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Scan to PDF

Turn photos of documents into a clean, deskewed multi-page PDF — perspective crop, automatic edge detection and a black & white document mode. Runs entirely in your browser.

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A photo of a document is not a scan. It is taken at an angle, so the page is a trapezium rather than a rectangle; the paper is grey rather than white; and the file is three megabytes of camera noise. This tool fixes all three. You mark the four corners of the page — it tries to find them for you first — and the image is warped back to a true rectangle, then rebuilt in colour, grayscale or a hard black-and-white document mode that turns paper into white and ink into black.

Pages accumulate, so a ten-page contract photographed one sheet at a time becomes one PDF in the order you shot it. You can use the device camera directly or upload photos you already took; on a phone the camera path is usually faster, on a laptop the upload path usually wins.

How it works

  1. Capture pages with the camera, or drop in photos you already have.
  2. For each page, drag the four corners onto the document's edges — auto-detect gives you a starting point.
  3. Pick colour, grayscale or black & white.
  4. Download the multi-page PDF.

What people use it for

  • Turning a signed contract photographed on a desk into a document you can email.
  • Digitising receipts for an expense claim without a scanner.
  • Getting a handwritten form into a PDF that a portal will accept.

Frequently asked questions

Is my file uploaded to a server?
No. The file is opened by JavaScript and WebAssembly running inside your own browser tab. It is never uploaded, there is no server-side processing and nothing is stored — closing the tab discards everything.
Auto-detect put the corners in the wrong place.
It is best-effort and says so — edge detection struggles on a white page against a light desk, or when a hand or a shadow crosses the border. Drag the corners yourself; the correction is applied from wherever you put them, so a hand-placed quadrilateral works exactly as well as a detected one.
Which colour mode should I choose?
Black & white for plain text you want small and crisp — it is the mode that makes a photo look like a scan. Grayscale when there are pencil marks or a stamp with texture. Colour when the colour carries meaning, such as a highlighted clause or a coloured logo on a certificate.
Can I search the text afterwards?
Not straight away — the result is an image of the page. Run it through the OCR tool to add a text layer, and the PDF becomes searchable and selectable while still looking the same.
The camera will not start.
The browser needs permission and a secure connection. Allow camera access when prompted, or in the site settings if you dismissed it once. On a device with no camera, or in a browser that blocks it, upload the photos instead — the rest of the tool works identically.

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