The fastest way: use your phone's built-in scanner app

Most phones come with a document scanner already installed. On Android, it's called Google Drive or Google Lens depending on your phone model. On iPhone, it's the Notes app or the Files app. You don't need to download anything — the scanner is already there.

Open the app, look for a camera icon or a plus sign, and select "Scan Documents" or "Scan" from the menu. Point your phone's camera at the document, hold it steady about 6 to 12 inches away, and tap the shutter button. The app will automatically crop the edges, straighten the image, and save it as a PDF or image file. Most phones will let you scan multiple pages in one session and combine them into a single file.

The whole process takes under a minute per page. The result is a clean, readable file you can email, upload, or store on your phone.

Key Takeaways

  • Your phone's built-in scanner (Google Drive on Android, Notes on iPhone) is faster and produces better results than taking a regular photo.
  • Hold your phone 6 to 12 inches from the document, keep it level, and let the app automatically crop and straighten the image.
  • You can scan multiple pages at once and save them as a single PDF file without downloading extra apps.
  • If your phone's built-in scanner doesn't work well, free apps like Adobe Scan or Microsoft Lens offer more control over image quality and file format.

Where to find the scanner on Android phones

On most Android phones, open Google Drive and tap the plus sign in the bottom right corner. Select "Scan" from the menu. If you don't see this option, your phone may have a separate Google Lens app — open it and tap the camera icon, then look for a "Scan" or "Document" mode.

Some Android phones also have a built-in scanner in the Files app or the camera app itself. Check your camera app's menu — swipe left or right to see if there's a "Document" or "Scan" mode listed alongside Photo and Video.

If none of these work, your phone model may not have a built-in scanner. In that case, you can use a free app instead (see the next section).

Where to find the scanner on iPhones

Open the Notes app and start a new note. Tap the camera icon at the bottom, then select "Scan Documents." Point your phone at the document and tap the shutter button. The app will automatically detect the edges and ask you to confirm before saving.

Alternatively, open the Files app, navigate to the folder where you want to save the scan, tap the three dots in the bottom right, and select "Scan Documents." This method saves the file directly to your chosen folder instead of creating a note first.

Both methods produce the same quality scan. Use whichever app you're more comfortable with.

Free apps if your phone's built-in scanner isn't working

If your phone doesn't have a built-in scanner or the results are blurry, try Adobe Scan (available on both Android and iPhone) or Microsoft Lens (also on both platforms). Both are free and work similarly to your phone's built-in scanner — point, tap, and the app crops and straightens automatically.

Adobe Scan saves files as PDFs by default and lets you organize scans into folders. Microsoft Lens integrates with OneDrive and Microsoft Office, so if you use those services, it may be more convenient. Neither app requires a paid subscription to scan documents.

Download whichever one appeals to you, open it, and follow the same process: tap the camera button, hold your phone steady, and let the app do the work.

Tips for getting a clear, readable scan

The most common mistake is holding the phone too close or at an angle. Keep your phone level with the document and about 6 to 12 inches away — roughly the distance from your hand to your elbow. Make sure the entire document fits in the frame before you tap the shutter button.

Lighting matters. Scan in natural light or under a lamp, but avoid glare or shadows falling across the document. If the document has small text, move slightly closer (but stay within the 6 to 12 inch range) so the text is sharp and readable in the final scan.

If the app's automatic crop or straightening looks wrong, most scanners let you adjust the corners manually before saving. Tap "Edit" or "Adjust" and drag the corners to match the actual edges of the document.

How to save and organize your scans

Most scanner apps save files to your phone's default storage location — usually a "Scans" folder or directly to Google Drive or OneDrive. You can rename the file right after scanning by tapping the filename and typing a new name.

If you scanned multiple pages, the app will ask whether you want to combine them into one PDF or save them separately. Combining them is usually the better choice if the pages belong together (like a multi-page contract or letter). If they're unrelated documents, save them separately so you can find them more easily later.

Once saved, you can email the file, upload it to a cloud service like Google Drive or Dropbox, or print it from your phone. Most phones let you share the file directly from the scanner app — look for a share icon or button.

When to use your phone's camera instead of a scanner

Use the scanner app for documents with text you need to read or search later — contracts, receipts, bills, forms. The scanner's automatic straightening and contrast adjustment make text much clearer and easier to read on screen or in print.

Use your regular camera app if you're taking a photo of something that doesn't need to be a formal document — a whiteboard, a handwritten note, or a photo you want to keep. The camera app is faster and doesn't try to crop or straighten, which is what you want in those cases.

If you need to extract text from a scanned document (like copying an address or account number), some scanner apps have built-in text recognition. Check your app's menu for an option called "Extract Text," "OCR," or "Text Recognition." This feature is usually free but works better on clean, well-lit scans.

Frequently Asked Questions

Can I scan a document that's folded or wrinkled?

Yes, but flatten it as much as possible first. The scanner app works best on flat documents because it relies on edge detection. If the document is badly creased, the app may crop incorrectly or the text may look distorted. Smooth it out gently with your hand before scanning.

What file format should I save my scan as?

PDF is the best choice for most documents because it preserves formatting and works on any device. If you need to edit the text later, save as an image file (JPG or PNG) instead. Most scanner apps default to PDF, which is fine for storing and sharing documents.

How much storage space do scans take up?

A single page scan is usually 500 KB to 2 MB depending on image quality and file format. A 10-page document might be 5 to 20 MB. If storage is tight, you can delete the scan from your phone after uploading it to cloud storage like Google Drive or OneDrive.

Can I scan a document that's larger than my phone screen?

Yes. The scanner app will prompt you to scan multiple sections and stitch them together, or you can scan just the part that fits and crop the rest. Some apps handle large documents better than others — if your phone's built-in scanner struggles, try Adobe Scan or Microsoft Lens instead.

What if the scan comes out blurry?

Hold your phone more steady, move it closer to the document, or improve the lighting. If the text is still blurry after rescanning, check whether your phone's camera lens is clean — wipe it gently with a soft cloth. Older phones sometimes have weaker cameras that produce softer scans, but the text should still be readable.