Sign PDF documents

Privacy Policy – Sign PDF documents easy & fast

Last updated: 12/22/25

This Privacy Policy explains how Sign PDF documents easy & fast (“the App”) handles information when you use it.

1. Data Controller (Responsible Entity)

The data controller for the processing described in this Privacy Policy is:

  • Controller (Responsible Entity): MULTIAPPS S.L
  • Country: SPAIN
  • Contact email: multiapps.sl@gmail.com
  • Website: multiapps.es

This Controller is responsible for compliance with applicable data protection laws and for handling privacy-related requests.

2. Developer / Data Processor

The App is developed and technically maintained by:

  • Developer / Processor: DIFERENCIART MARKETING SL

The Developer acts as a data processor on behalf of the Controller and processes any applicable diagnostic data only under the Controller’s instructions and for the purposes described in this Privacy Policy.

3. Core principle: your documents stay on your device

Your PDF documents and the content you add (signatures, text, drawings, images) are processed locally on your device.

  • We do not upload your documents to our servers.
  • We do not share your documents with third parties.
  • The App’s editing, signing and scanning features are designed to work offline and your documents are not sent to any server as part of these features.

If you choose to export/share a document (e.g., by email, messaging apps, cloud apps you select), that action is performed through third-party apps/services you choose and is governed by their own policies.

4. Information we collect

4.1 Document content

  • We do not collect, store, or process your PDF document content on our servers.

4.2 Crash reports and diagnostics (Firebase Crashlytics)

To improve stability and fix bugs, we use Firebase Crashlytics. Crashlytics may collect:

  • crash reports and stack traces
  • device and app information (e.g., device model, OS version, app version)
  • timestamps and diagnostic/performance signals

We use this information only to identify issues, fix bugs, and improve the App. We do not use Crashlytics to personally identify you.

4.3 Advertising (Google AdMob)

The App may display ads using Google AdMob. Ad networks may collect:

  • advertising identifiers (such as the Android Advertising ID, depending on your settings/consent)
  • IP address (often used for fraud prevention and approximate location)
  • ad interaction data (impressions, clicks)
  • device/app information for ad delivery and measurement

Ad personalization depends on your consent choices and device settings where applicable.

4.4 Scanning feature (Google Play services)

The App uses Google Play services to provide scanning capabilities. Scanning is initiated by you.

  • The App does not upload your document content to our servers for scanning.
  • Processing happens on-device and/or within Google Play services components required for the scanner feature.

4.5 Purchases (if applicable)

If you purchase subscriptions or in-app items, payments are processed by Google Play. We do not receive your payment card details. We may receive purchase/subscription status information (e.g., active/expired) to enable premium features.

5. How we use information

We use the collected information to:

  • provide and maintain the App
  • diagnose crashes and improve reliability (Crashlytics)
  • display and measure ads (AdMob)
  • prevent fraud and abuse (AdMob/Google services may perform this)

6. Legal bases (where applicable)

Depending on your location, we may process information based on:

  • Legitimate interests: app stability, security, fraud prevention, and improvement
  • Consent: personalized ads and certain advertising technologies (where required)
  • Contract: providing features you request (e.g., scanning)

7. Sharing of information

We do not share your PDF document content.

We may share limited technical/advertising information with:

  • Google AdMob (advertising and measurement)
  • Firebase Crashlytics (crash reporting and diagnostics)
  • Google Play services (scanner feature components)
  • Google Play (billing/subscription status)

These providers process data under their own policies.

8. Data retention

  • Documents: remain on your device unless you export/share them.
  • Crash reports/diagnostics: retained as needed to analyze issues and improve the App, according to Firebase settings.
  • Advertising data: retained according to Google/AdMob policies and settings.

9. Your choices and controls

  • You can limit ad personalization in your device settings (where available).
  • You can uninstall the App to remove locally stored app data from your device.
  • If the App shows a consent prompt (e.g., in the EEA/UK), you can update your choices there.

10. International transfers

Our service providers (Google) may process data on servers located in different countries. Where required, appropriate safeguards are used for cross-border transfers.

11. Children’s privacy

The App is not intended for children under [13/16]. We do not knowingly collect personal data from children.

12. Changes to this policy

We may update this policy from time to time. We will post the updated version and update the “Last updated” date.

13. Contact

If you have questions about this policy or want to exercise your privacy rights, contact: sign@diferenciart.com