About This Application
PDF Password Unlock And Open is an Android application designed to help users unlock, view, manage, and share password-protected PDF files. This application provides a comprehensive suite of PDF viewing and manipulation tools to enhance your document reading experience.
Key Features:
- Unlock password-protected PDF files
- High-quality PDF viewer with smooth rendering
- Advanced text search and highlighting capabilities
- Zoom, rotation, and fitting options for flexible viewing
- Night mode for comfortable reading in low-light environments
- Thumbnail view for quick page navigation
- Print PDF documents directly from the app
- Share PDFs via email, messaging, and other apps
- Support for Hindi and other Unicode languages
- Fullscreen mode for immersive reading
- Bookmark functionality for important pages
- PDF information display with file statistics
Disclaimer
1. Legal Use Responsibility
This application is intended for use ONLY with your own PDF files or those you have legitimate permission to access. Attempting to unlock, access, or distribute copyrighted or protected content without proper authorization is illegal in most jurisdictions. The user bears full legal responsibility for their use of this application and any consequences resulting from unauthorized access to protected materials.
2. No Liability
The developers and publishers of this application are NOT responsible for any damages, data loss, legal issues, financial loss, unauthorized access to your files, device malfunction, or any other consequences arising from the use or misuse of this application. Users assume all risks associated with downloading and using this software.
3. No Guarantee of Service
We do not guarantee that this application will successfully unlock all types of PDF files or function without errors. Some PDFs with strong encryption or proprietary protection may not be unlockable. Technical issues, crashes, or data corruption may occur. The application is provided "AS-IS" without any warranty of any kind.
4. Data Security
While we implement security best practices, we cannot guarantee absolute protection of your data. Exercise caution when processing sensitive documents. Do not rely solely on this application for critical document security. Always maintain backups of important files.
5. Intellectual Property Rights
Respect copyright laws and intellectual property rights of others. Unauthorized reproduction, distribution, or modification of copyrighted content is illegal and may result in civil and criminal penalties.
Terms & Conditions
1. Acceptance of Terms
By downloading, installing, and using this application, you agree to be bound by these terms and conditions. If you do not agree, please do not use this application and uninstall it immediately.
2. Permitted Use
You agree to use this application only for lawful purposes and in ways that do not infringe upon the rights of others or restrict their use and enjoyment. You specifically agree not to:
- Access, unlock, or modify PDFs without proper authorization
- Violate any applicable laws or regulations
- Infringe on copyrights, trademarks, or intellectual property rights
- Engage in hacking, cracking, or other malicious activities
- Distribute viruses, malware, or harmful code
- Reverse engineer or decompile the application code
- Use this app for commercial purposes without permission
3. Modifications and Updates
We reserve the right to modify, suspend, or discontinue this application at any time without prior notice. Features may be added, removed, or changed without warning. Updates may affect compatibility with older devices or operating systems.
4. User Responsibility
You are solely responsible for all activities and actions performed through this application. You accept full liability for any damages caused by your use or misuse of this application. This includes but is not limited to data loss, system failure, or legal consequences.
5. Termination of Service
We reserve the right to terminate, restrict, or remove access for any user who violates these terms, engages in illegal activity, or uses the application in ways we deem harmful or inappropriate.
6. Intellectual Property Rights
All code, designs, graphics, text, and other content in this application are the property of the developers or their respective licensors. You may not copy, reproduce, distribute, or create derivative works from this application without explicit written permission.
7. Third-Party Content
This application may interact with third-party services and content. We are not responsible for the accuracy, legality, or content of third-party materials.
Privacy Policy
1. Information We Collect
This application:
- Does NOT collect personal information (name, email, phone number, etc.)
- Does NOT upload your PDF files to external servers
- Does NOT track your browsing history or behavior
- Does NOT use tracking cookies or advertising by default
- Does NOT require account creation or registration
- Does NOT collect location data
2. Device Permissions
The application requests the following permissions:
- READ_EXTERNAL_STORAGE - To access and read PDF files from your device
- WRITE_EXTERNAL_STORAGE - To save unprotected PDFs (Android 10 and below)
- PRINT - To enable printing functionality
These permissions are used ONLY for local file operations on your device. No files are transmitted to external servers without your explicit action.
