Use Expand to fill unused canvas space around an image's background. This is useful when an image is smaller than the canvas and has unwanted transparent edges. Expand uses AI to generate more background to fill the space.
Expand is available from the image tile's pill menu for backgrounds that are:
Not a single color
Smaller than the canvas.
Steps (Web App)
To expand the background for a batch of images:
Note: These steps are for a batch that has one or more images with a background that does not fill the canvas. To create a batch, see Create a batch of images (Web App).
Select the background of an image that does not fill the canvas.
Photoroom displays the pill menu for the image and it has an Expand option.
Select Expand.
Photoroom expands the background so that it fills the canvas.
[Optional] To expand the background of other images in the batch, use Apply to all or Copy/Paste edits.
For more details, see:[Optional] Use the editor to make further changes, such as add text, graphics, or shapes.
Troubleshooting
Expand option not shown
If the Expand option is not shown on the pill menu:
Make sure that the background is an image, either the original image background, a custom image background, or an AI-generated background. Expand is not available for single color backgrounds.
Make sure you have selected the background and not a foreground layer. The Expand option is on the pill menu for the image and does not appear on the pill menu of foreground layers.
Check whether the background already fills the canvas. Expand is only available when the canvas has unused space. In some cases the unused space is less than a pixel, so the canvas can look full when it is not.