Merge PDF Online Free with Unified PDF
Merge PDF files without uploading. Fast, secure, and fully private — merge PDF in browser with no upload, no storage, and no tracking.
Files never leave your device — 100% browser based and free to use.
Merge PDFs Quickly & Securely — Merge PDF in Browser
Combine multiple PDF files instantly in your browser. No upload needed, so your files stay private and secure. No registration required, no software to install.
Drag & drop PDF files here
or to select files (up to 20 files, max 10MB each)
Processed locally, no upload or storage, completely free and private.
Additional PDF Tools
Image to PDF
Convert JPG, PNG, and other images to high-quality PDFs entirely in your browser.
PDF to Excel
Use Free Online ToolRemove Image Background
Click below to use the free remove.bg online tool for high-quality background removal.
Why Choose Unified PDF for Secure PDF Merging? — Merge PDF Without Uploading — 100% Local Processing
Unlike traditional PDF mergers that upload your files to servers, Unified PDF processes files entirely in your browser. No upload, no storage, no tracking. Your files never leave your device, ensuring maximum privacy and security.
File Upload Tools
Files are sent to remote servers and stored, risking privacy and data breach.
Unified PDF
All merging happens locally in your browser. Files stay on your device and are deleted immediately after processing.
Fast PDF Merge With No Uploads — A Fast PDF Merger Online
Instant merging of PDFs directly in your browser — no waiting, no uploads. Perfect for large files with zero delays or bandwidth limits.
How It Works
- Choose your PDFs: Drag & drop or browse your PDF files to upload locally in your browser.
- Customize: Pick options like output filename or 4-in-1 page merge.
- Merge: Click ‘Merge PDFs Now’ to combine your files instantly—no upload needed.
- Download: Get your merged PDF file immediately, ready to save or share.
Frequently Asked Questions
Is my PDF data secure?
Yes. All merging happens in your browser. Files never leave your device, and no data is uploaded or stored.
Is this tool free?
Absolutely. Unified PDF is completely free to use without any hidden costs or subscriptions.
Can I use this on any device?
Yes. This tool works on any modern browser on desktop, tablet, or mobile devices.
Do you store my files?
No. Unified PDF does not store, upload, or transmit your files. Everything is processed locally in your browser, and files never leave your device.