3. Third-Party Services
This application may utilize:
- Google Play Services - For app updates and basic services
- Share functionality - When you choose to share PDFs with other apps
- System services - For printing, file access, etc.
4. Data Security
All PDF processing occurs locally on your device. Cloud storage is not used unless you manually upload files to third-party services. We implement security best practices but cannot guarantee absolute security against all threats.
5. Changes to Privacy Policy
We may update this privacy policy at any time. Changes become effective upon app update or notification. Continued use indicates acceptance of updated terms.
6. Your Rights
You have the right to:
- Deny any permissions requested by the application
- Uninstall the application at any time
- Delete all application data and cache
- Use the application without providing personal information
Dependencies & Credits
This application is built upon the shoulders of giants. We are deeply grateful to the following open-source developers and organizations whose excellent libraries and frameworks made this application possible. Without their contributions to the open-source community, this project would not exist.
📚 Apache PDFBox
Developer: The Apache Software Foundation
License: Apache License 2.0
Purpose: PDF document processing, text extraction, encryption/decryption, and manipulation
GitHub: apache/pdfbox
📖 AndroidPdfViewer
Developer: Bartosz Schiller
License: Apache License 2.0
Purpose: High-performance PDF rendering and interactive viewer components
GitHub: barteksc/AndroidPdfViewer
🏗️ AndroidX Library
Developer: Google & Android Open Source Project
License: Apache License 2.0
Purpose: Modern Android APIs, backward compatibility, and core components
Website: developer.android.com
🎨 Material Design Components
Developer: Google Design Team
License: Apache License 2.0
Purpose: Modern UI/UX design, Material Design principles, and visual components
Website: material.io
🔄 RecyclerView
Developer: Google Android Team
License: Apache License 2.0
Purpose: Efficient list rendering, thumbnail grids, and adaptive layouts
Website: developer.android.com
🔐 FileProvider
Developer: Google & AndroidX
License: Apache License 2.0
Purpose: Secure file sharing between applications
Website: developer.android.com
Special Thanks To:
- Apache Software Foundation - For the robust and comprehensive PDFBox library that powers our PDF processing capabilities
- Bartosz Schiller - For the excellent AndroidPdfViewer library that provides smooth and efficient PDF rendering
- Google Android Team - For the Android platform, modern APIs, and Material Design guidelines
- Material Design Team - For creating beautiful and user-friendly design standards
- Open Source Community - For the collaborative spirit that drives innovation and progress in software development
- All Contributors - To the various open-source projects that directly or indirectly contributed to this application
Contact & Support
Report Issues
If you encounter any problems or bugs, please report them through:
- Google Play Store - Leave a review or use the support option
- GitHub Issues - For technical issues with detailed information
- Email Support - For direct assistance
Feature Requests & Suggestions
We welcome your feedback and suggestions for improving the application. Please share your ideas through the same channels above. Your input helps us make this application better for everyone.
How to Help
If you find this application useful, you can:
- Leave a positive review on Google Play Store
- Share the application with others who might find it helpful
- Report bugs to help us improve quality
- Contribute to the project (if source code is available)
Final Agreement
Your Legal Obligations:
- Create regular backups of your important documents
- Test the application with non-critical files before using with sensitive data
- Comply with all applicable laws and regulations regarding PDF usage
- Respect copyrights and intellectual property rights of others
- Use this application responsibly and ethically
- Do not attempt to circumvent licensing or legal restrictions
What We Promise:
- Continuous improvement based on user feedback
- Regular updates and security patches
- Respect for your privacy and data
- Transparent communication about changes
- Commitment to open-source principles
This agreement is valid in all jurisdictions where permitted by law. If any part of this agreement is found invalid, the remaining provisions remain in effect.
Additional Terms
Governing Law
These terms and conditions are governed by and construed in accordance with applicable laws, and you irrevocably submit to the exclusive jurisdiction of the courts located in the applicable territory.
Entire Agreement
This document constitutes the entire agreement between you and the application developers regarding the use of this application and supersedes any previous communications, understandings, or agreements.
Severability
If any provision of this agreement is found to be unenforceable or invalid, such provision shall be reformed to be enforceable to the maximum extent permitted by law, and the remaining provisions shall continue in full force and effect.
Waiver
The failure of the application developers to enforce any right or provision shall not constitute a waiver of such right or provision.