ZenPDF Privacy Policy 

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        <h1>ZenPDF - Privacy Policy</h1>

        <p>Your privacy and document security are our highest priority.</p>

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            <span class="badge">Effective Date: August 20, 2026</span>

            <p>Welcome to <strong>ZenPDF</strong> ("we", "our", or "us"). This Privacy Policy explains how our mobile application handles your information when you use our document reading, scanning, and editing services.</p>

            <h2>1. Offline-First & Document Privacy</h2>

            <p><strong>ZenPDF is designed with a strict privacy-first architecture:</strong></p>

            <ul>

                <li><strong>Local File Processing:</strong> All PDF viewing, rendering, merging, splitting, compressing, and page manipulation take place 100% locally on your device.</li>

                <li><strong>No Document Uploads:</strong> We do not store, view, transmit, or copy your personal documents, PDF files, or scanned images to any external servers. Your files never leave your device.</li>

            </ul>

            <h2>2. Information We Collect</h2>

            <p>We do not collect unnecessary personal data. The only information processed includes:</p>

            <ul>

                <li><strong>Account Information (Optional):</strong> If you choose to sign in using Firebase Authentication (e.g., Email or Google Sign-In), we store your basic user profile (such as email address and user ID) to manage your account status and sync your app preferences.</li>

                <li><strong>Purchase Information:</strong> If you purchase a premium plan or remove ads, the transaction is processed directly and securely by <strong>Google Play In-App Billing</strong>. We only receive a transaction confirmation token to unlock your premium features. We never collect or store your payment card details.</li>

            </ul>

            <h2>3. Device Permissions & How They Are Used</h2>

            <p>ZenPDF only requests permissions that are strictly necessary to deliver its features:</p>

            <ul>

                <li><strong>Camera Permission:</strong> Required solely when you use the built-in Document Scanner to capture physical paper documents and run OCR (Optical Character Recognition). Camera data is processed on-device in real time and is never broadcasted.</li>

                <li><strong>Storage / Media Access:</strong> Needed to open, import, edit, and save PDF files and converted images to your device storage.</li>

                <li><strong>Biometric / Fingerprint:</strong> Used only if you choose to lock specific PDFs or app access with your device's fingerprint or face unlock. Biometric validation is handled directly by your device OS.</li>

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            <h2>4. Third-Party Services</h2>

            <p>We only integrate trusted industry-standard service providers that adhere to rigorous privacy standards:</p>

            <ul>

                <li><strong>Google Play Services & Billing:</strong> For secure in-app purchases and subscription handling.</li>

                <li><strong>Firebase Authentication & Cloud Firestore:</strong> For optional user sign-in and account profile management.</li>

                <li><strong>Google ML Kit:</strong> For on-device document detection and OCR text recognition.</li>

            </ul>

            <h2>5. Children's Privacy (COPPA Compliance)</h2>

            <p>ZenPDF does not knowingly collect personal identifiable information from children under the age of 13. Our application is a general-purpose document utility intended for students, professionals, and the general public.</p>

            <h2>6. Security of Your Data</h2>

            <p>We prioritize the security of your data. All communication between the app and authentication servers is encrypted using industry-standard TLS/HTTPS protocols.</p>

            <h2>7. Account and Data Deletion</h2>

            <p>Users have the right to request deletion of their account and associated data at any time:</p>

            <ul>

                <li><strong>How to Request Deletion:</strong> You can delete your account directly from within the ZenPDF app settings, or by sending an email to <a href="mailto:saidulislamoli009@gmail.com">saidulislamoli009@gmail.com</a> with the subject <em>"Delete My ZenPDF Account"</em> from your registered email address.</li>

                <li><strong>Data Deleted:</strong> Upon request, your account authentication records, user ID, and cloud preferences stored in Firebase will be permanently deleted within 30 days.</li>

                <li><strong>Local Data:</strong> All your PDF files and scanned documents remain solely on your device and are removed immediately when you uninstall the app or delete them locally.</li>

            </ul>

            <h2>8. Changes to This Privacy Policy</h2>

            <p>We may update our Privacy Policy from time to time. Any changes will be posted on this page with an updated effective date.</p>

            <h2>9. Contact Us</h2>

            <p>If you have any questions, suggestions, or concerns regarding this Privacy Policy or your data, please contact us at:</p>

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                <strong>Developer / Support Email:</strong> <a href="mailto:saidulislamoli009@gmail.com">saidulislamoli009@gmail.com</a><br>

                <strong>Application:</strong> ZenPDF - PDF Reader, Scanner & Tools

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            &copy; 2026 ZenPDF. All rights reserved.

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