You can scan a document with your phone using the built-in camera app or a free scanning app, then save or share the result as a PDF or image file

Your phone's camera is already a scanner. The fastest route is to open your phone's default camera app, position the document flat under good light, and take a photo. That photo is now a scanned image you can email, print, or store. If you need the document to look more like a professional scan — with edges straightened, shadows removed, and text sharpened — use a dedicated scanning app like Microsoft Lens, Google Drive's built-in scanner, or Adobe Scan. These apps do the cleanup work automatically and save the result as a PDF instead of a loose photo.

The difference matters if you are sending the scan to someone else or storing it long-term. A phone photo looks like a photo. A scanned PDF looks like a document. Scanning apps also make text searchable, which means you can later find a specific word inside the PDF without reading the whole thing.

Key Takeaways

  • Your phone's camera app works for basic scanning, but dedicated scanning apps like Microsoft Lens or Google Drive straighten edges and sharpen text automatically.
  • Position the document flat under bright light and hold your phone directly above it to avoid shadows and glare.
  • Scanning apps save as PDF files, which are easier to email, print, and search than loose photos.
  • You can scan multiple pages into a single PDF by taking photos of each page in sequence.
  • Most scanning apps are free and work on both iPhone and Android phones.

Using your phone's built-in camera app

Open the Camera app on your phone. Position the document flat on a table or desk in front of you. Step back or hold your phone so the entire document fits in the frame, then tap the shutter button to take the photo. The image saves automatically to your phone's photo library.

This method works when you need a quick record of something — a receipt, a handwritten note, a page from a book. The photo is readable and you can text it or email it immediately. The downside is that the edges are often crooked, shadows appear in the corners, and the text is not searchable. If the document matters — a contract, a medical record, a bill you need to file — use a scanning app instead.

Using Microsoft Lens to scan and straighten documents

Download Microsoft Lens from the App Store (iPhone) or Google Play (Android). Open the app and point your phone's camera at the document. The app shows a live preview and automatically detects the document's edges. When the edges are highlighted in blue, tap the shutter button or wait for the app to capture automatically.

Microsoft Lens straightens the image, removes shadows, and sharpens the text. You then choose to save as a PDF, Word document, or image file. Tap "Save" and select where to store it — your phone's local storage, OneDrive, or OneNote. The app is free and works on both iPhone and Android.

If you are scanning multiple pages, take a photo of each page in sequence. The app groups them into a single PDF automatically. This is faster than scanning each page separately and combining them later.

Using Google Drive's document scanner

Open Google Drive on your phone (download it free from the App Store or Google Play if you do not have it). Tap the plus icon (+) at the bottom right, then select "Scan." Point your camera at the document. The app shows a preview and highlights the document's edges in blue. Tap the shutter button to capture.

Google Drive's scanner works similarly to Microsoft Lens — it straightens edges, removes shadows, and sharpens text. After you capture, you can scan additional pages or finish. The app saves the result as a PDF file in your Google Drive. You can then download it to your phone, email it, or share a link to it.

This method is useful if you already use Google Drive for storage. The PDF appears in your Drive immediately and is accessible from any device where you are signed in. You do not need to email files back and forth.

Using Adobe Scan for professional-looking results

Download Adobe Scan from the App Store or Google Play. Open the app and point your phone at the document. Adobe Scan automatically detects the document and captures it. You can scan multiple pages by continuing to point at each new page — the app captures them in sequence.

Adobe Scan is known for producing clean, professional-looking PDFs. It removes shadows, straightens edges, and enhances text contrast. The free version saves scans to your phone and to Adobe Cloud. You can then download them, email them, or access them from another device by signing into your Adobe account.

If you scan frequently or need advanced features like automatic text recognition (OCR) or cloud storage, Adobe offers a paid subscription. For occasional scanning, the free version is sufficient.

Getting the best scan: lighting and positioning

Position the document flat on a table or desk. Use natural light from a window or turn on overhead lights. Avoid scanning under a lamp that casts shadows across the page. Hold your phone directly above the document so the camera points straight down — not at an angle. If you tilt the phone, the edges will appear crooked even after the app straightens them.

Make sure the entire document fits in the frame. If you are scanning a large page, step back or use a wider angle. If the app shows the document edges highlighted in blue or green, you are positioned correctly. Take the photo when the edges are clearly detected.

For documents with text, make sure the text is in focus. Most phone cameras focus automatically when you point at the center of the screen. If the text looks blurry in the preview, tap the screen to refocus before capturing.

Saving and sharing your scanned documents

After scanning, the app shows options to save, edit, or share. Choose your save location: your phone's local storage, cloud storage like Google Drive or OneDrive, or email directly. If you save to cloud storage, the file is accessible from any device. If you save locally, the file stays on your phone only.

To email a scan, most apps have a "Share" button that opens your email app with the PDF attached. To print a scan, save it first, then open it in a PDF reader or your phone's print menu. Most modern printers connect to your phone via Wi-Fi and appear in the print options automatically.

If you need to edit a scan after saving — crop it, rotate it, or combine multiple scans — most scanning apps include basic editing tools. You can also open the PDF in a free app like Adobe Reader or your phone's built-in PDF viewer to make changes.

Frequently Asked Questions

Can I scan a document without downloading an app?

Yes. Your phone's camera app produces a usable scan, though the edges may be crooked and the text may not be searchable. If you need a quick photo of something, the camera app is enough. For documents you plan to keep or share, a scanning app produces better results.

What is the difference between a photo and a PDF scan?

A photo is a loose image file that looks like a picture. A PDF is a document file that looks like a printed page and can be searched for text. PDFs are easier to email, print, and file. Most scanning apps save as PDF automatically.

Can I scan both sides of a document?

Yes. Scan the first side, then flip the document over and scan the second side. Most scanning apps let you add multiple pages to a single PDF. The app groups them in the order you captured them.

Is the text in a scanned PDF searchable?

Some scanning apps include optical character recognition (OCR), which makes text searchable. Microsoft Lens and Adobe Scan include this feature. Google Drive's scanner does not include OCR in the free version. Check your app's settings to see if OCR is turned on.

Where does my scanned document get saved?

That depends on which option you choose when saving. You can save to your phone's local storage, cloud storage like Google Drive or OneDrive, or email it directly. Cloud storage is safer because the file is backed up and accessible from other devices.