DevTools.run

Merge PDF Files

Combine multiple PDF files into one. Drag to reorder, then download the merged result. Runs entirely in your browser — your files never leave your device.

Drag & drop PDF files here, or click to browse

Accepts multiple .pdf files

About PDF Merger

This tool combines multiple PDF files into a single document entirely in your browser. No files are uploaded to any server — everything is processed client-side using the pdf-lib library. Your documents stay private.

Drag and drop your PDFs, reorder them however you like, then click merge to download the combined file. Works with any standard PDF, including multi-page documents.

How it works

  1. Drop or select the PDF files you want to combine.
  2. Drag the rows to set the order they appear in the merged PDF.
  3. Click Merge — the combined PDF downloads instantly.

Features

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