📑 Merge PDF

Merge multiple PDF files into a single document — all in your browser

🔒 Your image never leaves your device. All processing happens locally in your browser using pdf-lib (client-side PDF manipulation). No upload, no server, no tracking.

Features

  • Combine Multiple PDFs — Merge 2 or more PDF files into a single document. Drag to reorder before merging.
  • Reorder Pages — Rearrange the order of files with move up/down controls before combining.
  • 100% Private — All merging happens in your browser using pdf-lib. Your documents are never uploaded to any server.
  • Instant Processing — Merging is fast — even large PDFs combine in seconds without leaving your device.

How It Works

  1. Add PDF files — Drop multiple PDF files or click to browse. Add at least 2 files.
  2. Reorder if needed — Use the move up/down buttons to arrange files in the desired order.
  3. Merge and download — Click Merge to combine all files into one PDF. Download the result.

Use Cases

  • Combine multiple report chapters into a single document
  • Merge scanned pages into one continuous PDF
  • Assemble invoices or contracts from separate files
  • Combine assignment pages before submission

Frequently Asked Questions

Is there a limit on the number of files?

No hard limit. You can merge as many PDFs as your browser memory allows. For very large collections (50+ files), processing may take a few extra seconds.

Are my PDFs uploaded to a server?

No. All merging is done locally in your browser using the pdf-lib library. Your documents never leave your device.

Does merging preserve formatting?

Yes. The tool copies pages directly without re-rendering, so fonts, images, and layouts are preserved exactly.

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