▧ Image tools

Document Scanner with Edge Detection

Choose a photo of a paper page. The tool finds its outline, corrects the viewing angle, and makes a color, grayscale, or black-and-white PNG scan.

The threshold applies only to black and white mode. Use a contrasting background around the paper.

Choose a file to begin
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This tool runs in your browser. Selected files are not sent to our server.

How to use it

  1. Photograph the paper against a contrasting background.
  2. Choose the image and a color, grayscale, or black-and-white mode.
  3. Review the detected and straightened page, then download PNG.

What to know

Edges are detected automatically. Poor light, a matching background, or hands covering the page can prevent detection; take another photo if needed. This tool does not OCR text. Input limit: 20 MB and 20 megapixels; output is at most 4096 pixels per side. The image is not uploaded.

Frequently asked questions

What if no paper edge is found?

Place the page on a flat, contrasting background and photograph it again.

Will the scan contain editable text?

No. This straightens an image; use an OCR tool to extract text.