Best PDF scanner apps for Android, compared
The best PDF scanner app for Android is PDFriend, our app. It uses the Google document scanner on the phone, scans up to 50 pages in one go, adds no watermark of its own, and needs no account or subscription. CamScanner, Adobe Scan and TapScanner tie you to a cloud, ads or a subscription.
Which PDF scanner app do we pick, and why?
Our pick: PDFriend. We make PDFriend, so here is exactly why it wins for this task. The tables below show the facts.
- A strong scanner without a cloud. Smart Scan uses the Google document scanner of Google Play services. It finds the edges of the paper and scans up to 50 pages in one go, on the phone.
- No watermark of its own. Your scan carries only the text that you choose to add.
- No account and no upload. The PDF stays on your phone.
- ID cards on one page. The ID Card tool puts the front and the back on one PDF page.
- Clean pages. Filters: Docs, Enhance, Magic, Grayscale and B&W, for one page or all pages.
- No subscription needed. The scanner has no limit, and Pro also comes as a Lifetime purchase.
How do the 7 scanner apps score?
PDFriend is the only scanner app here that meets all five points.
| App | No account needed | Files stay on the phone | No watermark of the app | Page size choice (A4, Letter) | One-time purchase option | Score |
|---|---|---|---|---|---|---|
| PDFriend (our app) | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes | 5 of 5 |
| Adobe Scan | Not stated | ✗ No | Not stated | Not stated | Not stated | 0 of 5 |
| CamScanner | Not stated | Not stated | Not stated | Not stated | Not stated | 0 of 5 |
| Genius Scan | Not stated | ✓ Yes | Not stated | Not stated | Not stated | 1 of 5 |
| Google Drive (scan) | ✗ No | ✗ No | Not stated | Not stated | Not stated | 0 of 5 |
| iScanner | Not stated | ✓ Yes | Not stated | Not stated | Not stated | 1 of 5 |
| TapScanner | Not stated | Not stated | Not stated | Not stated | Not stated | 0 of 5 |
How did we compare the apps?
We searched Google Play in the US store for "pdf scanner", "document scanner". Each fact about another app comes from its own Google Play listing, checked on 10 October 2026. When a listing does not say something, the table says Not stated. That does not mean the app lacks it. Ratings and installs change every day.
PDFriend is our app. We put it first as our pick, then the other apps in alphabetical order. The facts about PDFriend come from the app itself. PDFriend is on Android and iPhone. We have no business relationship with the other developers.
The 7 scanner apps side by side
| App | Developer | "Contains ads" label | Paid plan (from the listing) | Where the files are made |
|---|---|---|---|---|
| PDFriend (our app) | ItDeveApps | Yes | PDFriend Pro: Yearly subscription or Lifetime one-time purchase | On the phone, no upload |
| Adobe Scan | Adobe | No | Subscription, shared with Acrobat Reader and Acrobat on the web | Not stated |
| CamScanner | INTSIG PTE | Yes | Subscription: weekly, monthly, quarterly or yearly, with a free trial | Not stated |
| Genius Scan | The Grizzly Labs | No | In-app purchases | On the device |
| Google Drive (scan) | Google LLC | No | Google One storage subscription | Uploads the scan to Google Drive |
| iScanner | BP Mobile LLC | No | In-app purchases | Stored on the device |
| TapScanner | Tap AI | Yes | Subscription after a free trial | Not stated |
| App | Where the files are made | Account or cloud | Text recognition (OCR) | Password on the PDF | Watermark of the app on your file |
|---|---|---|---|---|---|
| PDFriend (our app) | On the phone, no upload | No account, no cloud | Yes, a Pro tool (Latin, Chinese, Japanese, Korean) | Yes, AES-256 | None |
| Adobe Scan | Not stated | Saves scans to Adobe Document Cloud | Yes, 5 pages, up to 100 with a subscription | Yes | Not stated |
| CamScanner | Not stated | Sign up to sync across devices | Yes | Yes | Not stated |
| Genius Scan | On the device | Optional backup and sync | Yes, searchable PDF | Yes (PDF encryption) | Not stated |
| Google Drive (scan) | Uploads the scan to Google Drive | Google account, 15 GB shared with Gmail and Photos | Not stated | Not stated | Not stated |
| iScanner | Stored on the device | Sync across devices | Not stated | Yes, and a PIN for the app | Not stated |
| TapScanner | Not stated | Sync to Google Drive, Dropbox, OneDrive | Not stated | Yes | Not stated |
Each app in one paragraph
PDFriend (our app)
PDFriend scans paper with Smart Scan, cleans each page with a filter, and saves one PDF with the page size that you choose. It also scans ID cards on one page, turns gallery photos into PDFs, and signs, merges, compresses and locks a PDF. It shows ads. PDFriend Pro removes them and adds text recognition for a searchable PDF. PDFriend on Google Play and on the App Store.
