How to Add a White Border to a PNG Without Photoshop

Step-by-step

1. Export or download your artwork as a transparent PNG.

2. Open the free white border PNG tool on StickerBleed.

3. Upload the file, keep color #FFFFFF, set thickness, and generate.

4. Preview original vs result, then download the outlined PNG.

Contour white border vs canvas pad

Padding a canvas adds white around a rectangle. Contour outlining adds white around the actual shape — usually what sticker sellers want.