DPI Guide for Print-on-Demand: What Resolution Do You Actually Need?
Guide · Updated 15 October 2026
In short: DPI (dots per inch) describes how much image detail is packed into each printed inch. Most fabric and apparel POD printing looks sharp at 150 DPI; fine paper goods and close-up products want 300 DPI. What actually matters is the pixel dimensions at your print size — DPI is just pixels ÷ inches.
DPI in one sentence
If an image is 3000 pixels wide and you print it at 10 inches wide, that's 300 DPI (3000 ÷ 10). The same 3000-pixel image printed at 20 inches wide becomes 150 DPI — same file, lower resolution, because the pixels are spread over more physical space.
What resolution different products actually need
| Product | Typical viewing distance | Recommended DPI |
|---|---|---|
| Fabric by the yard, upholstery | Arm's length or further | 150 DPI |
| Apparel (t-shirts, totes) | Arm's length | 150–300 DPI |
| Wallpaper, large wall art | Several feet | 100–150 DPI |
| Stationery, cards, stickers | Close, in-hand | 300 DPI |
| Phone cases, small accessories | Close, in-hand | 300 DPI |
The rule: the closer the product is typically viewed, the higher the DPI it needs, because the eye can resolve finer detail up close. A wallpaper viewed from across a room can get away with far less resolution per inch than a greeting card held six inches from your face.
What the main print-on-demand services ask for
Checked in October 2026. Each service sets its own rule, and some state it in pixels rather than DPI, so the product's own template is always the final word.
| Service | What it asks for |
|---|---|
| Spoonflower (fabric, wallpaper) | 150 DPI. Files saved at a lower DPI are converted to 150, and the printed size is the pixel count divided by 150: a 1500-pixel tile prints 10 inches wide. |
| Printful | 150 DPI for apparel, all-over print and embroidery; 300 DPI for posters, mugs and other non-apparel products. Each product page has a file-guidelines tab with the exact pixel size. |
| Redbubble, Society6 | Sizes are listed in pixels, product by product, and some products need very large files. Export for the largest product you plan to offer. |
| Etsy digital downloads | No print DPI, because the buyer prints. A listing can carry up to five files of 20 MB each, so check the file size of a large tile before you upload it. |
File format and colour
- PNG for a seamless tile. PNG is lossless, so the edge pixels that make the repeat meet stay exact. JPG compression can soften them, and a faint line can show where tiles join.
- RGB, not CMYK. Most print-on-demand services take RGB (sRGB) files and convert them for their own printers. Convert to CMYK only when a printer asks for it.
- No transparency on fabric and all-over prints. A repeat should fill the tile edge to edge; a transparent area prints as the bare colour of the material.
How to check before you export
- Find your platform's exact spec — most POD platforms publish minimum pixel dimensions per product size, not just a DPI number. Check theirs before exporting; the numbers above are general guidance, not a substitute for the platform's own requirement.
- Export at the pixel dimensions the platform specifies, not just "as large as possible" — oversized files waste storage and upload time with no visible benefit above the printer's actual resolution.
- For a seamless repeat pattern specifically, resolution also affects how large one printed repeat looks — a low-resolution tile stretched to cover a large area will look blurry even if the DPI number looks acceptable on paper.
Try it live: export a seamless PNG at the size your product needs: up to 1024 px at 72 dpi on Free, 4096 px at up to 300 dpi on Creator, 8192 px at up to 600 dpi on Pro, and 16K on Studio. No watermark on any plan.
Open the pattern generator →Frequently asked questions
Is higher DPI always better?
No — beyond what the product and printer can actually resolve, extra pixels just mean a larger file with no visible quality gain. Match resolution to the platform's actual spec.
Can I upscale a low-resolution pattern instead of re-exporting?
Upscaling software can improve how a low-resolution image looks, but it can't recover detail that was never captured — re-exporting from the original pattern generator at the correct size always gives a sharper result than upscaling afterward.
Does DPI matter for digital-only listings (no physical print)?
Less so — a file only ever viewed on screen is governed by pixel dimensions relative to screen resolution, not DPI. DPI matters specifically once ink hits a physical surface.
What DPI does Spoonflower need?
150 DPI. Spoonflower converts every upload to 150 DPI and works out the printed size as the pixel count divided by 150, so a 3000-pixel tile prints 20 inches wide.
What DPI does Printful need?
150 DPI for apparel and embroidery, and 300 DPI for posters, mugs and other non-apparel products, according to Printful's own file guidance. The file-guidelines tab on each product page gives the exact pixel size.
The sum, worked out
If you would rather not do the arithmetic: print-on-demand pixel sizes lists the pixel dimensions for fabric, apparel, wallpaper, posters and stationery at 150 and 300 dpi, and the DPI calculator works out any other size.