Does a DTF PNG have to be 300 DPI?

Treat 300 PPI at final size as a strong target, not magic metadata. Some art prints acceptably lower and fine detail may benefit from more, but the receiving printer should set the final rule.

Should DTF PNG be RGB or CMYK?

Most DTF shops accept RGB PNG because the RIP converts color for the printer and ink set. Ask the receiving shop for its preferred profile and export instructions.

Why is there a white box around my transfer?

The background was flattened or is not truly transparent. Check the alpha channel and remove the background before generating the white underbase.

Patch It Up Pro

DTF PNG File Specifications: DPI, Transparency, Color, and Size

Short answer: For DTF production, export PNG artwork at the exact print size with a transparent background and enough pixels for roughly 300 PPI at final dimensions. Use RGB unless your RIP requires a different workflow, remove semi-transparent background artifacts, and inspect the alpha edge at 100% before building the gang sheet.

Quick specifications

Format: PNG with alpha transparency
Resolution target: About 300 pixels per inch at final print size
Color: RGB unless the receiving RIP specifies otherwise
Background: Transparent, with no hidden matte or halo
Scale: Exact final dimensions
Compression: Lossless PNG

Pixel dimensions at 300 PPI

Pixel dimensions at 300 PPI
Final print size	Pixel width	Pixel height
3 × 3 in	900 px	900 px
4 × 5 in	1,200 px	1,500 px
10 × 12 in	3,000 px	3,600 px
11 × 14 in	3,300 px	4,200 px
22 × 36 in gang sheet	6,600 px	10,800 px

Production recommendations

Judge resolution at final size: A file can show 300 DPI metadata and still be too small. Pixel dimensions divided by final inches determine effective PPI.
Inspect transparency: Zoom into the edge over both black and white backgrounds to find halos, stray pixels, and accidental transparency.
Let the RIP handle white: Most DTF workflows generate a white underbase in the RIP. Do not flatten artwork onto white unless the printer specifically requests it.

Frequently asked questions

Does a DTF PNG have to be 300 DPI?: Treat 300 PPI at final size as a strong target, not magic metadata. Some art prints acceptably lower and fine detail may benefit from more, but the receiving printer should set the final rule.
Should DTF PNG be RGB or CMYK?: Most DTF shops accept RGB PNG because the RIP converts color for the printer and ink set. Ask the receiving shop for its preferred profile and export instructions.
Why is there a white box around my transfer?: The background was flattened or is not truly transparent. Check the alpha channel and remove the background before generating the white underbase.