Sam Apps · SamScanner

Privacy Policy

How we protect your privacy, documents, and personal data when you use SamScanner to scan, edit, and digitally sign documents.

Effective: October 8, 2026 Applies to Android

1. Introduction

This Privacy Policy explains how Sam Apps (“we”, “us”, or “our”) handles information when you use the SamScanner mobile application (the “App”).

By using SamScanner, you agree to this Privacy Policy. If you do not agree, please do not use the App.

Plain language: SamScanner is designed with an offline-first, privacy-focused architecture. Your scanned documents, photos, extracted OCR text, drawn signatures, and digital certificate keys are processed locally on your device and are never uploaded to or stored on our servers. We do not sell your personal information or document contents.

2. 100% On-device processing

All core document operations in SamScanner take place locally on your mobile device:

  • Document scanning & edge detection: Processed using Google ML Kit on-device APIs.
  • Optical Character Recognition (OCR): Text extraction is performed locally using the Tesseract 4 engine.
  • PDF tools: Page merging, splitting, watermarking, and reordering are performed via local PDFBox rendering engines.
  • Digital signing: PAdES eIDAS signatures (.p12 / .pfx files and Android KeyChain certificates) are processed securely inside your device's memory.

3. Information we process

3.1 Documents, photos & extracted text

When you capture a document using the camera or import an image/PDF file from your device storage, these files are saved only in your device's local application storage or external storage as selected by you. We do not receive or collect copies of your scanned documents or extracted text.

3.2 Signatures & cryptographic certificates

If you draw a signature or load a digital certificate file (.p12 / .pfx), the signature image and private keys remain exclusively on your device. Private key passwords entered into the App are used temporarily in RAM to sign the requested PDF and are never transmitted over the internet.

3.3 Technical diagnostics & usage statistics

To ensure app stability and fix bugs, we may collect non-identifiable technical diagnostic information, such as:

  • Device model, manufacturer, operating system version, and app release version
  • Crash reports and stack traces (for example, via Firebase Crashlytics)
  • Anonymous performance metrics and aggregated feature error rates

3.4 In-App purchases & subscriptions

If you make a purchase or subscribe to premium features, payments are processed directly by Google Play Services. We receive non-sensitive purchase status confirmations (e.g., subscription active/expired) to unlock paid functionality. We do not collect or store your payment card numbers or banking information.

4. Device permissions

Permission Why we ask
Camera To capture photos of physical documents, receipts, and IDs for scanning
Storage / Media To let you import existing PDF files or images and save generated PDFs to your device storage
Internet / Network access To verify Google Play licensing, send anonymous crash reports, and access system certificate providers

You can grant or revoke these permissions at any time in your Android system settings. Disabling a required permission (such as Camera) will disable the corresponding feature in the App.

5. Digital signatures & certificates

SamScanner supports PAdES (PDF Advanced Electronic Signatures) compliant with eIDAS regulations. When using digital certificate signing:

  • System certificates are accessed securely via the standard Android KeyChain API.
  • Personal .p12 or .pfx files are read locally from your chosen storage location.
  • Cryptographic hash calculations and PDF envelope signing are performed on-device using Bouncy Castle.
  • Your private key passwords are never logged, saved to disk, or sent off-device.

6. Sharing & service providers

We do not sell, rent, or trade your personal information or document data. We may interact with trusted infrastructure providers solely to operate app services:

  • Google Play Services — for app distribution, updates, and in-app purchase verification
  • Google Firebase Crashlytics — for anonymous crash reporting and stability monitoring

Third-party providers operate under their own privacy policies. We encourage you to review Google's privacy policy.

7. Data retention & deletion

Since all your scanned documents, drawn signatures, and created PDFs reside locally on your device:

  • You have complete control over deleting your files at any time through the App interface or your device's File Manager.
  • Uninstalling the App will remove all local application storage and saved signatures from your device.
  • To delete anonymous crash logs, you can contact us with your device installation ID.

8. Security

We implement industry-standard security practices to protect your data. All document processing is kept within isolated app sandbox memory space, and system digital certificates rely on Android hardware-backed KeyStore hardware security modules (HSM/TEE) where supported by your device.

9. Children’s privacy

SamScanner is not directed to children under the age of 13. We do not knowingly collect or solicit personal information from children. If you become aware that a child has provided us with personal information, please contact us so we can take immediate corrective steps.

10. Your rights & choices

Depending on your jurisdiction, you have the right to:

  • Access or request information about data handling practices
  • Request deletion of any personal or diagnostic data
  • Manage device permissions via your Android settings

To exercise any privacy rights, contact us via email at admin@sam-apps.com.

11. Changes to this policy

We may update this Privacy Policy from time to time. The updated version will be indicated by the “Effective” date above. We encourage you to review this Privacy Policy periodically to stay informed.

12. Contact

If you have any questions or concerns about this Privacy Policy:

Sam Apps
Email: admin@sam-apps.com
Website: https://sam-apps.com/
Policy URL: https://sam-apps.web.app/privacy/samscanner