How to Generate Photo Backgrounds in Adobe Express

Before you start

The background generator works on photos that you import into Adobe Express. You need an Adobe account, a supported web browser or the Adobe Express app, and a source image with enough separation between the subject and the background for the tool to detect edges cleanly. The AI processing runs through Adobe's service, so you need an internet connection while the background is being generated.

Check your source file before uploading. Start with a sharp, well-lit photo where the subject is not cut off by the frame. Avoid very thin strands of hair, semi-transparent fabric, or objects that blend into the background, because these areas are harder for automatic subject detection to separate.

Step-by-step instructions

Open Adobe Express and select the option for generating an image or starting a new design. The exact label can differ between the web version and the mobile app, but the background-generation workflow is available from the image or photo editing tools.

• Upload your photo, or choose one from the Adobe Express media library.
• Select the image and open the background or AI tools panel.
• Choose the background generator option.
• Enter a text prompt that describes the scene you want, such as a studio backdrop, forest, office, or plain color.
• Apply the generated result to the photo.
• Adjust the subject position, crop, or prompt and generate again if the result looks wrong.

Use specific words in the prompt to control the result. Instead of a short phrase such as "nice background," describe the setting, light, and style. For example, ask for a soft gray studio background, blurred green trees, or warm indoor light. Short, concrete prompts tend to produce more predictable output.

If the version you are using has an option to adjust the subject mask, use it before generating. A rough selection around the subject can help the AI separate foreground from background more accurately, especially when the automatic result misses fine edges.

Check the output

Zoom in around the subject's edges. Look for obvious errors such as missing hair, jagged outlines, background colors bleeding into clothing, or parts of the old background still visible near the subject. The result should look attached to the new scene without harsh glowing borders.

Check the image dimensions and aspect ratio before exporting. If the composition was intended for social media or a print layout, the generated background may need to be cropped or resized to match the destination. Export the final image at the highest quality setting available for your file type.

The exported result is usually a flat raster image. Do not expect a separate transparent background unless the available options include exporting transparency or a subject cutout. If the background generator produces a flattened file, the original background is not preserved in the export.

Quality can also be affected by conversion and compression at export. A JPG file uses lossy compression and may introduce small artifacts on a busy background, while a PNG is usually better for sharp edges and solid color areas but creates a larger file. Choose the format based on how the image will be used.

Common problems and next steps

If the background appears in front of the subject or the subject looks transparent, undo the generation and retry with a clearer source photo. Increasing contrast between the subject and original background can help the detection step separate them more accurately.

Small artifacts often improve with prompt changes rather than filters. If the scene looks too busy, describe a simpler background. If the lighting does not match the subject, ask for matching light direction or cooler or warmer tones.

Keep the edit reversible by working on a duplicate image or using the app's undo history. Preserve the original photo so you can return to it if the generated result cannot be corrected. Adobe Express files remain editable from their source project, but an exported image should not be treated as a source file.