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<h1>ID Watermark</h1>
<p>Anti-counterfeit watermarking for your photos · On-device processing · Visible & invisible digital watermarks</p>
<p>Privacy Policy · Terms of Service · Support</p>
<div class="nav">
<a href="#support">Support</a>
<a href="#privacy">Privacy Policy</a>
<a href="#terms">Terms of Service</a>
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</header>
<!-- Support Section -->
<section id="support">
<h2>Support & Technical Assistance</h2>
<p>Thank you for using ID Watermark. This app lets you add <strong>visible watermarks</strong> and <strong>invisible digital watermarks</strong> to any of your photos, helping prevent misuse and supporting traceability of where an image came from or who it was shared with. All image processing happens locally on your device — no internet connection required.</p>
<p><span class="highlight">Contact Us</span><br>
If you encounter any issues, errors, or have suggestions for improvement, please reach out to the developer at:<br>
📧 Email: 710354687@qq.com</p>
<p><span class="highlight">Frequently Asked Questions</span></p>
<p><strong>How do I use the app?</strong><br>
1) Pick a photo; 2) Set your watermark text and a password (used to embed and later verify the invisible watermark); 3) Tap generate to get the watermarked image; 4) Save it to your photo library or share it. Batch mode lets you generate separately watermarked results for multiple recipients at once.</p>
<p><strong>Is my data safe? Will my photos be uploaded?</strong><br>
Yes, your data is safe. All image processing (digital watermark embedding, visible overlay, batch generation) runs entirely on your device. Your photos are <strong>never uploaded to any server</strong>, and no account registration is required.</p>
<p><strong>What is an "invisible digital watermark"?</strong><br>
Using algorithms such as DCT and SVD, the app embeds an invisible identifier (including the password you set) into the pixels of your image. It is not visible to the eye, but can be extracted again inside the app to verify whether the image has been tampered with and to trace its origin or who it was shared with. It is intended as an <strong>anti-counterfeit and traceability aid</strong>, not a substitute for legal certification.</p>
<p><strong>What if I forget the watermark password?</strong><br>
Extracting and verifying the invisible watermark depends on the password you set when embedding it. If you forget the password, you will not be able to extract or verify that watermark in the app. Please keep your password in a safe place. (Visible text watermarks are not affected by the password.)</p>
<p><strong>Is the app free / does it include in-app purchases?</strong><br>
Core features are free to use. If the app offers additional premium features, they are unlocked via In-App Purchases through the Apple App Store. Transactions are handled securely by Apple; we never collect your payment information.</p>
<p><strong>Which image formats are supported?</strong><br>
Common photo formats such as JPEG and PNG are supported. For best watermark embedding and extraction results, start from a clear, original photo.</p>
</section>
<hr>
<!-- Privacy Policy Section -->
<section id="privacy">
<h2>Privacy Policy</h2>
<p><strong>Applies to:</strong> ID Watermark for iOS and its related versions.<br>
<strong>Core Commitment:</strong> We highly respect your privacy. This app does <strong>not collect or upload any personally identifiable information (PII)</strong>. Photos you choose to import are processed exclusively on your device.</p>
<p><strong>1. What Data We Collect</strong><br>
<strong>Short Answer:</strong> We do not collect your personally identifiable information.<br>
The app's core functionality (watermark embedding, verification, batch generation) runs entirely offline and requires no internet connection. Therefore:</p>
<ul>
<li>❌ We do not collect your name, email address, or phone number.</li>
<li>❌ We do not collect your precise location data.</li>
<li>❌ We do not collect device identifiers for ad tracking.</li>
<li>❌ We do not use any third-party advertising or analytics SDKs.</li>
</ul>
<p>Photos you <strong>actively choose to import</strong> are used only for local watermark processing and never leave your device. We do not read any other photos in your library.</p>
<p><strong>2. How Data is Stored</strong><br>
All data generated within the app is stored locally on your device:</p>
<ul>
<li>📱 Stored within your device using Apple's native sandboxing mechanism.</li>
<li>🔐 Inaccessible to any other apps or network services.</li>
<li>🗑️ When you uninstall the app, all related records are automatically and permanently deleted by the system.</li>
</ul>
<p><strong>3. Does Data Get Transmitted to Servers?</strong><br>
Our core service has no backend servers; all watermarking logic runs locally on your device:</p>
<ul>
<li>✅ No account registration or forced login required.</li>
<li>✅ Photos and processing results are never uploaded to any cloud service.</li>
</ul>
<p>Note: If you enable iCloud backup on your device, your local app data may be backed up to your iCloud account. This is governed by Apple's official Privacy Policy.</p>
<p><strong>4. Device Permissions</strong><br>
We follow a "minimal permissions" principle:</p>
<ul>
<li>📷 <strong>Photo read:</strong> The app reads only the image you <strong>explicitly select</strong> via the system photo picker (PHPicker). It does not request broad photo-library read access and does not access your other photos.</li>
<li>💾 <strong>Photo write:</strong> When you save a result to your photo library, the system will request "Photos" write permission, which you may grant or deny at your discretion.</li>
<li>🚫 No camera, microphone, location services, or local network permission is used.</li>
<li>🚫 No third-party advertising or social-sharing SDKs are integrated.</li>
</ul>
<p><strong>5. Third-Party Services (In-App Purchases)</strong><br>
To provide a clean, ad-free experience, any In-App Purchases (IAP) are processed through the Apple App Store. We do not integrate any third-party analytics, advertising, or social media SDKs.</p>
<p><strong>6. Children's Privacy</strong><br>
This app is intended for general photo watermarking use. We do not knowingly collect personal data from children under 13. In fact, we do not collect personally identifiable information from any users.</p>
