Print files
JPG vs PNG vs WebP for Print-on-Demand Files
JPG is the POD workhorse. PNG keeps sharp type. WebP is smaller but not every RIP accepts it. Pick by what the shop listed, then stamp 300 DPI.
Direct answer
Use high-quality JPG (around 90% or quality 10–12) for photographic print-on-demand files at 300 DPI. Use PNG when the artwork has sharp type, logos, or flat color and the shop allows it. Use WebP only when the partner’s spec sheet lists WebP — many print RIPs still reject it. Match sRGB unless the template requires another profile.
File-format debates online mix web performance with press requirements. Etsy thumbnails can be WebP. The machine that puts pigment on paper may only ingest JPEG. Always read the SKU template, then pick the format that preserves the kind of detail you sell.
Resolution still wins. A perfect PNG of a 800-pixel logo will print softer than a high-quality JPG of a 4000-pixel painting. Format does not replace pixel math.
JPG for photographs
JPG (JPEG) is the default for photographic prints. It compresses well, every RIP on earth opens it, and high quality (around 90%+) keeps grain and brushwork. Stamp 300 DPI in the JFIF/EXIF density tags.
Watch for banding in big sky gradients and neon illustration. If you see stripes, bump quality or switch that SKU to PNG. Avoid saving a JPEG, editing, and saving again — generational loss is real for already-compressed marketplace downloads.
JPG
Photographs and paintings. Universal RIP support.
PNG
Sharp type, logos, flat color. Larger files.
WebP
Only when the partner lists it. Many presses still reject it.
| Artwork | Best default | Avoid when |
|---|---|---|
| Photographs, paintings, scans | JPG high quality, 300 DPI, sRGB | You already see banding at q90 |
| Text, logos, flat illustration | PNG | The shop forbids PNG or caps file size too low |
| Web-only proofs / mockups | WebP or compressed JPG | You treat the mockup as the production file |
| Partner lists WebP | WebP | Local print shops with older RIPs |
PNG for type and flat color
PNG is lossless. Edges of lettering stay crisp. Files are large at poster size — a 16×20 PNG can be tens of megabytes. That is fine when the shop allows it and your upload limit is high.
PNG does not magically add CMYK. If the press wants CMYK TIFF, PNG sRGB is still a conversion step on their side. Ask. Transparency (alpha) is useful for mockups, not for most paper SKUs — flatten to a white or specified background unless the template shows a transparent print area.
WebP is smaller, not universal
WebP is excellent in browsers. Many print RIPs and some older shop intake tools do not accept it. Use it when the partner says they accept WebP. Otherwise export JPG.
If you design in a tool that defaults to WebP for “performance,” re-export production files as JPG or PNG. Do not upload the page-optimized asset to Printful.
Color and 300 DPI still matter more than the extension
sRGB is the POD default. Adobe RGB files can look dull after a shop assumes sRGB. Convert before export unless you are in a color-managed local press workflow.
Etsy print file requirements and Printful / Gooten / local shop prep cover partner quirks. Export from Reopic as JPG, PNG, or WebP at 300 DPI after you crop — pick the one the SKU lists.
Compression settings that survive paper
On a phone, quality 60 JPEG looks fine. On luster paper, you see mosquito noise around type and blotchy skies. Export photographs at about 90% (Photoshop 10–12, many tools’ “high”). If the file exceeds a shop’s megabyte cap, reduce dimensions only if you are still at or above the required pixels — do not crush quality to 40% to hit 5 MB.
PNG compression (zlib level) does not discard pixels. If a PNG is too heavy, the honest options are a smaller SKU, a JPG of a photographic piece, or asking the shop for a higher upload cap. Do not convert a logo to JPG just to shrink it; the halos around letters will print.
What to send a local shop vs POD
Neighborhood inkjets often want a high-quality JPG or a TIFF. Some ask for PDF/X. That PDF should contain the correctly sized raster, not a letter-sized page with a small image floating on it. Ask before you flatten layers into a mystery PDF.
POD dashboards almost never want PDF for a poster. They want the template’s PNG/JPG dropped into their generator. Prepare files for Printful, Gooten, or a local shop is the partner-specific checklist. Format is step two; pixel box is step one.
If you sell both photographic prints and type-heavy certificates, keep two export presets. Do not run the certificate through a photographic JPG save. Do not store the painting as a 40 MB PNG unless the shop asked for lossless.
FAQ: JPG vs PNG vs WebP print
Is PNG better than JPG for prints?+
PNG is better for sharp type and flat graphics. JPG is better as a universal photographic print file. Neither helps if the pixel count is too low.
Can I send WebP to Printful or Gooten?+
Only if that product’s file guide lists WebP. Many POD poster templates still want JPEG or PNG. Check the template, not a blog from 2021.
What JPG quality should I use for 300 DPI?+
Around 90% or Photoshop quality 10–12. Lower quality introduces artifacts that show on paper more than on phones.
Does the file format change DPI?+
No. DPI is a density tag plus pixel count. JPG, PNG, and WebP can all carry 300 DPI if the exporter writes it.
