PDF Zipper – PDF Tools & Converter
Developer: Vinnorokom IT
Operated by: Md Arifur Rahman
Contact: [email protected]
Android package: com.vinnorokom.pdfy
iOS bundle ID: com.vinnorokom.pdfzipper
1. Introduction
Welcome to PDF Zipper — PDF Master Suite ("PDF Zipper", "the App", "we", "our"). This Privacy Policy explains how PDF Zipper handles information when you use our application on Android and iOS devices. The same practices apply on both platforms; where they differ, this policy says so.
The short version: PDF Zipper does not collect, transmit, store on any server, or share any personal data or files. All processing happens entirely on your device. The only data that leaves your device is limited technical information sent by Google's ML Kit text-recognition library, described in Section 5.
2. Information We Do NOT Collect
PDF Zipper does not collect, process, transmit, or store any of the following:
- Personal identification information (name, email, phone number)
- Location data
- Device identifiers (IMEI, advertising ID, etc.)
- Usage analytics or crash reports
- File contents, PDF documents, images, or text you process in the app
- Browsing history or behavioural data
- Contacts or calendar data
- Financial or payment information
We do not require user registration or an account of any kind.
3. How the App Works — On-Device Processing
Every feature in PDF Zipper operates entirely on your device:
| Feature | Processing Location |
|---|---|
| Merge PDF | On-device (Syncfusion PDF library) |
| Split PDF | On-device (Syncfusion PDF library) |
| Compress PDF | On-device (Syncfusion PDF library) |
| Image to PDF | On-device (pdf/image libraries) |
| Camera to PDF | On-device (camera plugin + image processing) |
| PDF to Image | On-device (pdfx renderer) |
| Word ↔ PDF | On-device (Syncfusion + Archive library) |
| Image to Text (OCR) | On-device (Google ML Kit — see Section 5) |
| File Manager | Local device storage only |
Your documents never leave your device. No files are uploaded to any server, cloud service, or third party at any time.
4. Permissions Used
PDF Zipper requests the following device permissions. Each is used solely for the stated purpose:
4.1 Camera (Android: android.permission.CAMERA · iOS: Camera access)
Purpose: Used exclusively in the "Camera to PDF" feature to capture document photos through the in-app camera scanner. Scope: The camera is only active while you are on the Camera to PDF screen. No images are transmitted or stored outside the app's local output directory. On iOS, the system asks for your permission the first time you open the scanner, and you can change it at any time in Settings → PDF Zipper.
4.2 Choosing files and photos
Purpose: Allows you to select PDF files and images from your device for processing within the app. Scope: The app reads only the specific files you explicitly select via the file picker or photo picker. It does not scan, index, or read any files without your direct action.
- Android: READ_EXTERNAL_STORAGE / READ_MEDIA_IMAGES, depending on your Android version.
- iOS: you pick files and photos through the system Files and Photos pickers, which give the app only the items you choose. If iOS asks for Photos access, it is used only to let you pick the images you select.
4.3 Saving files
Purpose: Allows the app to save output files (merged PDFs, converted images, Word documents, etc.). Scope: Only output files generated by your actions are written to storage (see Section 6).
- Android: WRITE_EXTERNAL_STORAGE is requested on Android 9 (API 28) and below only; on Android 10 and above, files are saved using the standard Downloads directory API without requiring this permission.
- iOS: no permission is needed; files are saved in the app's own Documents folder.
4.4 Internet Access
PDF Zipper does not require internet access for its core functionality, and all PDF and OCR processing runs offline.
- Android: an internet connection may be used on first launch to download the Google ML Kit OCR model. After the model is downloaded, the app works fully offline.
- iOS: the OCR model is built into the app, so nothing needs to be downloaded.
When a connection is available, Google ML Kit may also send limited technical information to Google, as described in Section 5.
5. Third-Party Libraries and SDKs
PDF Zipper uses the following third-party libraries on both Android and iOS. Apart from Google ML Kit, described below the table, none of these libraries collect user data or transmit information to external servers in the context of PDF Zipper's use:
| Library | Purpose | Data Collected |
|---|---|---|
| Google ML Kit Text Recognition | On-device OCR for Image to Text feature | Your images and text: none — processed locally on your device. Limited technical data: see below |
| Syncfusion Flutter PDF | PDF creation, manipulation, and text extraction | None |
| pdfx | PDF page rendering for previews | None |
| camera (Flutter plugin) | Camera access for document scanning | None |
| file_picker | File selection dialog | None |
| share_plus | Sharing output files via system share sheet | None |
| path_provider | Finding standard device directories | None |
| open_filex | Opening files in external apps | None |
PDF Zipper uses Google ML Kit's Text Recognition API exclusively in on-device mode: the images you scan and the text recognised from them are processed on your device and are never sent to Google or to us.
Like all ML Kit SDKs, it does send Google limited technical information for diagnostics and usage analytics: device information (such as manufacturer, model and operating-system version), app information (package name or bundle ID, and app version), a per-installation identifier that is not intended to identify you or your device, and performance metrics. This information is sent over HTTPS, and Google states that it is not shared with third parties. We do not receive it. For details, see Google's ML Kit data disclosures for Android and iOS, and Google's Privacy Policy.
6. File Storage
Output files created by PDF Zipper (merged PDFs, converted documents, extracted images, etc.) are saved to:
- Android: Your device's public Downloads folder (
/storage/emulated/0/Download/), or the app's private Documents directory as a fallback. - iOS: The app's private Documents folder, accessible via the Files app.
These files belong entirely to you. PDF Zipper does not retain copies, does not access these files after creation, and does not transmit them anywhere. You may delete them at any time using the in-app File Manager or your device's file management tools.
The app maintains a local history index (a JSON file in the app's private Documents directory) that stores file names, paths, sizes, and creation dates of output files. This data is stored exclusively on your device and is never transmitted externally. You can clear this history at any time from Settings → Storage Management → Clear All.
7. Children's Privacy
PDF Zipper is not directed at children under the age of 13 (or the equivalent minimum age in your jurisdiction). We do not knowingly collect any information from children. As PDF Zipper does not collect any personal data from any user, there are no specific risks to children's privacy from the use of this app.
8. Data Security
Because PDF Zipper does not collect or transmit any personal data or file contents, there is no risk of your data being intercepted, breached, or misused through our systems. All data remains on your device, subject to your device's own security measures (screen lock, encryption, etc.).
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Any changes will be reflected by updating the "Last Updated" date at the top of this page. We encourage you to review this policy periodically. Continued use of the app after any changes constitutes your acceptance of the updated policy. For significant changes, we will endeavour to provide notice through an app update.
10. Your Rights
Depending on your jurisdiction, you may have rights regarding personal data. Since PDF Zipper collects no personal data, there is no personal data to access, correct, delete, or transfer on our end. All data generated by your use of the app resides on your device and is entirely under your control.
11. Contact Us
If you have questions, concerns, or requests regarding this Privacy Policy, please contact us:
- Email: [email protected]
- Developer: Vinnorokom IT
- App: PDF Zipper — PDF Master Suite (Android: com.vinnorokom.pdfy · iOS: com.vinnorokom.pdfzipper)
We aim to respond to all enquiries within 5 business days.
12. Governing Law
This Privacy Policy shall be governed by and construed in accordance with applicable laws. Any disputes arising under this policy shall be subject to the exclusive jurisdiction of the courts in the developer's jurisdiction.
This privacy policy was last updated on September 28, 2026.