<p><strong>7. Updates to This Privacy Policy</strong><br>
We may update this privacy policy from time to time to comply with the latest Apple App Store review guidelines and applicable laws:</p>
<ul>
<li>📅 Updated policies will be published on this page and the App Store listing.</li>
<li>✅ Your continued use of the app constitutes your acceptance of the updated policy.</li>
</ul>
<p><strong>8. GDPR Compliance (EU Users)</strong><br>
If you are located in the European Union, under the General Data Protection Regulation (GDPR), you enjoy the following rights:</p>
<ul>
<li>📋 Right of Access: Not applicable, as we do not collect personal data.</li>
<li>🗑️ Right to Erasure: Uninstalling the app deletes all local data.</li>
<li>📤 Right to Data Portability: Not applicable (no data is centrally stored on servers).</li>
<li>❌ Right to Object: Not applicable (no data processing occurs).</li>
</ul>
<p><strong>9. CCPA Compliance (California Users)</strong><br>
Under the California Consumer Privacy Act (CCPA):</p>
<ul>
<li>🚫 We have not sold any consumers' personal information in the past 12 months.</li>
<li>🚫 We do not collect any personal information.</li>
</ul>
<p><strong>Contact Us</strong><br>
If you have any questions or concerns about this privacy policy, the app's features, or purchase-related matters, please contact the developer at:<br>
📧 Developer Email: 710354687@qq.com</p>
<p><em>Last Updated: August 2026 | Version: 1.0</em></p>
</section>
<hr>
<!-- Terms of Service Section -->
<section id="terms">
<h2>Terms of Service</h2>
<p><strong>Last Updated: August 2026</strong></p>
<p><strong>1. Acceptance of Terms</strong><br>
By downloading, installing, or using ID Watermark (hereinafter referred to as "the App"), you agree to be bound by these Terms of Service.</p>
<p><strong>2. Application License</strong><br>
We grant you a limited, non-exclusive, non-transferable license to use the App on iOS devices that you own or control, solely for personal, non-commercial purposes.</p>
<p><strong>3. User Accounts</strong></p>
<ul>
<li>Creating an account is not required to use the App.</li>
<li>Your selected photos, watermark settings, and processing results are stored locally on your device.</li>
<li>You can delete the App at any time to clear all associated data.</li>
</ul>
<p><strong>4. Application Features</strong></p>
<p><em>Standard Features:</em></p>
<ul>
<li>Add visible and invisible digital watermarks to a single photo.</li>
<li>Batch mode: generate separately watermarked results for multiple recipients at once.</li>
<li>Extract and verify the invisible digital watermark from an image.</li>
<li>Fully offline operation; no internet connection required.</li>
</ul>
<p><em>Premium Features (unlocked via one-time In-App Purchase, if offered):</em></p>
<ul>
<li>Additional watermark styles, higher batch limits, or other enhancements (as described in the App).</li>
<li>Ad-free, clean local usage experience.</li>
</ul>
<p><strong>5. Purchases & Payments</strong><br>
<strong>5.1 Purchase Model</strong><br>
Where the App offers In-App Purchases, it uses a one-time purchase model with no subscription cycles, no auto-renewal, and no hidden fees. Upon completion of purchase, you permanently unlock the relevant premium features on the current device.<br>
<strong>5.2 Transaction Processing</strong><br>
All in-app purchases are processed securely through the Apple App Store. We do not collect or store any of your personal identity or payment information.</p>
<p><strong>6. Intellectual Property</strong><br>
All intellectual property rights in and to the App and its content (including but not limited to the watermark algorithms, interface design, textual explanations, icons, and layout) are owned by us. You may not copy, modify, distribute, or create derivative works without our prior written consent.</p>
<p><strong>7. Disclaimer</strong></p>
<ul>
<li>The digital and visible watermarks provided by the App are intended solely as an <strong>anti-counterfeit and traceability aid</strong> and do not constitute any official certification or qualification guarantee.</li>
<li>The effectiveness of the invisible digital watermark can be affected by image content, compression, screenshots, cropping, and filters. We <strong>do not guarantee 100% extraction or tamper detection in all scenarios</strong>; verification results are for reference only.</li>
<li>You are responsible for the <strong>legality and authorization</strong> of any photos you process with the App. Ensure you have the right to watermark and share the image.</li>
<li>Forgetting the watermark password will prevent extraction of the corresponding invisible watermark within the App.</li>
<li>The App is provided "as is" without any express or implied warranties.</li>
</ul>
<p><strong>8. Limitation of Liability</strong><br>
To the fullest extent permitted by law, we shall not be liable for any indirect, incidental, special, or consequential damages arising from your use of the App (including but not limited to misuse of photos, failed verification, data misoperation, or loss of time).</p>
<p><strong>9. Third-Party Links</strong><br>
The App may contain links to third-party websites or services. We are not responsible for the content, privacy policies, or practices of these third-party websites or services.</p>
<p><strong>10. Privacy</strong><br>
Your privacy is important to us. The App is designed with an offline-first approach and does not collect or upload any personally identifiable information. Please refer to our Privacy Policy for details on how we handle your information.</p>
<p><strong>11. Changes to Terms</strong><br>
We reserve the right to modify these Terms of Service at any time. In the event of material changes, we will notify you via in-app announcements. Your continued use of the App constitutes acceptance of the revised Terms.</p>
<p><strong>12. Termination</strong><br>
We reserve the right to terminate your access to the App under the following circumstances:</p>
<ul>
<li>You violate these Terms of Service;</li>
<li>We receive requests from Apple or regulatory authorities;</li>
<li>Legal requirements dictate.</li>
</ul>
<p>Thank you for using ID Watermark!</p>
</section>
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© 2026 ID Watermark · Official app page covering Support, Privacy Policy & Terms of Service
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