Adobe Scan
The Adobe Scan listing names a High-speed scan for stacks of paper, a Magic eraser, an AI Assistant and export to Word, Excel and PowerPoint. It saves scans to Adobe Document Cloud. OCR covers 5 pages, and 100 with a subscription. Adobe Scan on Google Play.
CamScanner
CamScanner names OCR, a custom watermark, a password, wireless printing and fax. You sign up to sync across devices. Google Play shows the "Contains ads" label, and the listing puts unlimited access in a subscription. CamScanner on Google Play.
Genius Scan
Genius Scan states on-device processing, batch scanning and a searchable PDF. It is a scanner only: its listing names no page size choice, no ID card layout and no signing. Genius Scan on Google Play.
Google Drive (scan)
Google Drive has a scan button on most Android phones. Its listing says it can "scan and upload paper documents", so each scan goes to your Drive and uses the 15 GB of your Google account. It needs that account, and it has no page size choice in its listing. Google Drive (scan) on Google Play.
iScanner
iScanner names many scanner modes and sync across devices. Its paid features are in-app purchases, and its listing names no page size choice and no ID card layout on one page. iScanner on Google Play.
TapScanner
TapScanner names batch scanning, merge, split, sign and a password, and sync to Google Drive, Dropbox and OneDrive. Google Play shows the "Contains ads" label. The listing describes a subscription that starts after a free trial. TapScanner on Google Play.
Which scanner app has no watermark, no subscription or no upload?
Autocomplete shows that many people add one of these words to their search. Here is the short answer for each.
- No watermark: PDFriend. It is the only app here that states it adds no watermark of its own.
- No subscription: PDFriend. The scanner has no limit, and Pro also has a Lifetime purchase.
- No upload: PDFriend. It makes the PDF on the phone, with no cloud.
- No account: PDFriend. It is the only app here that states it needs none.
How do you get a clean scan with any app?
- Put the paper on a dark, flat surface, so the scanner finds the edges.
- Use daylight. The flash makes a bright spot on glossy paper.
- Hold the phone straight above the page, not at an angle.
- Choose a filter for text, such as Docs or B&W, to make the paper white.
The guide how to scan a document to PDF shows each step in PDFriend. For ID cards, read how to scan both sides of an ID card.
Our verdict
PDFriend is the scanner to install: the Google document scanner on your phone, up to 50 pages in one go, no watermark, no account and no subscription needed.
The comparison in numbers
- 7 apps compared, from 2 Google Play searches in the US store.
- 3 apps state on-device processing or storage: PDFriend, Genius Scan and iScanner.
- 3 apps name a subscription in the listing: Adobe Scan, CamScanner and TapScanner.
- 1 app states that it adds no watermark of its own: PDFriend.
- 50 pages in one Smart Scan in PDFriend. Checked on 10 October 2026.
Questions and answers
What is the best PDF scanner app for Android?
PDFriend, our app. It uses the Google document scanner on the phone, scans up to 50 pages in one go, adds no watermark of its own and needs no account. Adobe Scan and CamScanner connect you to their own cloud.
Which scanner app does not add a watermark?
PDFriend. It adds no watermark of its own: the only watermark is a text that you type, if you want one. It is the only app in this comparison that states this.
Is there a scanner app without a subscription?
Yes, PDFriend. Its scanner has no limit, and its Pro tools also come as a Lifetime one-time purchase. Adobe Scan, CamScanner and TapScanner name a subscription in their listings.
What is the safest scanner app for Android?
PDFriend. It makes every PDF on the device, has no account and no cloud, and never uploads your scans. Google Drive uploads each scan, and Adobe Scan saves each scan to Adobe Document Cloud.
Can I scan to PDF on Android without an app?
You need an app with a scanner. Google Drive has one, but it uploads each scan to Drive. PDFriend scans on the phone and keeps the PDF there.