PDF Merger

Combine multiple PDF files into one clean document in your chosen order, processed entirely in your browser.

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Interactive Tool Workspace

100% Client-Side Processing

Select PDF Files

Only PDF files are supported

Choose Files

How to use PDF Merger

Upload files: Drag and drop or click the upload area to select PDF files.
Arrange order: Use the Up and Down arrow buttons to sort your files in sequence.
Merge & download: Click the 'Merge PDFs' button to compile the files and save the resulting PDF locally.

Frequently Asked Questions

Q: What is the maximum file size I can upload?

Since files are merged in your local browser memory (RAM) and not sent to a server, there is no hard restriction. However, merging very large files (e.g. over 500MB combined) might experience latency based on your device specifications.

Q: Are my files secure?

Yes. All file actions run locally within your browser sandbox using `pdf-lib`. Your documents never leave your computer.