Relavancy

PDF Merge

Free

Drag in several PDFs and merge them into a single, ordered document instantly.

How to use PDF Merge — step by step

  1. 1Open the tool you want. Done — this page is saved in your browser, so it opens with no connection.
  2. 2Turn on airplane mode (optional).Anyone can claim a tool is private. Airplane mode is what proves it — with the connection off, there's nowhere for your file to go. Skip it and everything still works, but you won't have the added privacy protection of a 100% internet disconnect.Press the airplane-mode button on your own phone, tablet or laptop.The switch is on your device, not on this page. On some laptops and phones the airplane button leaves Wi-Fi or Bluetooth running — if the instrument still shows a connection, turn those off yourself. It reads Offline the moment the connection is really gone.
  3. 3Add two or more PDFs.
  4. 4Drag them into the order you want.
  5. 5Tap merge.
  6. 6Download the single combined PDF.

About PDF Merge

PDF Merge is a free online document tool from Relavancy. Drag in several PDFs and merge them into a single, ordered document instantly. Unlike most web-based tools that upload your files to a remote server, PDF Merge runs entirely in your browser — your documents, photos, and text never leave your device. It works on iPhone and Android as well as desktop, with no app to install and no account to create.

Why use PDF Merge?

  • One file out — combine multiple files into one.
  • 100% private: your files are processed in your browser and never uploaded to a server.
  • No login, no account, no watermarks on your output.
  • Works on iPhone, Android, Mac, and Windows — any modern browser, no install.
  • Instant output you can download or copy in one tap.

Common uses for PDF Merge

  • Prepare files for email, printing, or cloud storage without size or privacy worries.
  • Tidy up scanned paperwork before archiving or sharing with clients.
  • Anyone who needs pdf merge without installing software or creating an account.

Is PDF Merge right for you?

  • Works best with PDFs under 200 pages. Very large files may be slow or freeze on older phones — use a desktop for big documents.
  • Runs entirely in your browser — nothing is saved between visits, so download your result before closing the tab.

Frequently asked questions

Is this PDF merger free?
Yes — completely free, no signup and no payment. It's one of eight free tools on Relavancy.
Are my PDFs uploaded to a server?
No. Merging happens entirely in your browser. Your files never leave your device.
Is there a limit on how many files I can merge?
There's no fixed limit, but very large sets may be slow depending on your device's memory.

Pricing & privacy

PDF Merge is part of Relavancy's suite of 38 browser utilities. Eight tools — QR Code Generator, QR Code Scanner, Image Compressor, Read Aloud, PDF to Word, Word to PDF, PDF Merge, and PDF Compress — are free with no signup. Every other tool is included with a $4.99 day pass or $9.99/month plan. Because processing happens locally in your browser, your files are never uploaded to a server, making PDF Merge a private, secure choice for sensitive documents.

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This tool is free forever. Unlock all 38 tools — scan, PDF suite, OCR, e-sign & more — with a $4.99 day pass or $9.99/month.

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