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Merge PDF

Combine two or more PDFs into a single file. Drag to reorder, merge, and download — all processing stays on your device.

Drop PDF files to mergeor click to browse

How to merge PDF

  1. Drop or select two or more PDF files.
  2. Drag files to set the merge order.
  3. Click Merge PDFs, then download the combined file.

Private by design — PDF merging runs entirely in your browser. Your files are never uploaded to a server.

Related tools

Split PDFPDF to imageImage to PDF

Frequently asked questions

Is there a file size limit?

Very large PDFs may be slow or hit browser memory limits. For huge documents, split them first or merge in smaller batches.

Are my PDFs uploaded?

No — merging uses pdf-lib in your browser. Files never leave your computer.