zerouploads

Scan Documents to PDF

Photograph a page or pick one from your gallery. Drag the corners, and it comes out flat, white and straight. Nothing is uploaded.

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Photo → PDFnothing added yet

The page and its corners

Cornersno page

Add a photo of a page. On a phone, Add pages opens the camera.

nothing to show—

Pages0

    0 flattened0 to go

    Cleanup
    The file

    Your browser flattens every page and writes the PDF here, in this tab. Nothing is uploaded and nothing is stamped on it.

    Add a photo of a page to start

    How it works

    1. 01

      Add your pages

      Take a photo, or pick pictures you already have. Add as many as you like.

    2. 02

      Drag the four corners

      Put one handle on each corner, then turn the photo until it reads the right way up.

    3. 03

      Save it

      Name it, pick a page size, and get one PDF. Or take the flattened pictures on their own.

    How a photo becomes a flat page

    A page you photograph is never a rectangle. You hold the camera at an angle, so the far edge of the paper is further away and comes out shorter. The page lands in the picture as a four-sided shape, not a rectangle.

    The four handles tell this tool where that shape is. From those four points it works out the view you took the photo from. Then it reads the picture back the other way. For each pixel of the flat page, it asks which pixel of your photo that came from. The page comes out square, and the writing comes out straight.

    Then it takes the lighting out. A lamp above your desk makes one side of the paper brighter than the other, and your own hand casts a shadow over the rest. The tool blurs the page until only that lighting is left, then divides the page by it. A shadow dims the ink and the paper by the same amount, so dividing cancels it and the paper comes back to white. A brightness slider cannot do this. It lifts the shadow and the ink together, and the page goes grey.

    Four corners, not a crop
    A crop cuts a rectangle out of the picture. This pulls a four-sided shape back into a rectangle, so an angled photo comes out straight.
    Shadows removed
    The page is divided by its own lighting, so grey paper goes white and the ink stays dark.
    Up to 2400 pixels
    About 300 dots per inch on A4. That is sharper than the text on the page, and the file stays small.
    No watermark, ever
    No account, no page limit and nothing stamped on your document.

    Why this one has no watermark

    Scanner apps put a watermark on free scans because the scan happens on their servers. Servers cost money every month, so the free tier has to push you to pay. Your contract and your passport go up there to be processed.

    None of that happens here. Your browser already has everything the job needs, so the photo never leaves the tab. There is no server to pay for. That is why there is no page limit, no account, and nothing stamped across your document.

    You can check this. Turn off your internet after the page loads and scan anyway. It still works, because there was never anything to send.

    Frequently asked questions

    Is my document uploaded anywhere?
    No. The photo is read, flattened and written back inside this tab. You can turn off your internet after the page loads and it still works.
    Why do I have to drag the corners myself?
    Finding the page on its own needs a large extra download, and it still guesses wrong on a dark desk or a pale page. Four handles take a few seconds and are right every time.
    Can I take the photo here, or only pick one?
    Both. On a phone, Add pages opens your camera. On any device you can pick pictures you already have.
    Which cleanup should I use?
    Whiten for most pages. B&W for plain text, which makes the smallest file. Photo if the page has a picture on it you want to keep.
    My photo came out sideways. Can I turn it?
    Yes. The three buttons above the photo turn it and mirror it, and the photo turns on screen as you press them. What you see is what the PDF gets.
    Can I make the PDF A4 so it prints properly?
    Yes. Page size offers A4 and US Letter as well as the size of the scan itself. Each page is centred on the sheet with a small margin.
    How many pages can one PDF have?
    No limit is set here. Your browser holds the whole document in memory, so a phone runs out of room before the tool does.
    Can I get the pictures instead of a PDF?
    Yes. Download images gives you the flattened pages. One page comes as a single file, and several come as a zip.
    Does it read the text on the page?
    Not yet. Use the image to text tool on a page you have saved from here.

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