📑 PDFを結合

複数のPDFファイルをブラウザ上で1つのドキュメントに結合

🔒 画像がデバイスの外に出ることはありません。 すべての処理はpdf-lib (client-side PDF manipulation)を使用してブラウザ内でローカルに行われます。アップロード、サーバー、追跡は一切ありません。

特長

  • Combine Multiple PDFs — 結合 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.

仕組み

  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. 結合 and download — Click 結合 to combine all files into one PDF. ダウンロード the result.

活用例

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

よくある質問

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 ページ directly without re-rendering, so fonts, images, and layouts are preserved exactly.

関連ツール