How to Scan Documents to PDF on Android and Samsung — Free, No App Install

Every Android phone can scan documents to PDF without installing a single app. Google Drive has a scanner built in, and it's been sitting on your phone since you set it up. There's also a browser-based option for when you need more control or want to keep your scans off Google's servers.

Method 1: Google Drive Scanner (Already Installed)

Google Drive ships on every Android phone. The scanning feature is buried under the + button, and most people don't know it exists.

1. Open Google Drive. If you can't find it, search "Drive" in your app drawer.
2. Tap the + button (bottom-right corner).
3. Select "Scan." Your camera opens in scanning mode.
4. Point your camera at the document. The scanner auto-detects the page edges. Tap the capture button when the alignment looks good.
5. For additional pages: Tap the + icon after capturing to add more pages to the same document.
6. Adjust if needed. After capture, you can crop, rotate, or adjust the color (color, grayscale, or black & white).
7. Tap the checkmark to save. Choose a folder in your Drive. The scan saves as a multi-page PDF.

The Google Drive scanner does a solid job with auto-edge detection and perspective correction. For quick scans of receipts, contracts, or single-page documents, it's the fastest option on Android.

The Catch With Google Drive

• Everything goes to Google's servers. There's no "save locally only" option in the Drive scanner. Your scanned documents upload to Google Drive cloud storage. For grocery receipts, that's fine. For tax returns, medical records, or legal documents, you might not want those on Google's servers.
• Requires a Google account. You already have one if you use Android, but the scan is tied to your Google account.
• Limited perspective control. The auto-crop works well most of the time, but when it doesn't, the manual adjustment is basic. You can crop the edges but you can't do fine-grained 4-corner perspective correction.
• No page reordering. Pages are added in the order you scan them. Scanned page 7 before page 6? You have to re-scan or rearrange later in a PDF editor.

Method 2: Browser-Based Scanner in Chrome (Full Control, Full Privacy)

For documents where you want more control, or when your scans should not hit any cloud service:

1. Photograph your pages with your phone's camera app. Normal photos. Get each page in frame.
2. Open the Multi-Page Scanner in Chrome. No app. No download. No account.
3. Upload your document photos. Select all pages from your gallery at once.
4. Correct perspective. For each page, drag the four corner points to the exact edges of the document. The tool straightens and aligns each page based on your adjustments.
5. Drag to reorder. Got pages out of sequence? Drag them into the correct order.
6. Generate PDF. One combined PDF downloads to your phone's Downloads folder. No cloud upload. No account. No watermark.

Samsung-Specific Notes

Samsung Galaxy phones have a few extra scanning options beyond Google Drive:

• Samsung Camera Document Mode: Some Galaxy models (S23, S24, S25 series and newer) have a Document mode in the Camera app. When you point the camera at a document, a yellow border appears and a "Scan" button shows up. This captures a flat, corrected scan and saves it to your gallery. It works for single pages but doesn't create multi-page PDFs directly.
• Samsung Notes: The Notes app on Samsung phones has a scan feature similar to Apple Notes on iPhone. Open Samsung Notes, create a new note, and use the scan option to capture document pages.
• Bixby Vision: Older Samsung phones can use Bixby Vision to detect and extract text from documents, but this is OCR (text extraction), not document scanning to PDF.

For multi-page PDF scanning with perspective control, the browser-based scanner gives Samsung users the most flexibility since it works identically on every Galaxy model regardless of the camera app version.

Comparison: Your Android Scanning Options

Feature	Google Drive	Browser Scanner	Samsung Camera
Multi-page PDF	✓ Yes	✓ Yes	✗ Single page only
Page reordering	✗ No	✓ Drag to reorder	✗ N/A
Perspective correction	✓ Auto	✓ Manual 4-corner	✓ Auto
Privacy	✗ Uploads to Google	✓ 100% on-device	✓ Saves locally
Account required	✗ Google account	✓ None	✓ None
Install required	✓ Pre-installed	✓ No install	✓ Pre-installed
Works offline	✗ Needs internet for save	✓ Fully offline	✓ Yes

Tips for Better Scans on Android

• Use the rear camera, not the front camera. The rear camera has a much higher resolution and better autofocus. A 50MP rear camera captures dramatically sharper document scans than a 12MP front camera.
• Enable HDR if available. HDR helps balance the contrast between white paper and dark text, producing scans with better readability. Most modern Android cameras have auto-HDR that activates when needed.
• Tap to focus on the text. If the camera focuses on the background instead of the document, tap the text area on screen to lock focus. Sharp text is the difference between a usable scan and a blurry mess.
• Avoid flash. Camera flash creates a bright hotspot in the center of the page and darkens the edges. Use ambient light or a desk lamp positioned to the side.

After Scanning: Complete the Workflow

Once you have your scanned PDF:

• Too large for email? Compress it with the PDF Compressor. A 20MB scan typically drops to 3-5MB.
• Need text from the scan? The OCR tool extracts readable text from scanned pages.
• Need to merge with other PDFs? The PDF Merger combines your scan with existing documents.
• Need to split out specific pages? The PDF Splitter extracts just the pages you need.

Everything works in Chrome on Android. No apps for any of it. For the full step-by-step scanning pipeline, check our multi-page scanning guide.