Printing terms for sticker designers are the shared language between a person who designs a label and the printer who produces it. Many customers now design their own labels with AI tools or free apps, and that is welcome. But a design is only as good as the instructions that go with it, and instructions need the right words: size, resolution, bleed, cut line and proof.
This guide is part of our series on small batch stickers in Nigeria. Last updated: 16 October 2026.
This glossary explains the terms you will meet, in plain language, with one practical tip for each. Keep it open when you brief an AI tool or send a file for printing.
Table of Contents
Table of Contents
Size and shape printing terms for sticker designers
- Dimension. The width and height of the finished sticker, such as 3 x 3 inches. Always say the unit, inches or centimetres. Tip: give the actual dimension to your AI tool and your printer.
- Aspect ratio. The relationship between width and height. A circle or a square is 1:1. A strip that is 7 inches by 2 inches is 7:2. Tip: keep the ratio when resizing, or the design is stretched. See how to resize an image for stickers.
- Cut line (contour). The line along which the sticker is cut: a circle, a rectangle, an oval or a shape that follows your artwork. Tip: tell the printer the shape you want. See custom shape stickers.
- Die-cut. A sticker cut to its own shape, rather than a square from a sheet.
- Wrap-around. A long label that goes around a cylindrical container. Tip: measure the container with a strip of paper.
Image quality printing terms for sticker designers
- Resolution. How much detail an image holds, measured in pixels per inch (ppi, also called dpi). About 300 pixels per inch at the finished size is the usual target for sharp print. See image resolution.
- Pixel. A single dot of colour on a screen. A larger sticker needs more pixels.
- Raster image. An image made of pixels, such as a photo, a PNG or a JPEG. Raster images soften when enlarged. See raster graphics.
- Vector image. An image made of lines and shapes, such as an SVG or a PDF with vector artwork. It stays sharp at any size. See vector graphics.
- Upscaling. Making an image bigger by adding pixels, sometimes with machine-learning software. It can help a soft image, but it cannot be trusted with small text. See upscale AI artwork for printing.
- Compression. Shrinking a file to make it smaller, which can lower quality. WhatsApp compresses images sent as photos, so send artwork as a document.
Layout printing terms for sticker designers
- Bleed. Extra background that extends past the cut line so no white edge shows if the cut moves slightly. About 3 mm is common. See University of Bristol print services.
- Safe margin. The space inside the cut line where text and logos must stay. About 5 mm is a common rule. Tip: this is where phone numbers go missing when they sit too close to the edge. See phone numbers on printed stickers.
- Contrast. The difference between text and background. Higher contrast reads better.
- Point size. The size of text. Small text can be unreadable on a small label.
Colour printing terms for sticker designers
- RGB. Red, green and blue light, used by screens. Bright and glowing.
- CMYK. Cyan, magenta, yellow and black ink, used by printers. See CMYK colour model. Some bright screen colours print duller. See why print colour differs from screen colour.
- Transparent background. A background with no colour, saved in formats such as PNG. Tip: ask for it if your design has to sit on a shaped cut.
Production printing terms for sticker designers
- Proof. A preview of how the design will print, checked before printing starts. Tip: always check a proof at actual size.
- Large format. Printing on wide machines, usually for banners and big prints. Large-format files must be high resolution for their size.
- Print-ready file. A file with the right size, bleed, resolution and colour, ready to print without fixing. See print-ready PDF.
- Finishing. What happens after printing: cutting, laminating, trimming.
How to use printing terms for sticker designers with an AI tool
An AI tool knows these words and can act on them. A good brief might say: “circular label, 3 x 3 inches, for printing on a sticker, high resolution, flat design, two colours, no tiny text, keep text away from the edge.” Then ask it to avoid listicle lines, rows of icons, slogans and excessive detail. For prompts you can copy, see AI prompts for sticker logos.
Learning printing terms for sticker designers takes an afternoon and saves reprints. The better you brief the tool, the fewer corrections you need, and the fewer surprises when the stickers arrive.
What is bleed in printing?
Bleed is extra background that extends past the cut line, so no white edge shows if the cut moves slightly. About 3 mm is common.
What does resolution mean?
It is how much detail an image holds, in pixels per inch. About 300 pixels per inch at the finished size is the usual target.
What is the difference between raster and vector?
Raster images are made of pixels and soften when enlarged. Vector images are made of lines and shapes and stay sharp at any size.
What is a proof?
A preview of how the design will print, checked before printing begins.
Why do I need to know these words?
Because many people now design their own labels. Using the right words with an AI tool and with your printer prevents mistakes and reprints.
Not sure what a term means for your design?
Send us your artwork and we will explain what to adjust and how to resend it.
Order stickersRectangular stickersAsk a questionAbout the author: This guide was written by the Lampmediatouch team in Ogbomoso, Oyo State, from day-to-day experience designing and printing labels, stickers and branding materials for small businesses across Nigeria. Contact us with questions about your own labels.
