MergeDoc

Free PDF Merger — Combine PDFs Online, No Upload

Most "PDF merger" sites upload your documents to a server before combining them. This one doesn't — the merge happens entirely in your browser using client-side PDF processing, so your files never leave your device.

Open the PDF Merger

Why use this

  • •No upload — files are processed locally in your browser
  • •No account, no email, no watermark added to the result
  • •Reorder files by dragging before merging
  • •No artificial file-size limit imposed by a backend

How it works

  1. 1.Select or drop the PDF files you want to combine
  2. 2.Drag to put them in the order you want in the final document
  3. 3.Click merge — the combined PDF downloads directly

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Frequently asked questions

Is this PDF merger really free?
Yes, with no usage limit, no sign-up, and no watermark on the merged file.
How many PDFs can I merge at once?
There's no fixed cap — the practical limit is your device's available memory, since everything runs locally.
Will the page order be preserved?
Yes, each source PDF keeps its internal page order; you control the order of the files themselves before merging.