Scan to PDF Free – Scan Paper Documents with Your Phone Camera

Scan paper documents with your smartphone camera and convert to high-quality PDF instantly. No app to download - scan the QR code from any desktop browser.

Step 1

Scan this QR code

Use your phone's camera app to open the scan page.

Step 2

Take your photos

Each photo becomes one page in the PDF. Tap “Done” when finished or click “Convert to PDF” above.

Waiting for your first scan…

Pages will appear here as you take them on your phone.

How it works

Scan paper documents to PDF in 3 steps

No scanner hardware needed. All you need is a desktop browser and a smartphone with a camera.

01

Open the tool on your desktop

Sign in to SupaPDF and open Scan to PDF on any desktop browser. A QR code and shareable link appear immediately - no configuration needed.

02

Scan pages with your phone

Scan the QR code or open the link on your smartphone. No app to install - it works in your phone's browser. Tap the camera button for each page. Scanned thumbnails appear live on the desktop.

03

Finalise and download your PDF

Once all pages are scanned, click Finalise on the desktop. SupaPDF merges every page into a single PDF in seconds. Optional OCR makes text selectable and searchable.

Why SupaPDF

Everything you need to scan documents to PDF

Turn any smartphone into a document scanner - no app download, no hardware, no setup.

No scanner hardware

Your smartphone camera is your scanner. Works with any modern iOS or Android device - no dedicated hardware, no drivers, no cables required.

Private & secure

All transfers use encrypted HTTPS. Scanned images are permanently deleted from our servers immediately after your PDF is ready for download.

Optional OCR

Run optical character recognition on your scans to produce a searchable, copy-pasteable PDF. Just select your document language before finalising.

Full developer API

Automate document scanning workflows with the SupaPDF REST API. Create sessions, upload images from any device, and retrieve the merged PDF programmatically.

Developer API

Scan to PDF via the REST API

Create a scan session, upload images from any device, then finalize to get a merged PDF. Supports optional OCR for searchable output.

# Step 1 - Create a scan session
curl -X POST https://api.supapdf.com/v1/scan-sessions \
  -H "Authorization: Bearer YOUR_API_KEY"
# → returns session.id, session.token, session.mobile_url

# Step 2 - Add a slot for each page (run on the scanning device)
curl -X POST https://api.supapdf.com/v1/scan/SESSION_TOKEN/slots \
  -H "Authorization: Bearer YOUR_API_KEY"
# → returns slot.upload_url

# Step 3 - Upload each scanned image to its slot
curl -X PUT "SLOT_UPLOAD_URL" \
  --data-binary @page1.jpg

# Step 4 - Finalise (add language for OCR, omit for image-only PDF)
curl -X POST https://api.supapdf.com/v1/scan-sessions/SESSION_ID/finalize \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"language": "eng"}'
# → returns result_job_id

# Step 5 - Poll until finished
curl "https://api.supapdf.com/v1/jobs/RESULT_JOB_ID?include=tasks" \
  -H "Authorization: Bearer YOUR_API_KEY"

Create a session on the desktop, open mobile_url on the scanning device, add one slot per page and PUT each image to its upload_url, then call finalize. Pass {"language":"eng"} to the finalize request to run OCR and produce searchable text.

FAQ

Frequently asked questions

Everything you need to know about scanning documents to PDF with SupaPDF.

Ready to scan your first document?

Free to use · No account required · Instant download