PNG vs JPG for Printing: Which Gives Better Results?
For Printing, PNG Is Usually Better
PNG's lossless compression preserves every detail, producing sharper prints with no compression artifacts. JPG's lossy compression can cause visible banding in gradients (skies, backgrounds) and fuzziness around sharp edges and text when printed at large sizes. For any print where quality matters — posters, portfolios, professional photos — use PNG or TIFF.
When JPG Is Fine
For standard photo prints (4×6, 5×7, 8×10), a high-quality JPG (90%+ quality) is virtually indistinguishable from PNG. The JPG artifacts are too small to see at normal print sizes and viewing distances. For casual prints, family photos, and anything smaller than poster size, JPG works perfectly and the smaller file size makes it easier to upload to print services.
Resolution Matters More Than Format
The biggest factor in print quality is resolution, not file format. You need at least 300 DPI (dots per inch) at the target print size. A 4000×3000 pixel image prints well at 13×10 inches at 300 DPI. An 800×600 image will look pixelated at any size larger than a postage stamp, regardless of whether it's PNG or JPG. Check your image dimensions before worrying about format.
What Print Services Accept
Most online print services (Shutterfly, Mpix, Snapfish) accept JPG, PNG, and TIFF. Professional print labs often prefer TIFF for high-end work. Some services specify a minimum resolution (e.g., 3 megapixels for an 8×10). Very few accept WebP, HEIC, or AVIF. If your photos are in these formats, convert to JPG or PNG before uploading.