Best PromptsPrint on Demand Apparel
Generate t-shirt and merch artwork built for printing: flat color, clean edges, transparent background, and a mockup that sells it.
Create a t-shirt design. Concept: [THE IDEA, JOKE, PHRASE, OR IMAGE] Exact text, if any: [TYPE IT EXACTLY, WITH THE CAPITALIZATION YOU WANT] Audience and where they would wear it: [WHO BUYS THIS] Style: [bold vintage / minimal line art / retro 70s sunset / hand-drawn / heavy blackwork / kawaii] Shirt color it prints on: [DARK / LIGHT / BOTH] Prompt: A flat vector-style t-shirt graphic of [SUBJECT], [STYLE], rendered as a single centered composition on a plain [white / transparent] background. The text reads exactly "[TEXT]", set in [TYPE STYLE: heavy condensed sans / rounded retro script / hand-lettered slab], [ARRANGEMENT: arched above the artwork / stacked in three lines / wrapping the illustration]. Every letter fully formed and correctly spelled, with even spacing. Limited to [3-5] flat colors with no gradients, no drop shadows, and no photographic texture. Bold clean outlines, solid shapes, and clear separation between elements so the design reads from across a room. No background scene, no frame, no border, no mockup, no shirt, no hanger, no watermark. The graphic only, isolated on the background. Composition sized to sit within a [12 x 16 inch] print area, with the subject filling the frame and a small margin of empty space around it. [FOR DARK SHIRTS: use light colors and avoid pure black, since black areas will disappear into the fabric.] [FOR LIGHT SHIRTS: avoid white elements for the same reason.] Then, separately, generate the mockup: the same design printed on a [COLOR] [heavyweight cotton tee / hoodie], worn by a person, [SETTING], natural daylight, the design flat and undistorted on the fabric with realistic fabric texture and shadowing.
How to use
The constraints that matter for print are the ones about flat color, no gradients, and no background, because a design that looks great on screen with a soft glow prints as a grey smudge and a visible box. Generate the artwork and the mockup separately: a generated shirt-on-a-model image is a picture of a shirt, not a printable file. Check the text letter by letter at full size before uploading, and remember that a design containing a real brand, character, or logo is not sellable regardless of how well it renders.
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