Make Background Transparent

Many images have a background that is just one flat color: a logo exported on white, a signature scanned on paper, a product photographed on a paper backdrop, an icon on a colored square. To place such an image on a website, slide or document with another background, the flat color needs to become transparent. This tool does exactly that, precisely and without AI guesswork.

Automatic background detection

As soon as you add an image, the tool looks at the pixels along its edges and picks the most common color there as the background. For a logo on white or a signature on paper, that is right in nearly every case. If it picks the wrong one, click on the background in the preview to choose the color yourself, and use the reset button to return to automatic detection.

Tolerance

Real backgrounds are rarely one exact value. JPEG compression, paper texture and uneven lighting create slight variations. Tolerance sets how different a pixel may be and still count as background. The default of 10 suits clean digital graphics. Scans and photographed backdrops often need 15 to 30. Raise it gradually and watch the preview; when parts of the subject start to vanish, step back.

Edge softness

Anti-aliased edges contain pixels that mix the subject color with the background. Removing them abruptly leaves a jagged outline, while keeping them leaves a light fringe. Edge softness makes pixels near the tolerance limit partly transparent, giving smooth outlines that blend onto any new background. A value around 6 works for most logos; increase it for soft, photographic edges.

Only connected areas

With this option on, which is the default, removal starts from the edges of the picture, or from where you clicked, and spreads only through touching background pixels. Areas of the same color enclosed by the subject stay intact: the white inside the letter O, the white of eyes in a mascot, highlights on a product. Switch it off to remove the color everywhere, which is useful for letter shapes where enclosed holes should be transparent too.

Scanned signatures

Sign on clean white paper with a dark pen, scan or photograph it in even light, and crop it tightly. Then raise the tolerance until the gray paper disappears while the ink stays solid. The transparent signature can be placed into documents; the Sign PDF tool also accepts it.

Saving the result

Transparency needs a format that supports it, so the result is saved as PNG or WebP. PNG is lossless and works everywhere; WebP is smaller for use on websites. The preview shows the result over a checkerboard, and a compare switch shows the original.

When to use AI instead

Photos where the background is a real scene, such as a room, a street or a garden, have too many colors for this method. For those, Remove Image Background uses a segmentation model to find the subject.

Privacy

All processing happens in your browser, which suits company logos and personal signatures that should not be uploaded.

Related tools

To swap a color for another instead of removing it, use Replace Image Color. To turn the transparent logo into an icon, try PNG to ICO or the Favicon Generator.