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Turn a paper document into a clean PDF using a camera. Pages are captured, the paper edge is detected automatically so the background is cropped away, perspective is corrected so the page is square, and shadows are reduced so a photo looks like a scan. Multiple pages, reordering, rotation and per-page enhancement are all there. Nothing is uploaded, no app is needed, no account is required, and there is no watermark on the output.
Scan documents to PDF with your phone camera free — automatic edge detection, perspective correction and shadow removal. No watermark, no app, no sign-up. Nothing is uploaded, so the scan never leaves your device.
Even light, no shadow across the page, and the camera roughly parallel and 20 to 30 cm above. Perspective correction fixes an angle, but it cannot fix uneven lighting across a page, and a gradient across text is the difference between a readable scan and an unusable one. Move to a window rather than using a ceiling light.
Greyscale instead of colour, at a lower resolution, and compression afterwards. A text-only page in greyscale at moderate resolution is a fraction of the colour size and is perfectly legible on screen. Keep full colour for anything with a signature, a seal or a photograph in it.
Contrast. A white page on a white table has no detectable boundary. Put the page on a dark surface, or a dark sheet under a white page, and the detection becomes trivial. A patterned deskcloth is the other common cause — the pattern gives the detector a false edge.
Capture the front of every sheet, then flip and capture the back, then reorder so the sheets are whole. Or use Alternate and Mix if the pages came out as separate files. The order is the only fiddly part, and the drag-to-reorder view is what makes it a two-minute job.
No. Capture, edge detection, perspective correction and enhancement all run in this browser tab on your device. This is the tool where uploading would be least acceptable, since a scan is often a passport, a signature page or a payslip.
A resolution matched to the device, following the device's own tiers — around 300 DPI on a desktop-class machine, lower on a phone. The chosen resolution and the resulting file size are shown, so a 20 MB scan is visible before you export rather than after.
Well on a page against a plain, contrasting background. It struggles with a page on a patterned desk, a dark page on a dark surface, or a curled edge. The detected corners are always shown and draggable, so a bad detection is a two-second correction rather than a retake.
Colour scans are large — a few megabytes per page. A 20-page colour scan is easily 40 MB. Use the greyscale or high-contrast enhancement, or compress afterwards, when the document only needs to be readable rather than beautiful.
Yes. Capture as many pages as you like, drag to reorder, rotate, and delete any that came out badly. Adding pages incrementally is how a multi-page document gets assembled without re-shooting it.
Not until OCR runs. A scan is a picture, so the PDF has no text layer. Run OCR afterwards if you need to search or copy, and it will be a local operation too.
Yes — add images from your gallery instead, or use a flatbed scanner and feed Images to PDF. The same edge detection and enhancement apply to images you add rather than capture.
Yes. Free, no account, no watermark, no app install, and no upload. Add it to your home screen and it behaves like an app, working offline once cached.
More convert to pdf — all free, no upload.