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Merge PDF

Combine several PDFs into one document, in the order you choose.

  • Browser based
  • No upload
  • Free
  • No sign-up
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PDF · Free · No sign-up

Your files stay on your device. Nothing is uploaded.

Instructions

How to merge pdf

Three steps, no account, and nothing to install.

  1. Add your PDF files

    Drag your files onto the drop area, or select them from your device. You can add more files at any point before merging, and the same file can be added twice if you need it to appear in two places.

  2. Put them in the right order

    Drag any file to move it. The order shown top to bottom is the order the pages will appear in the merged document, so what you see in the list is exactly what you get.

  3. Merge

    Press Merge. The work happens on your own machine, so speed depends on your device rather than on a queue, and a set of ordinary documents finishes in a second or two.

  4. Download the result

    Save the merged PDF. Nothing is stored anywhere, so once you close the tab the file exists only where you saved it.

Overview

About merge pdf

Combining PDFs is usually the last step before you send something: an invoice with its receipts, a signed contract with its annexes, a scanned form with the ID page that belongs with it. This tool joins any number of PDFs into a single document, in the order you choose, entirely inside your browser. Nothing is uploaded, so nothing has to be trusted or deleted afterwards.

Capabilities

What it does

  • Processed on your deviceFiles are read into browser memory and never sent anywhere. There is no upload to interrupt, no server-side copy to delete, and no retention policy to read.
  • Order you controlReorder by dragging. The list is the document — there is no hidden sort and no surprise on download.
  • Structure preservedBookmarks, internal links and metadata are carried into the merged file rather than flattened away.
  • No account, no limitNo sign-up, no email, no daily cap, and no watermark added to your document.

Your files stay with you

Merge PDF runs entirely inside this browser tab. The file you choose is read into your device's memory, processed there, and handed straight back to you — the bytes never cross the network, so there is no upload to intercept, no copy to retain and no retention policy to interpret.

You do not have to take that on trust. Open your browser developer tools, select the Network tab, and use the tool above: no request carries your document.

Answers

Merge PDF: common questions

Are my files uploaded to a server?
No. Merging runs in your browser using WebAssembly, and the file bytes never cross the network. You can confirm this yourself: open your browser developer tools, watch the Network tab, and merge a file. You will see no upload.
How many PDFs can I merge at once?
There is no fixed limit on the number of files. The practical ceiling is your device memory, because the whole document is assembled locally. Ordinary office documents merge in the hundreds without difficulty.
Will bookmarks, links and form fields survive?
Bookmarks and internal links are preserved and remapped to their new page numbers. Form fields are kept, but if two documents contain fields with the same name, the merged file will have a name collision — rename fields beforehand if that matters to you.
What happens to a password-protected PDF?
An encrypted PDF cannot be read until it is unlocked, so merging it will fail with a clear message rather than a corrupted result. Remove the password first, then merge.
Does merging reduce quality?
No. Merging copies page content across without re-encoding it, so text stays selectable and images keep their original resolution. The merged file is roughly the sum of its inputs.
Carry on

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