Privacy Policy

Last updated: April 29, 2026

Our Privacy Commitment

At mergepdf.dev, privacy isn't just a policy — it's the foundation of how our tool works. Unlike traditional online PDF tools, we've built our service to ensure your files never leave your device. This isn't marketing speak; it's a technical reality.

What Data We Collect

Files You Process

We collect: Nothing. Your PDF files are processed entirely in your browser using the pdf-lib JavaScript library. They are never uploaded to our servers, never transmitted over the internet, and never stored anywhere except in your device's memory while you're using the tool.

You can verify this by opening your browser's Developer Tools (F12), going to the Network tab, and watching the network activity while merging PDFs. You'll see no file uploads.

Analytics Data

We use Google Analytics to understand how people use our site. This includes:

  • Pages you visit
  • How long you stay on the site
  • Your approximate location (city/country level)
  • Browser and device type
  • How you found our site (referrer)

We have IP anonymization enabled, which means Google Analytics doesn't store your full IP address.

Cookies

We use minimal cookies:

  • Google Analytics cookies — to track site usage (can be blocked with browser settings)
  • No tracking cookies — we don't use third-party tracking or advertising cookies

How We Use Your Data

The only data we collect (analytics) is used to:

  • Understand which features are most popular
  • Identify technical issues or errors
  • Improve the user experience
  • Make decisions about future features

We never sell, rent, or share your data with third parties for marketing purposes.

Third-Party Services

Google Analytics

We use Google Analytics to collect anonymous usage statistics. Google's privacy policy applies to this data: https://policies.google.com/privacy

CDN Services

We load the pdf-lib library from public CDNs (cdnjs.cloudflare.com or unpkg.com). These services may log requests for their own analytics, but they don't have access to your PDF files.

Font Services

We load fonts from Google Fonts. Google may collect basic request data. See their privacy policy: https://developers.google.com/fonts/faq/privacy

Your Rights

Since we don't collect or store your personal data or files, there's nothing to request, delete, or export. Your PDF files exist only in your browser's memory while you're using the tool.

For analytics data, you can:

  • Block Google Analytics using browser extensions like uBlock Origin
  • Enable "Do Not Track" in your browser settings
  • Use private/incognito browsing mode

Data Security

Because your files never leave your device, they're as secure as your device itself. We can't have a data breach of your files because we never have access to them.

Our website is served over HTTPS, which encrypts the connection between your browser and our server.

Children's Privacy

Our service is not directed at children under 13. We don't knowingly collect data from children. If you're a parent and believe your child has used our service, rest assured that no personal data or files were collected.

Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Continued use of the service after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions about this privacy policy, please visit our contact page.