Privacy Policy

Last Updated: November 1, 2025

Our Privacy Commitment

PDFCombiner is built with privacy as the foundation. Your PDFs never leave your device.

What We Do

100% Client-Side Processing:

✓ All PDF merging happens entirely in your web browser
✓ Your PDF files are processed using JavaScript libraries running on your device
✓ No files are uploaded to our servers or any third-party servers
✓ Files are loaded into browser memory, processed, and immediately cleared after download

Data Collection

We Collect: Nothing. Zero. Nada.

❌ No file uploads to servers
❌ No user accounts or authentication
❌ No tracking cookies or analytics
❌ No logging of file names or content
❌ No third-party integrations that access your files

Local Browser Storage

History Feature:

Your merge history is stored locally in your browser using IndexedDB
This data includes: file names, page counts, and merge timestamps
This data never leaves your browser
You can clear this history at any time using the "Clear All History" button
History is automatically deleted when you clear your browser data

URL State:

When you use the "Share Configuration" button, merge configuration is encoded in the URL
This allows you to share your merge setup with others
No sensitive file content is included in the URL - only configuration (e.g., number of files, file names)

Technology Stack

PDF Processing Libraries:

pdf-lib: Client-side PDF manipulation (open source)
PDF.js (Mozilla): PDF rendering and thumbnails (open source)

Both libraries run entirely in your browser and do not communicate with external servers.

Your Rights

Since we don't collect any data, there's nothing for us to:

Share with third parties
Sell to advertisers
Store on our servers
Delete upon request (because we never had it)

Security

Your PDFs Stay Private:

Files remain in browser memory only during processing
Memory is cleared immediately after merge completion
No temporary files created on servers
No file content transmitted over the network

HTTPS:

All connections to PDFCombiner use HTTPS encryption
This protects you from network-level eavesdropping
However, actual file processing happens entirely offline in your browser

Changes to This Policy

If we ever change how we handle data, we will:

Update this document with a new "Last Updated" date
Notify users via a banner on the homepage
Never retroactively apply changes to data we don't have

Questions?

Since we don't collect data, we can't contact you individually. However, if you have questions about our privacy practices, you can verify our claims by:

Inspecting the browser Network tab (you'll see no file uploads)
Reviewing our open-source code
Using browser DevTools to see local-only storage

Summary

The Bottom Line:

Your PDFs never leave your browser
We don't know what files you merge
We don't track your usage
Your privacy is protected by design, not just by policy

PDFCombiner: Privacy-First PDF Merging

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