Privacy Policy
Summary
- Image to PDF Converter Pro is an offline-first document scanner and PDF toolkit.
- Your documents, scans, images and search index stay on your device. We do not upload them to any server.
- We do not require an account, and we do not sell or share your personal data.
- The app contains no advertising and no analytics or tracking SDKs.
1. Introduction
This Privacy Policy explains how NexusPlay Studio ("Developer", "we", "us") handles information in the Android application Image to PDF Converter Pro (the "App"). By using the App you agree to this policy. If you do not agree, please do not use the App.
2. Information We Collect
We do not collect, transmit or store your personal information on our servers. The App has no backend and no user accounts. The data described below is created and kept only on your device.
2.1 Content you create or import
- Photos captured with the camera, images you select with the Android Photo Picker, and PDF files you create, import, edit or export.
- Document metadata such as names, folders, favorites, categories and timestamps, stored in a local SQLite database.
- A local full-text search index built from text recognized in your documents (see 2.3).
This content is stored in the App's private storage and is never sent to us.
2.2 Camera
The App asks for the Camera permission only to let you scan documents. Images are processed on your device. Camera access is optional; without it you can still import images and use the PDF tools.
2.3 Text recognition (OCR)
Text recognition runs on-device using Google ML Kit's bundled text recognition model. The recognized text is used only to build your local search index. It supports Latin-script languages.
2.4 Document scanner
The automatic scanner is provided by Google Play services (ML Kit Document Scanner). It runs on your device and may download a scanner module from Google the first time it is used. That download is handled by Google under the Google Privacy Policy. You can choose the manual scanner in Settings, which works fully offline.
2.5 Biometrics and device credentials (Vault)
The optional Vault feature encrypts files with AES-256-GCM. The encryption key is stored in Android Keystore-backed secure storage. To unlock the Vault, the App uses the Android biometric prompt or your device screen lock (USE_BIOMETRIC permission). The App never receives, sees or stores your fingerprint, face data or PIN; authentication is performed entirely by the Android system and only a success or failure result is returned to the App.
2.6 App settings
Preferences such as theme, language, sort order and scanner choice are stored locally on your device.
3. Permissions Used
| Permission / access | Purpose |
|---|---|
CAMERA | Scan documents and take photos to convert into PDF. |
USE_BIOMETRIC | Unlock the encrypted Vault with biometrics or the device credential. |
| Photo Picker / file picker | You choose specific images or PDFs. The App does not get broad access to your photos or storage. |
The App does not request location, contacts, microphone, SMS, phone or broad storage permissions, and does not request internet-based advertising identifiers.
4. How We Use Information
Information on your device is used solely to provide the App's features: scanning, creating, editing, organizing, searching, protecting and sharing your documents. We do not use it for advertising, profiling or analytics.
5. Sharing and Disclosure
We do not sell, rent, trade or share your personal data with third parties. Files leave your device only when you choose to share or export them, for example through the Android share sheet or a "save to device" action. Once you share a file with another app or person, their privacy practices apply.
We may disclose information only if required by law, which is unlikely because we do not hold your data.
6. Third-Party Components
The App uses open-source libraries and Google components to work on-device, including:
- Google ML Kit (Document Scanner and Text Recognition) / Google Play services
- PdfBox-Android and the Flutter
pdf/pdfrxlibraries for PDF processing - Android Keystore and secure storage for encryption keys
- Flutter framework and Android platform libraries
These components process data locally. The App does not include advertising networks, analytics, crash-reporting or social-media SDKs.
7. Data Storage, Backup and Security
- All data is kept in private app storage on your device, protected by Android's app sandbox.
- Vault files are encrypted with AES-256-GCM. PDFs can optionally be protected with AES-256 password encryption.
- App data is excluded from Android cloud backup and device-to-device transfer.
- There is no recovery for Vault files. Uninstalling the App, clearing app data or losing your device keys makes Vault files permanently unreadable.
No method of electronic storage is perfectly secure, but we take reasonable measures to protect your data. You are responsible for securing your device with a screen lock.
8. Data Retention and Deletion
Because we do not collect your data, we have nothing to delete on our side. You control all data on your device:
- Delete documents inside the App. Deleted items stay in the Trash for 30 days and are then removed permanently.
- Remove all App data by clearing storage in Android Settings → Apps → Image to PDF Converter Pro, or by uninstalling the App.
9. Paid Features and Payments
If the App offers paid features or subscriptions, purchases are processed entirely by Google Play. We never see or store your payment card or billing details. You can manage or cancel subscriptions in Google Play under Payments & subscriptions. Your existing documents remain accessible on your device if a subscription ends.
10. Children's Privacy
The App is not directed to children under 13 and we do not knowingly collect personal information from anyone, including children. Since no data is collected or transmitted, the App does not expose children's data.
11. Your Rights
Depending on where you live (for example under GDPR, UK GDPR or CCPA/CPRA), you may have rights to access, correct, delete or port your personal data, and to object to or restrict its processing. As we do not collect or hold your personal data, these rights are fulfilled by the controls available to you directly on your device. If you have a question or request, contact us using the details below.
12. International Users
The App processes data locally on your device and does not transfer it across borders.
13. Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with a new "Last updated" date. Continued use of the App after changes means you accept the updated policy.
14. Contact Us
Developer: NexusPlay Studio
Support email: nexusplayengine@protonmail.com