Source: https://restorebunny.com/tools/perspective-correction/

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# Four-Corner Perspective Correction

Mark the four corners of a rectangular object and straighten it into a chosen output size. Process the perspective warp locally.

Free · No signupFiles stay on your device

**Choose an image**Up to 4 MP / 20 MB per image

Output widthOutput height

**Give your product a new setting**

Create a reviewed product scene and listing kit. One credit per generation.

[Open Product Photo Studio](<https://restorebunny.com/signup/?from=seo-content&source=%2Ftools%2Fperspective-correction%2F&view=product>)

## How to use four-corner perspective correction

1. Choose your local image and the task-specific settings below.
2. Create the result and inspect its details.
3. Download your file without creating an account.

## A practical example

Select top-left, top-right, bottom-right and bottom-left around a photographed page. A 900 × 1200 output maps those corners onto a rectangle.

## Frequently asked questions

Are my files uploaded?

No. This utility runs in your browser. Your photos and settings are not sent for processing.

What should I check before using the output?

Choose a flat, convex quadrilateral. This cannot flatten curved pages or recover unreadable text, and the chosen ratio can distort an unknown shape.

## Keep working on your photo

- [All free image tools](<https://restorebunny.com/tools/>)
- [Prepare image dimensions](<https://restorebunny.com/tools/image-resize/>)

[Browse all free tools](<https://restorebunny.com/tools/>)

By RestoreBunny · Reviewed 2026-10-25. Utilities use local calculations or [browser image processing](<https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas>). The download button identifies the output format. Animated images export one decoded frame. Keep your original files.