Upscale images for sublimation and heat transfer
Customer designs often arrive as small screenshots that print fuzzy on a mug or shirt. Upscale them to 300 DPI with AI, keep colors vivid and export in the exact size your press needs.
Upload your image
PNG, JPG, WEBP, BMP or TIFF up to 40 MB and 100 megapixels
Click or drag the file hereWhy sublimation shows every flaw
Sublimation dye spreads slightly into the fabric or coating, so pixelated edges turn into soft blobs. Starting from a sharp, high-resolution file is the only way to get crisp lettering.
Workflow for shops
Batch upload is available on the Print Shop plan: drop a folder of customer files, preview all of them and download the ones you need at 300 DPI.
Frequently asked questions
300 DPI at the final print size. An 11 oz mug wrap (about 20 × 9 cm / 8 × 3.5 in) needs around 2400 × 1050 px.
Related tools and guides
- Upscale images for print in HD
- Increase image DPI to 300 for printing
- Image resolution for printing: what DPI do you need?
- AI image upscaler: enlarge photos without losing quality
- Enlarge an image without losing quality
- Unblur and sharpen blurry photos with AI
- Print-on-demand image requirements explained
- What resolution do you need for a poster or banner?
- Why does my image print pixelated or blurry?