DTF Black Knockout + Halftone
Drop in your art, knock out the black so it disappears on dark shirts (and saves a ton of ink), optionally halftone for fades or lightweight prints — then download a print-ready transparent PNG for your gang sheet or RIP.
or click to choose a file
Knockout
Halftone — for fades / lighter print
Lower LPI = bigger, easier-to-print dots. 22° is a safe single-color angle.
Preview on
Why knock out black?
On a black or dark garment, leaving the black in your file prints a dark box you can barely see — and burns ink. Knocking it out lets the shirt show through, so the print looks clean and costs less to make.
Do you even need a halftone?
For most full-color DTF, no — just knock out the black and print. Halftones are for fades and gradients, or to lighten a heavy print. That's why it's optional here. Turn it on only when you want that look.
Need real multi-color screen-print separations?
This tool preps DTF art. When you need true spot-color or simulated-process plates with your own inks, white underbase and RIP-grade screening — that's the full studio.
Try the free color separator See the $179 desktop appFAQ
Do I need to halftone for DTF?
Usually no. DTF prints full color, so for most designs you just knock out the black and print. Halftones are mainly for fades/gradients or to lighten a heavy print and save ink.
Will this fix bad artwork?
No. If a design is mostly black on a black shirt, knocking out the black can leave very little behind. This preps good art for print — it can't add detail that isn't there. Start with the cleanest, highest-resolution art you can.
Is it private?
Yes — everything runs in your browser. Your images never upload to a server, and there's no signup.
What file should I use?
A PNG with the background already removed gives the cleanest knockout. JPG/WebP work too, but a solid background will be treated as part of the image.