Most photos are not shot in the exact aspect ratio you need. A vertical product shot does not fit a 16:9 YouTube banner. A square portrait gets awkwardly cropped on a Pinterest pin. PixUnblur's AI Image Extender solves this by adding new pixels around your image while keeping the original subject untouched.
What "AI Image Extender" Means
Image extension (also called outpainting) generates new content beyond the original frame. PixUnblur analyzes lighting, color, and texture at the edges, then paints additional canvas in the same style. The middle of the image is preserved exactly as it was.
When to Use the AI Image Extender
- Convert a portrait photo into a horizontal banner.
- Add room above and below a product shot for ad copy.
- Prepare a single hero image for YouTube, Instagram, Pinterest, and X without re-shooting.
- Restore a tightly cropped photo that lost important background.
Step-by-Step
- Open the AI Image Extender on PixUnblur.
- Upload a JPG, JPEG, PNG, or WEBP file.
- Choose the target ratio or drag the canvas handles to set custom dimensions.
- Click Generate and review the preview.
- Download the result in your preferred format.
Tips for Better Results
- Leave a small margin in the original image so the AI has more context to extend.
- Avoid extreme expansions (e.g., 9:16 → 21:9 in one step). Step up gradually for cleaner output.
- For ecommerce, place the product slightly off-center so generated background appears natural.
Common Use Cases
| Workflow | Source | Target |
|---|---|---|
| YouTube thumbnail | 4:3 portrait | 16:9 landscape |
| Instagram story ad | 1:1 product | 9:16 vertical |
| Pinterest pin | landscape | 2:3 portrait |
| Display ad | square | 728×90 leaderboard |
Need Pixel-Perfect Output?
If you need an exact pixel size (for example 1920×1080 or 1080×1920), use Exact Pixel Dimensions instead. It produces output that matches the requested width and height precisely, ready for upload to ad platforms.
