined in CMYK right from the design stage, with Pantone values used for accuracy.
How print ready files differ by printing technique
Each technique has its own rules, so the same artwork isn’t prepared the same way for all of them.
Offset requires CMYK and high resolution, and pays off on larger runs. Digital printing handles smaller runs and shorter deadlines, with a slightly narrower colour range. Screen printing works with a limited number of colours, so gradients and fine transitions are avoided. UV printing makes it possible to print on rigid surfaces. DTF and sublimation are used for textiles, and each requires a different approach to the substrate. Laser engraving and CNC cutting don’t work with colour at all, but with vector paths.
For the same reason, one file doesn’t cover every application. A logo that works on a billboard also needs a version for a two-centimetre sticker.
Five most common reasons for rejection
Fonts haven’t been converted to outlines. The printer doesn’t have your font, so the system replaces it with another. The text shifts and the layout falls apart.
The resolution is too low. Print requires 300 dpi at final size. A photo taken from the web is 72 dpi and looks blurry on paper.
The black isn’t a true black. Large black areas in pure K come out greyish. Rich black is used instead, with the other colours added.
The lines are too thin. Below 0.25 pt, a line gets lost in print. For foil and engraving, the threshold is even higher.
Elements are too close to the edge. Text two millimetres from the trim can end up cut off. The safe zone is at least three millimetres inwards.
How to check your file before sending it
Open the PDF and go through five things. Is there three millimetres of bleed on each side? Are the colours in CMYK? Is the resolution 300 dpi at actual size? Are the fonts converted or embedded? Is all important content inside the safe zone?
If the answer to all five is yes, the file is generally ready.
When to leave print ready files to a professional
For a simple business card, checking it yourself is usually enough. With packaging, multi-section catalogues, textiles or special finishes, it is a different story. Here a mistake isn’t measured in time but in the cost of the entire print run.
Preparing print ready files is a separate service in our offer, regardless of who created the artwork. We take over your existing files, adapt them to the chosen technique and, if needed, deal directly with the printer. Logo vectorisation, format corrections and resizing are also available individually.
