Merge PDFs

Combine multiple PDF files into a single document. Drag to reorder before merging. 100% browser-side — your files never leave your device.

Drop PDF files here or click to upload

Select multiple PDFs — drag to reorder below

Free Online PDF Merger — Combine PDFs Instantly

Need to combine multiple PDF documents into one? Our free PDF merger processes everything directly in your browser using the pdf-lib library — no server uploads, no size limits, and 100% privacy guaranteed.

Features

  • Drag & Reorder: Easily rearrange the order of your PDFs before merging.
  • Unlimited Files: Merge as many PDFs as you need in one go.
  • 100% Private: Your files never leave your device. Processing is entirely client-side.

FAQ

Is there a file size limit?

There is no hard limit. Performance depends on your device's memory and browser capabilities.

Will the quality be affected?

No. The merger copies pages byte-for-byte without any re-encoding, preserving 100% original quality.