Merge PDF Files

Combine multiple PDF files into a single document. Drag to reorder, then merge instantly in your browser.

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Drop PDF files here

or click to browse • Supports multiple files

✅ PDFs Merged Successfully!

✓ Files Never Leave Your Device ✓ Browser-Based Processing ✓ Privacy Safe ✓ No Server Upload Required

How to Merge PDF Files

How does this PDF merger work?

Our tool uses the pdf-lib library to process PDFs entirely in your browser. Your files are never uploaded to any server — all merging happens locally on your device.

Is there a file size limit?

Since processing happens in your browser, it depends on your device's memory. Most devices can handle files up to 100MB combined without issues.

Can I reorder pages before merging?

Yes! Simply drag and drop the PDF cards in the list to reorder them. The final merged PDF will follow the order you set.

Need to merge PDFs quickly and for free? Our online PDF merger lets you combine PDF files free — no registration, no file limits, and no watermarks. Simply upload your documents, drag to reorder them, and merge all PDFs into one file with a single click. Whether you need to concatenate PDF documents for work, school, or personal use, this tool processes everything directly in your browser. Your files never leave your device, ensuring complete privacy. It's the easiest way to merge PDF files free and combine multiple PDFs free online without any software installation.

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