Runs on your device中文
LITTLE TOOLS. LESS FRICTION.

Merge PDF files

Bring your documents together in the right order, with their original content and clarity.

Merge PDFs100% local

01Add your file

Drop your PDF here or select a file from your device Choose PDF PDFMultiple files

02Make it fit

Output settings

Everything, in the right order.

Add your PDFs on the left. Use the arrows beside each file to arrange them before merging.

0files0pages in total

No upload. No sign-up. No watermark.

Your file stays in your browser, from start to finish.

Three steps. One less thing to do.

No installation. Just open and get it done.

01 — 02 — 03
  1. 01

    Choose your file

    Drag in two or more PDF files

  2. 02

    Make it your own

    Order them with the arrow buttons

  3. 03

    Save to your device

    Click Merge and download the combined file

One less upload. A little more peace of mind.

Personal photos, ID pictures, important documents. They stay on your device. We bring the tools; you keep the files.

Our approach to privacy

A few more handy tools

Just as simple. Just as private.

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Make an image fit a file size limit

HEIC to JPG

Make iPhone photos work everywhere

Split PDF

Keep the pages that matter

Markdown to PDF

Print-ready PDF from Markdown

Markdown to Word

Editable .docx with real styles

THE DETAILS

A little more about this tool

What it does

This tool joins several PDF files into a single document, in the order you choose. Pages are copied without re-rendering. Text remains selectable when it was selectable in the source. Document-level signatures, bookmarks and interactive forms may not be preserved; inspect the output and keep the originals.

Good to know

There is no server-side limit because there is no server. Practical limits come from your device memory: large files and hundreds of pages may need a desktop browser with more available memory.

Verify the no-upload promise

Open developer tools → Network, then process a file. First use may fetch a static processing module from this site. Inspect the request payloads: none contains your selected file. Processing and generated downloads happen on your device.

FAQ

Good questions, clear answers

Are my files uploaded to a server?

No. Merging runs entirely in your browser using JavaScript. Nothing is transmitted, stored or logged. You can watch the Network tab to confirm.

Is it really free, with no signup?

Yes. No account, no email, no watermark, no page quota.

What is the maximum file size?

The limit depends on the memory available to your browser. Processing happens locally, so speed depends on your device.

Will the merged PDF lose quality?

No. Pages are copied without re-rendering their images. Selectable source text remains text, but scanned images do not become selectable and document-level features may change.

Does it work on iPhone or Android?

Yes. The page is a normal website — no app install. On mobile you can pick files and download the result, though very large files are better handled on desktop.