This Privacy Policy describes how PDF Reader & Viewer (“we”, “our”, or “us”) collects, uses, and protects your information when you use our mobile application (“Service”).
By using our app, you agree to the terms and practices described in this Privacy Policy. We are committed to respecting your privacy and ensuring your personal information is handled securely and responsibly.
We may collect and process several types of data to improve our services and ensure the best user experience:
a. Personal Information
We do not require users to create an account or submit personal details to use the main features of the app. However, if you contact us for support or feedback, we may collect your email address or related information voluntarily provided by you.
b. Usage Data
When you use our Service, certain information may be automatically collected, such as:
Device information (model, OS version, app version)
Log data (crash reports, performance metrics)
Anonymous analytics about app usage and feature interactions
This data is used solely to enhance the performance, stability, and usability of the app.
c. Files and Documents
PDF Reader & Viewer requires permission to access your local storage so that you can view, open, or edit documents on your device.
Your files are processed locally and never uploaded to any external server without your explicit consent.
We use collected data to:
Operate and maintain core app functionality
Improve performance and develop new features
Analyze user behavior in an aggregated and anonymous way
Display non-intrusive advertisements where applicable
Diagnose technical problems and enhance app stability
We do not sell, trade, or rent your data to any third party. All analytics data is used internally or via trusted third-party platforms to improve service quality.
To provide essential features, the app may request the following permissions:
Storage access – to read and manage PDF and document files
Camera (optional) – for scanning documents if you use the scan-to-PDF function
Internet access – to load ads, check updates, or enable online conversions
You can manage or revoke these permissions at any time in your device settings.
Our app integrates trusted third-party tools that may collect certain information in accordance with their own privacy policies.
These include (but are not limited to):
AdMob
Google Analytics for Firebase
Firebase Crashlytics
These services help us display ads, measure performance, and detect crashes. They may use device identifiers or cookies to provide better insights and prevent fraud.
We implement reasonable technical and administrative safeguards to protect your data against unauthorized access, alteration, or misuse.
While we strive to use commercially acceptable means to secure your data, please understand that no system is completely foolproof or immune to risks.
PDF Reader & Viewer is not intended for children under the age of 13.
We do not knowingly collect personal information from children. If you believe a child has provided personal data to us, please contact us immediately so we can delete it.
We retain data only for as long as necessary to fulfill the purposes outlined in this policy.
If you contact us via email, we may keep your message for a reasonable period to improve support services.
You may request data deletion by contacting us directly at tongchaowei55@gmail.com.
We may update this Privacy Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons.
Any updates will be posted on this page, and the new version will take effect immediately upon publication.
If you have questions, feedback, or concerns regarding this Privacy Policy or your data, please reach out to us:
📧 Email: tongchaowei55@gmail.com
📱 App: PDF Reader & Viewer
We will do our best to respond as soon as possible.