PDF Merge

Combine multiple PDF files into one, right in your browser. Nothing is uploaded.

Click to choose PDF files, or drag them here

Add more anytime — merge order follows the list below.

About this tool

Merging happens entirely in your browser via pdf-lib — files are never uploaded. Reorder files with the arrows before merging.

Limits and edge cases

Password-protected PDFs can't be read. A truly empty PDF still contributes one blank page (a PDF format quirk). Large files run entirely on your device, so may take a few seconds.