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Pngtee guide

Why is there a white outline around my design on dark shirts?

The outline is leftover background color in the edge pixels of the file. When a white background is deleted roughly, the pixels at the edge stay partly white, and on a dark shirt they show as a thin light line.

Your design filePNG, JPG or WebP · up to 24 MBUpload your design

Beta. 5 free previews a day, no account. Nothing is redrawn or enlarged.

The SUNSET VIBES badge as a transparent PNG, on a dark shirt color
The SUNSET VIBES badge as a JPG with a white box behind it
JPG with a boxTransparent PNG
Real output of the tool, from the JPG on the left.

Before you start

You need
The JPG, PNG or WebP of your design, up to 24 MB.
You get
A transparent PNG, checked on a dark and a light shirt.
Time
Usually under a minute.
Cost
The preview is free, five a day. The clean PNG is one credit.

Step by step

  1. The SUNSET VIBES badge as a JPG with a white box behind it
    01Put the file on a dark background.

    If a light line runs around the art, the edge pixels still carry the old background.

  2. The SUNSET VIBES badge as a transparent PNG
    02Upload the original here.

    The background color is taken out of the edge pixels, not only cut away beside them.

  3. The SUNSET VIBES badge as a transparent PNG, on a dark shirt color
    03Check the dark shirt preview.

    Look along the edge before you download.

Why a rough delete leaves it

An edge pixel is a blend of the art and the background. Deleting the background next to it leaves the blend behind.

What is not changed

Colors inside the design are left as they are, and nothing is redrawn.

See your design on a dark shirt before you print it.

Five previews a day, no account. Pay only for the files you keep.

Your design filePNG, JPG or WebP · up to 24 MBUpload your design

Beta. 5 free previews a day, no account. Nothing is redrawn or enlarged.

More guides

The SUNSET VIBES badge as a transparent PNG, with no box behind itThe fileWhy does my shirt design print with a white background behind it?Because the file has a background. A JPG, or a PNG saved on white, prints everything in the file, box included. A transparent PNG holds only the design.Read the guide The MAMA BEAR lettering as a transparent PNG: cream letters with a brown outline and no boxThe fileHow do I remove the white background from a t-shirt design?Upload the JPG, PNG or WebP. The box and any soft shadow are removed and nothing is redrawn. It is in beta: it works on designs with a clear outline and fails on some others.Read the guide A wolf howling at a yellow moon as a transparent PNGPrint and sellWhat size PNG do I need for a t-shirt print?Print width in inches is the pixel width divided by the print resolution. A 2048 pixel file is about 6.8 inches at 300 pixels per inch and about 13.6 inches at 150.Read the guide