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Document Scanner – Turn a Photo into a Flat Scan
- Files stay on your device
- No sign-up
- No watermark
- No daily limit
- Full resolution
Quick answer
Scan a photo or document online:
- Take a photo of the page (or choose one from your gallery).
- Drag the four corners to the page edges; the scan is straightened.
- Pick a filter (B&W for forms), then download JPG or PDF. Need a smaller file? Use compress PDF to 100 KB.
Scan one page manually or select multiple document photos together. Batch scan straightens each page, applies one filter, shows every output preview and lets you save one PDF or a ZIP of JPG/PNG scans.
Turn a phone photo into a straight, clean scan – no app, no upload.
- 1 Upload
- 2 Adjust & process
- 3 Download
Scan multiple pages or photos
Upload preview · check auto-detected crop
Review each photo before scanning. If the green crop corners are off, choose Adjust crop and drag the handles by hand.
Each scan will be placed on its own A4 page in one multi-page PDF.
PDF page preview
Drag the 4 round handles onto the corners of the page.
How to use
How to use the Document Scanner
- Take a photo of the page on a darker, plain surface in good light, then choose it here.
- Check the four corner handles. Drag any that are off so they sit exactly on the page corners.
- Press Scan. The page is warped into a flat rectangle.
- Choose Original, Enhanced or Black & White, then download a JPG or a PDF.
Auto-detection works best when the paper is clearly brighter than the table behind it. If it guesses wrong, just drag the handles – it takes a few seconds. The Black & White filter uses adaptive thresholding, which removes shadows and makes text crisp for forms and printing.
🔒 Privacy: this tool runs entirely in your browser using JavaScript. Your files are never uploaded to Crop Desk or any other server, there is no sign-up needed, and you can even use it offline once the page has loaded.
FAQ
Frequently asked questions
Do I need to install an app?
No. It runs in any modern browser on Android, iPhone or desktop.
Why are the corners not detected?
Detection needs contrast between the page and the background. On a white table or with heavy shadows, place the handles by hand.
Which filter should I use for forms?
Black & White gives the cleanest text and smallest files. Use Enhanced for photos, stamps or coloured documents.
Is my photo uploaded?
No. Detection, warping and filters all run on your device.