How to scan documents with your phone
You can scan a document in about a minute with the phone in your pocket. Here's the simple 5-step method that works on any phone — plus how to turn those scans into searchable, shareable PDFs.
Free to try · Android
Before you start
The honest version: your phone can already scan
Let's be straight — for a quick single page, your phone already has a scanner built in. On iPhone you can scan from the Notes or Files app; on Android the Google Drive app has a scan button. For most one-off scans, that's genuinely all you need.
What the built-in tools don't do well is the stuff that makes a scan actually useful later: turning the page into searchable text (OCR), summarizing or asking questions about it with AI, reliably stacking many pages into one PDF, and giving you crisp filters for faded or low-contrast paper. That's where a dedicated scanner like ScannerFlow earns its place. First, the universal method.
The method
Scan any document in 5 steps
Works with your phone’s built-in scanner or a dedicated app.
- 1
Lay the document on a flat, contrasting surface
Put the page on a desk or table that contrasts with the paper — a dark surface under white paper makes the edges easy to detect. Smooth out folds and make sure the whole page is in view.
- 2
Find good, even light
Natural daylight or a bright overhead light works best. Avoid harsh shadows and glare; if your own shadow falls on the page, move so the light is behind your phone, not behind you.
- 3
Hold the phone parallel and let it auto-detect the edges
Hover the camera flat over the page. A good scanner app (including your phone’s built-in scanner) draws a border around the document automatically. Wait for the border to lock onto all four corners.
- 4
Capture, then crop and enhance
Tap to capture — or let auto-capture fire when the page is steady. Adjust the corners if needed, then apply a filter: auto-enhance for most documents, black & white for text and receipts, color for forms and photos.
- 5
Save as a PDF and share
Add more pages if it’s a multi-page document, then export. PDF is the format almost every app and office accepts. From there you can email it, upload it, or send it to any app on your phone.
Do more with ScannerFlow
Where a dedicated scanner pays off
Built-in scanning handles the basics. ScannerFlow handles what comes next.
Searchable OCR text
On-device OCR turns every scan into real, selectable text — so you can search inside documents and copy text out instantly.
AI chat & summaries
Ask questions about a scanned contract or letter, or get a one-tap summary, powered by ScannerFlow's AI document chat.
Reliable multi-page PDFs
Stack dozens of pages into a single, correctly ordered PDF — far smoother than the built-in tools for longer documents.
Clean filters & easy export
Auto-enhance, black & white, and color filters sharpen faded paper, then export to PDF or JPEG and share anywhere.
Frequently asked questions
Can I scan documents without a separate app?
Yes. Most modern phones can scan basic documents with built-in tools — iPhone uses the Notes and Files apps, and on Android the Google Drive app has a scan button. These are great for a quick single page. A dedicated app like ScannerFlow adds searchable OCR text, AI summaries, reliable multi-page PDFs, and better filters.
What’s the best way to scan a multi-page document?
Use a scanner that keeps adding pages into a single PDF. Capture each page one after another, keep the lighting consistent, and review the page order before exporting. ScannerFlow combines all pages into one clean, properly ordered PDF.
How do I make a scanned document searchable?
You need OCR (optical character recognition), which converts the picture of text into real, selectable text. ScannerFlow runs OCR on-device after each scan, so you can search inside your documents, copy text out, and even chat with the content using AI.
How do I get the clearest possible scan?
Use even lighting with no glare, hold the phone parallel to the page, fill the frame with the document, and let edge detection lock all four corners before capturing. Then apply the auto-enhance or black & white filter to sharpen text.
Is ScannerFlow free?
ScannerFlow is free to download and free to try. Advanced features such as multi-page PDFs, AI document chat, and Cloud Sync are part of an optional subscription. There is no “free unlimited” plan.
Try a smarter scan
Get searchable OCR, AI summaries, and multi-page PDFs in one app. Free to try on Android.