Merge PDF

Drop several PDFs, arrange them in order, get one merged PDF.

100% in your browser. Your file never leaves your device.

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Features

  • Combine unlimited PDFs
  • Drag-and-drop file ordering
  • Preserves bookmarks and original quality
  • No upload — 100% client-side
  • Works on phone, tablet and desktop
  • Free forever

About this tool

Combine any number of PDFs into a single file. Files stay on your device — we never see them. The merged PDF is generated by pdf-lib running entirely in your browser.

How to merge PDFs

  1. Add files

    Click "Choose file" and select multiple PDFs (Ctrl/Cmd+click).

  2. Arrange order

    Files merge in the order shown — remove and re-add to reorder.

  3. Merge

    Click "Merge & Download". Everything happens locally.

  4. Save

    A single merged PDF is downloaded.

Frequently asked questions

Are my files uploaded?

No. Open your network tab — you will see zero traffic during merge.

Maximum number of files?

No hard limit — only your browser memory.

Are bookmarks preserved?

Page bookmarks from each source are kept.

Can I merge password-protected PDFs?

Yes if you can already open them. Truly encrypted PDFs need unlocking first (use the native app).

Free?

Completely free, no signup.