No-Upload PDF Merger — 100% In-Browser
Merge PDFs privately. Processed locally in your browser — your files never leave your device. No tracking, no limits.
How it works (client-side)
Everything runs on your device for total privacy.
1) Open Secure-Merge
Load the app in your browser. No account or signup needed.
2) Add PDFs
Drag and drop your PDF files or use the file picker.
3) Reorder
Arrange files or pages as needed. Preview stays local.
4) Merge & Download
Click Merge. Your combined PDF downloads instantly — nothing is uploaded.
Built for sensitive workflows
Contracts & NDAs
Keep confidential agreements on your device. Avoid cloud exposure.
IDs & Passports
Combine scans for travel or compliance without sending them online.
Case & Student Files
Legal and education scenarios where privacy is non-negotiable.
Prefer to work without internet? Try the Offline PDF Merger.
Frequently asked
Do my PDFs ever leave my device?
No. Secure-Merge runs entirely in your browser; nothing is sent to a server.
Can I use it offline?
Yes. After the first load, merging works without an internet connection.
Are there file size or page limits?
No artificial limits — only your device's resources.
Is the output quality preserved?
Yes. Merged PDFs preserve the original quality.
Merge PDFs securely — 100% private, no uploads
Processed locally in your browser. No tracking. No limits.