Privacy Policy

1. Our Commitment to Privacy

MusePDF ("we", "us", "our") is fundamentally a privacy-focused service. This Privacy Policy outlines our unwavering commitment to protecting your privacy. Our core principle is simple: your files are your files. For the local tools we do not and cannot view, access, store or share your documents; all processing happens on your own computer, within your web browser (client-side). Optional cloud features are described in section 4.

1.1 The Client-Side Principle

The local tools do not upload your files to a server for processing. They are powered by JavaScript and WebAssembly that run directly on your device, so for these tools your data stays on your computer. Optional cloud features — AI, very large files — send the file, or the text they need, to our servers for that step only.

2. Information We Do Not Collect

Because the local tools run client-side, we do not receive the following information from them:

• The content of your PDF files or any other documents you use with our tools.
• Any personal data contained within your documents.
• Filenames of your documents.
• Any derived information or metadata from your files, beyond what is necessary for the tool to function during your active session (and this is immediately discarded).

3. Information We May Collect (Non-Personal Data)

To improve our website and services, we may collect anonymous, non-personally identifiable information. This type of data helps us understand how users interact with our site, which tools are most popular, and how we can improve the user experience. This includes:

• Usage Analytics: Anonymized data such as which tools are used, how often they are used, and which features are accessed. This is aggregated and is never linked to your documents or their contents.
• Performance Data: Anonymized error reports or performance metrics to help us identify and fix bugs. This data contains no personal information or file content.

We use Google Analytics (through Google Tag Manager) to count anonymous visits and see which tools are used. It is loaded only after the page has finished loading, and it runs in cookieless mode: GA4 writes no cookie and receives no identifier that survives your visit. No file name, file content, page text or search text is sent.

4. Third-Party Libraries

MusePDF is built using powerful, open-source libraries like PDF-lib.js and PDF.js. These libraries are trusted by developers worldwide and operate under the same client-side principle. While we have vetted these libraries, we encourage you to review their respective privacy policies for your own peace of mind.

5. Security

Files used with the local tools are not transmitted over the internet to our servers, so you are protected from potential data breaches in transit or in storage. The security of your documents is in your hands and protected by the security of your own computer and web browser.

6. Children's Privacy

Our services are not directed at individuals under the age of 13. We do not knowingly collect any personal information from children. If you believe a child has provided us with personal information, please contact us, and we will take steps to delete such information.

7. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last Updated" date at the top. You are advised to review this Privacy Policy periodically for any changes.

8. Contact Us

If you have any questions about this Privacy Policy, please contact us at 1003977936@qq.com.