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Scan to PDF Free — Online Document Scanner, No Signup

Scan documents to PDF free online — no signup, no software. Turn your phone into a scanner, convert photos of contracts, receipts, forms to PDF.

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Drag & drop your images here

Supports: JPG · PNG · HEIC · WebP · BMP · GIF · TIFF · SVG

Need to scan a document to PDF free online? Our online PDF scanner lets you turn photos of paper documents into clean, shareable PDFs in seconds — without a scanner, without software, without paying anything. Photograph the page with your phone, upload, convert. Your file never leaves your browser.

Whether you call it scan to PDF, scan2pdf, PDF scanner online, document scan, or just “turning paper into a PDF” — this is the fastest free way to do it.

How to scan a document to PDF online

Photograph your document — use your phone camera in good light. Hold the phone level above the page, fill the frame, keep steady.
Upload the photo — drag and drop into the converter above, or tap “Choose File” to browse. Works with PNG, JPG, HEIC.
Click Convert — the photo becomes a clean PDF in your browser. No server upload.
Download the PDF — one click, ready to share via email, WhatsApp, Telegram, or save to cloud.

The whole process takes under five seconds. You can scan to PDF free without an account, an email, or a credit card. No watermark on the output, no quality loss, no daily limit beyond 5 conversions per day on the web (unlimited on the mobile app).

What “free online scanner to PDF” actually means

Most “free” scanner-to-PDF tools either watermark the output, paywall after the first scan, or upload your document to their servers. ConvertPDF is different:

No watermark on the PDF. Ever.
No signup, no email, no credit card. Land on the page, scan, download.
No server upload. The conversion runs entirely in your browser via JavaScript — your document image stays on your device the whole time.
5 free conversions per day on the web. Unlimited on the mobile app.

That last point is critical for scanned documents specifically. Documents you scan often contain sensitive information: signatures, passport pages, tax forms, contracts with personal data, medical records. Uploading them to a stranger’s server is a real risk most users overlook. Browser-based conversion eliminates that risk — there is no server to leak from.

Scan to PDF on iPhone

iPhone has two ways to capture a document — both work with ConvertPDF:

Notes app scanner (recommended for paper documents): open Notes → tap the camera icon → Scan Documents. Notes auto-detects edges, corrects perspective, and saves a clean image. Then open ConvertPDF in Safari, upload the image, Convert, Save.
Camera app: just take a photo. Works for receipts, business cards, anything that fits in frame.

For multi-page documents — contracts, leases, multi-page forms — install our free ConvertPDF iOS app. It supports batch scanning up to 20 pages with drag-to-reorder, no daily limit, and works offline.

iPhone screenshots and photos can be PNG or HEIC depending on your camera settings. Both formats work in the converter — auto-detected on upload.

Scan document to PDF on Android

Android has three solid options for scanning paper documents:

Google Drive’s built-in scanner: open Drive → tap + (bottom right) → Scan. Drive captures the page, applies perspective correction, saves to your account. Download the JPG, upload to ConvertPDF, convert.
Microsoft Lens (free app): purpose-built document scanner with auto-crop and OCR. Save as image, then convert with ConvertPDF.
Camera app: just photograph the page in good light.

For batch scanning multiple pages into a single PDF without uploading to Google or Microsoft, install the ConvertPDF Android app — up to 20 pages, drag to reorder, offline support, no daily limit.

Scan to PDF on Mac and Windows desktop

If you have a physical scanner connected to your Mac (USB or network), it usually saves scans as PNG, JPG, or TIFF. Drag any of those into ConvertPDF — convert to PDF in your browser. No need to use the bundled scanner software’s PDF export, which often watermarks or limits format options.

For Windows users: the same flow works with Windows Scan app, the bundled scanner driver, or any third-party scanner software. Save as image, drop into ConvertPDF, get a clean PDF.

If you don’t have a physical scanner: photograph the document with your phone, AirDrop / sync it to your computer, drop it into the browser. The phone-as-scanner workflow is faster than going to find a flatbed scanner for most casual needs.

Scan multiple pages into one PDF

Single-photo scanning is fine for receipts and one-page forms. For multi-page documents — contracts, statements, application forms, signed agreements — you need to combine several scans into one PDF in the right order.

