Lesson 1 of 5 · 10 min · Free
How to remove a background from an image (and fix the edges)
Learn how to remove a background from an image in four steps, judge a clean cutout, and fix halos, hair and messy edges, all without Photoshop.
Removing a background used to mean an hour with the pen tool in Photoshop. Today an AI model can do the cutting for you in seconds. The part that still takes judgment is knowing whether the cutout is actually good, and what to do when it isn't. This lesson covers both.
How to remove a background from an image in four steps
Here is the quick version using the Remove Background tool. It runs in the browser, so there is nothing to install.
- Open Remove Background and upload a JPG, PNG or WebP up to 10MB, or drag it onto the page.
- Click Remove Background and wait a few seconds.
- Drag the before-and-after slider across the edges of your subject to check the result.
- Download the transparent PNG or save it to your gallery.
Each run costs one credit, and credits are only deducted after a successful result. New accounts start with 10 free credits, and credits never expire.
One honest detail before you start: the image is scaled to a maximum of 1024 pixels on its longest side before processing. That is plenty for a profile picture, a slide or a marketplace thumbnail. If you need a large print, plan to enlarge the cutout afterwards with Upscale.
Start with a photo that wants to be cut out
The AI does its best work when the subject is easy to tell apart from what is behind it. You can make its job much easier before you ever press the button:
- Contrast. A dark jacket against a dark wall gives the model very little to separate. Step in front of something lighter, or vice versa.
- Sharp focus on the subject. Motion blur turns edges into a smear, and no cutout tool can invent a clean line that the camera never captured.
- Space around the subject. Arms pressed to the body, or a product touching another object, create small enclosed gaps that are easy to get wrong.
- Even light. Harsh shadows on the floor or wall can be read as part of the subject.
If something is touching your subject that you don't want in the cutout, such as a hand holding a product or a cable, erase it first with Object Remover, then remove the background.
What a good cutout looks like
A cutout can look perfect on a white checkerboard and fall apart the moment you place it on a real background. Judge it the way it will be used. Zoom in and look at these places:
Hair and fur
Good hair keeps individual strands and a soft, slightly see-through edge. Bad hair looks like a helmet: a hard outline with the flyaways chopped off. The tool is instructed to keep hair, fur and fine edges intact, and it usually does, but very fine or blurry strands are where you will see trouble first.
Halos and fringing
A halo is a thin line of the old background left clinging to the edge. It is invisible on a matching color and obvious on a contrasting one.
Holes and gaps
Check the spaces between arms and body, between fingers, inside handles and through chair backs. The old background should be gone from those gaps too. The opposite mistake also happens: part of the subject, like a pale sleeve against a pale wall, gets cut away.
Shadows and reflections
A contact shadow under a shoe or a reflection on a table is part of the old scene. Most of the time you want it gone so you can add a new, matching shadow later.
Quick test: place your cutout on a background that is the opposite of the original. A subject shot on a white wall goes on black, and one shot on a dark wall goes on white. Every halo and missed gap will show up immediately.
How to fix the edges
When the result isn't clean, work through these in order. Most problems are solved by the first two.
- Run it again. The tool's own guidance is that very thin or motion-blurred edges can need a second pass. A fresh run can produce a cleaner edge.
- Improve the source. Crop closer to the subject so it fills more of the frame, which gives it more of the 1024 pixels to work with. If the photo is soft, sharpen it first with Enhance Image using the Sharpen mode, or fix shake and compression damage with Photo Repair.
- Remove the troublemaker. If one stray object keeps getting merged into the subject, erase it from the original with Object Remover and try again.
- Reshoot if you can. For a product or a portrait you can take again, a better photo on a plain, contrasting background beats any amount of fixing.
What to do with your cutout
You can drop a transparent PNG into a slide or a flyer, or give a product a finished scene with Product Studio, which removes the background and places the item on a surface with studio lighting in one step. If your subject sits too close to the edge of the frame, AI Expand can add room around it before you cut it out.
The habit worth keeping from this lesson is simple: never judge a cutout on the checkerboard. Judge it on the background it is going to live on.
Practice
Pick two photos: one of a person with loose hair and one of an object on a busy table. Run both through Remove Background. Place each cutout on a background that is the opposite color of the original and list every halo, gap or chopped edge you can find. Then improve one source photo (crop closer, sharpen it, or erase whatever touches the subject) and run it again. Compare the two cutouts side by side and note which change made the biggest difference.