Background Extender
Background Extender is the companion tool to Background Remover. Extend an image canvas outward, filling in the new space with content that matches the existing image. Useful for reframing portraits for wider aspects, giving products more breathing room, or completing images that were cropped too tight.
Coming soon. Background Extender is not yet available. This page describes the planned capability so you know what to expect. Check the app's Create menu; when the tool ships, the "Coming soon" label disappears and the tile activates.
What it will do
Upload an image, drag handles on each edge to specify how far to extend the canvas, and the model fills the new margin with content that matches the existing image's subject, lighting, and palette. The original image pixels are preserved exactly; only the extended area is generated.
Why you'd use it
- Reframe for a different aspect: take a 1:1 portrait and extend it to 16:9 for a hero banner without cropping the subject.
- Add composition space: a tightly framed product shot needs space for text or logo overlay. Extend the canvas on one side.
- Complete a crop: an image was cropped too tight. Extend to give the subject room within the frame.
- Match storyboard aspect: ingest a legacy image into an aspect-locked storyboard.
Extender vs Remover vs Generator
| Need | Use |
|---|---|
| Remove the existing background | Background Remover |
| Replace the background with a new one (subject locked) | Background Remover → Generate BG |
| Extend the canvas (subject and background both preserved, new margin generated) | Background Extender |
| Create a brand-new image from scratch | Image & Video Generation (Fawna Illustrate or Compose) |
Expected limitations
- Large extensions drift. Extending by 20% of the canvas reads cleanly. Extending by 200% or more will produce a generated area that starts to feel disconnected from the original.
- Complex scene edges. Busy, detailed original edges (crowds, architecture) are harder for the model to extend coherently than simple ones (sky, sand, gradient backgrounds).
- Text and typography. Text inside the original image won't extend legibly into the new margin (it isn't the same characters, just similar-looking glyphs).
In the meantime
If you need a wider framing right now, the workaround is to regenerate the image at the target aspect using Fawna Illustrate or Compose with a prompt describing the full scene. Attach the original image as a style reference in Compose for palette continuity.
Where to go next
- Background Remover for the companion tool that is available today.
- Image & Video Generation for generating images at a specific aspect directly.