Two ways:

Web — Merge Images to PDF tool: upload photos of each page, drag to reorder, click Convert. One PDF with pages in the order you set.
Mobile app: the ConvertPDF iOS and Android apps have batch scanning built in — photograph page after page, the app stitches them together automatically. Drag-to-reorder, up to 20 pages per session, offline.

For the best multi-page scan quality, keep lighting consistent across pages and photograph from the same angle. Mixed exposure makes the final PDF look uneven.

Tips for clean phone scans

Phone-as-scanner produces excellent PDFs when you control three things:

Lighting: natural daylight near a window is best. Avoid overhead shadows (don’t stand directly over the page with a light source behind you). Bright, even light gives the cleanest scan.
Angle: hold the phone directly parallel to the page. Tilting causes keystone distortion that the converter can’t fully correct.
Frame: fill the frame with the page, with maybe 1–2 cm of border showing on each side. Don’t include desk clutter — it makes the PDF look messy.
Steady: prop the phone against books, or use both hands. Blur ruins OCR if you later want to make the PDF searchable.
Resolution: phone cameras default to full resolution — don’t switch to “small” mode for scanning. More pixels = sharper text.

Why scan to PDF instead of just sending a photo

A photo (JPG, PNG, HEIC) and a PDF of the same image look identical on a screen but behave very differently when shared:

Email and corporate filters often block bare image attachments but pass PDFs through. Sending a “receipt.pdf” reaches inboxes that bounce “receipt.jpg”.
Universal viewing: PDF renders identically on every device. Photos sometimes display tiny on desktop or sideways on a phone if EXIF orientation is off.
Combining: multiple photos become one organized document instead of an awkward email with 5 attachments.
Print fidelity: PDFs print at the correct size automatically; printing a JPG often requires fiddling with margins and scale.
Form submission: most online forms (insurance, tax, university) explicitly want PDF, not images.

Merge Images to PDF — combine multiple scanned pages into one PDF with drag-to-reorder
Screenshot to PDF — for screen captures, not paper documents
HEIC to PDF — if your iPhone scan is HEIC
Image to PDF — generic image-to-PDF for any format
How to scan and edit a PDF document — if you need to OCR a scanned PDF for editing

Frequently Asked Questions

Yes — ConvertPDF is completely free with no signup. Photograph your document with your phone, upload the photo, and download the PDF. No watermark, no daily limit on the mobile app, 5 free conversions per day on the web. No credit card, no trial. Works in any browser on any device.

Yes. Modern smartphone cameras produce high-resolution images that convert beautifully to PDF — you don't need a flatbed scanner, a dedicated scanner app, or office hardware. Take a clear photo in good light, upload it to ConvertPDF, and the conversion runs in your browser. The phone effectively becomes a portable document scanner.

Use the built-in camera or the Notes app (tap the camera icon → Scan Documents) to capture the page. Open ConvertPDF in Safari, upload the photo from your library, click Convert, and Save to Files. For multi-page documents like contracts, install our free iOS app — it supports batch scanning and merging up to 20 pages into one PDF with drag-to-reorder.

Photograph the document with the Camera app or use Google Drive's built-in scan feature (Drive → + → Scan). Open ConvertPDF in Chrome, upload the photo, click Convert. For batch scanning multiple pages into one PDF, install the free Android app — it handles up to 20 pages per session and works offline.

If you already have a PDF that was created by scanning (image-based PDF) and you want a PDF with selectable text, that's an OCR conversion — see our guide on how to scan and edit a PDF document. ConvertPDF's scan-to-PDF tool here handles the input direction: photos of paper documents → PDF. For the OCR direction (turning a scanned PDF into editable text), Adobe Acrobat or Google Drive (open with Docs) are the standard tools.

No — ConvertPDF doesn't artificially distress clean PDFs to look hand-scanned. We do the opposite: take real photos of paper documents and turn them into clean, sharp PDFs. The 'make PDF look scanned' use case usually means trying to pass off a digitally generated document as physically signed, which has legal risks we don't want to enable.

How it works

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1. Drop your file

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2. Click Convert

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3. Download PDF

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Your file never leaves your device

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Converts in seconds

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No watermarks, no registration

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