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Scanning Documents With Your Phone

Turn your phone into a document scanner — auto-deskew, multi-page capture, server-side OCR, GPS-stamped provenance.

Scanning Documents With Your Phone

The Papyrus mobile app turns any modern phone into a competent document scanner. Useful for: field inspections, in-the-moment capture of paper documents, processing supplier invoices that arrive in physical form.

Quick scan

  1. Open the Papyrus mobile app
  2. Tap the camera (✚) button on the home screen
  3. Point at the document
  4. App auto-detects edges — green outline confirms good framing
  5. Tap the shutter
  6. Multi-page: tap “Add page” for the next side
  7. Tap “Done” when finished
  8. Review the deskewed result
  9. Configure: destination folder, tags, classification
  10. Tap “Upload”

The document queues for upload. If you're online, it starts immediately; if offline, it waits for connectivity.

What the app does to your photo

Before upload:

  • Edge detection: finds the document boundary
  • Perspective correction: makes the captured rectangle truly rectangular even if you tilted the phone
  • Deskew: rotates to align horizontally
  • Contrast normalisation: improves OCR readability
  • Multi-page combine: merges multiple captures into one PDF

What it doesn't do:

  • Erase visible marks (signatures, stamps, handwriting stay)
  • Remove redacted content (you'd want a real redaction tool for that)
  • Translate or summarise (the Copilot does that, later)

GPS and timestamp

By default, photos capture:

  • GPS coordinates (with accuracy estimate)
  • Device timestamp
  • Device model fingerprint
  • Your signed-in identity

This metadata is stored alongside the document. For field-officer workflows (NGO programme delivery, inspection records, county-level service evidence), this provenance is genuinely useful for audit.

If you don't want GPS captured for a specific scan, toggle GPS off in the camera screen (gear icon).

Multi-page documents

For a multi-page document:

  1. Capture page 1 (auto-detect, shutter)
  2. Tap “Add page”
  3. Capture page 2
  4. Repeat for as many pages as needed
  5. Tap “Done”

The pages combine into one PDF. Order matches the order you captured.

Reorder, retake, delete

After capture but before upload:

  • Reorder: long-press a page thumbnail and drag
  • Retake: tap a page → “Retake”
  • Delete: tap a page → trash icon

Quality tips

  • Hold steady: use both hands; rest elbows
  • Even lighting: avoid hard shadows
  • Plain background: the document on a contrasting colour helps edge detection
  • Distance: fill the viewfinder with the document; not too close, not too far
  • Glare: avoid shooting directly at glossy paper under bright light

OCR happens server-side

Once uploaded, OCR runs on the server (typically within 30 seconds). The on-device capture pipeline doesn't OCR locally — that keeps the app fast and battery-friendly.

If you want offline OCR (rare), the on-device classification feature is closer to what you want.

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