How to Generate Photo Backgrounds in Photoroom

Before you start

Photoroom is a web and mobile service, so background generation requires an account and an internet connection. The AI processing runs on Photoroom's servers, but you can prepare a local copy of your source image before editing. Use an image with a clearly visible subject and avoid heavy shadows that blend into the background. Check the original pixel dimensions and aspect ratio if you need the result to fit a specific layout, because aggressive background replacement does not correct a very low-resolution source.

Step-by-step instructions

Start the AI background generator in the Photoroom editor or creation screen. The exact label may differ between the web version and mobile app, but the workflow is the same: open the background tool, then import the image you want to edit. Keep your original file saved separately so the edit stays reversible.

Select background removal first. Photoroom adds transparency around the detected subject. If the edge selection is wrong, use the eraser or restore brush to clean up small mistakes before adding a new background. This step matters more than choosing the replacement background.

Choose a template, solid color, imported image, or AI-generated scene from the background options. In versions that support prompt-based generation, describe the setting in plain words rather than long phrases. Keep the prompt focused on the scene, not on changing the subject, so the final composition remains consistent.

Adjust the framing and subject size before exporting. On mobile, the preview canvas uses the device screen; set the intended export aspect ratio through the resize or export settings if that option is available. Do not assume the preview size matches the output size.

Check the output

Download the edited file and open it at full size. Inspect the subject edges, especially around hair, hands, and translucent clothing. Look for leftover fragments of the old background, broken selection lines, or mismatched lighting between the subject and the new scene.

Confirm the file format and dimensions match your intended use. A transparent background is preserved in formats that support an alpha channel, such as PNG. JPEG does not retain transparency, so exporting a transparent cutout as JPEG may place it on a solid background. Check the available export settings before saving for web or print.

Common problems and next steps

If parts of the subject disappear, restore them with the brush before regenerating the background. If the new background looks too sharp while the subject is soft, lower the subject sharpness only if the editor exposes that control. Poor edge blending is usually fixed by reselecting the outline rather than by editing the replacement background further.

For users comparing an AI background generator in Photoshop or Fotor, the basic workflow is similar but the export defaults differ. Photoshop can keep layers and transparency intact when you export as PNG or PSD, while a flattened JPEG loses both. Users searching for a free Photoshop AI background option may mean the web-based Adobe tool or a trial feature; check the current plan limits in your own region because feature availability changes by version and subscription.

Avoid heavy compression when the background contains fine texture or gradients. A low-quality JPEG export can create visible banding or artifacts even when the preview looked clean. If the file is intended for later editing, keep a PNG or otherwise less-compressed copy before making a compressed delivery version.