PDF Tools100% In-Browser WebAssemblyZero Server Cost

Merge PDF

Effortlessly merge multiple PDF documents into one cohesive file. Drag and drop to reorder files before merging. 100% processed client-side in your browser for instant speed and complete privacy.

Choose PDF files or drop them here

Select two or more PDF documents to combine into one. Files stay 100% on your device.

How to Merge PDFs with UFK Tools

Select Files

Choose two or more PDF files from your computer or phone.

Order Documents

Drag and drop the file cards into your desired sequence.

Merge & Save

Click Merge to instantly download the combined PDF.

Frequently Asked Questions

No! Merge PDF runs entirely in your local browser using client-side JavaScript. Your files never leave your computer.

Absolute Client-Side Privacy

Merging occurs 100% inside your browser using WebAssembly. Your documents are never uploaded to any server.

Learn more →

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