Which mode should you use?
The right mode depends on whether the background colour also appears inside your subject.
Remove a colour
Best for logos, icons and text on a plain background. Every pixel that matches the colour becomes transparent, including the holes inside letters such as "o" and "e". That is usually exactly what you want for a logo.
Connected
Best for product photos and people. Only background that is connected to the image edges is removed, so a white shirt, label or highlight in the middle stays solid. Tap extra points to clear enclosed gaps, such as the space inside a mug handle.
Signature
Designed for a signature photographed or scanned on paper. It evens out shadows and paper texture, then keeps only the ink. Trimming is on by default so you get a tight PNG ready to place in a document or the signature resizer.
Getting clean edges without halos
Most edges in a photo or logo are anti-aliased: the pixels along a curve are a blend of subject and background. Simply deleting the background leaves those blended pixels behind as a pale outline that shows up on dark pages.
- Tolerance controls how different a pixel can be from the background and still be removed. Start low and raise it until shadows and JPEG noise disappear.
- Soft edges sets the range of partial transparency. Higher values give smoother outlines; lower values give crisp, hard edges for pixel art or screenshots.
- Preview backdrops matter. Always check against black as well as white, because halos from a white background are invisible on white.
If an area of the subject is accidentally removed, switch to Connected mode or lower the tolerance a little.
Where transparent PNGs are useful
A transparent image can be layered over any colour, photo or video. Common uses include:
- Online shops: marketplace listings often require a pure white background; cut the product out once, then place it on white or any brand colour.
- Logos: websites, email signatures and slide decks look professional when the logo sits directly on the background.
- Documents: a transparent signature can be placed over a PDF line without covering text.
- Favicons and stickers: transparency is what lets an icon blend into a browser tab or messaging app.
Once you have the PNG, you can vectorise it with the PNG to SVG converter or make a favicon with the favicon generator. For complex photos with hair or busy scenes, an AI cut-out tool will do better; this tool is built for flat backgrounds.