Extend Images Beyond Their Borders with AI
Outpainting expands an image beyond its original boundaries, generating new content that seamlessly continues the existing scene. Need to turn a square image into a widescreen panorama? Want to add more sky above a landscape or extend a room to the left? Outpainting makes it possible in seconds.
Try Outpainting NowWhat is Outpainting?
Outpainting is the reverse of inpainting. Instead of filling a hole inside an image, it generates entirely new content outside the original frame. The AI analyzes the existing image's composition, perspective, lighting, and subject matter, then extrapolates what should logically appear beyond the edges. This is incredibly useful for changing aspect ratios (square to 16:9 for video thumbnails), adding breathing room around a tightly cropped subject, or extending a background for wider layouts. The generated content matches the style, color palette, and depth of field of the original, creating a unified result that looks like it was always part of the image.
Step-by-Step Outpainting Workflow
Follow these steps to get the best results with outpainting on Apatero
Choose Expansion Direction
Select which edges to extend: left, right, top, bottom, or any combination. You can also expand all four sides equally to add uniform padding around the original image.
Set the Extension Amount
Specify how many pixels or what percentage to add on each side. Moderate extensions (25-50% of the original dimension) produce the most convincing results. Very large extensions may need multiple passes.
Add an Optional Prompt
Describe what should appear in the extended area. For example, 'more forest and distant mountains' or 'continuation of the brick wall.' Leave the prompt empty to let the AI decide based on context.
Review and Iterate
Check the expanded result for consistency. If one edge looks off, outpaint just that side again. For very large expansions, work in multiple smaller steps for better quality.
Tips for Better Outpainting Results
Use these tips to get the most out of outpainting on Apatero
Extend by 25-50% per pass for the most natural-looking results
Use outpainting to convert portrait images to landscape for social media banners
Add a guiding prompt for the extended area to maintain creative control
For panoramic extensions, work one side at a time rather than both simultaneously
Outpainting works best when the original image has clear environmental context at the edges
Combine outpainting with inpainting to expand the canvas and fix any inconsistencies in one workflow
Outpainting FAQ
Common questions about outpainting on Apatero
How far can I extend an image with outpainting?
There is no hard limit, but quality is best when extending 25-50% per pass. For larger expansions, run outpainting multiple times, each time extending from the newly generated edges. This iterative approach maintains consistency.
Can outpainting change the aspect ratio of my image?
Yes. This is one of the most common uses. You can turn a 1:1 square into a 16:9 widescreen, a 4:3 into an ultrawide, or any custom ratio. Just extend the appropriate edges to reach your target dimensions.
Does outpainting work well with photos of people?
It works well for extending backgrounds around people. However, generating new body parts (extending a cropped person) can be unpredictable. For best results, keep the subject within the original frame and extend only the environment.
What is the difference between outpainting and simply adding a border?
Adding a border repeats or mirrors edge pixels, which looks artificial. Outpainting generates entirely new, contextually appropriate content. It creates new trees, buildings, sky, or whatever logically continues the scene.
Can I combine outpainting with other editing techniques?
Absolutely. A common workflow is outpainting to extend the canvas, then inpainting to fix any inconsistencies, and finally upscaling the entire result for maximum resolution.