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Merge PDF

Combine multiple PDF files into one document, in the order you choose.

or drop them here

🔒 Processing happens in your browser – your files are not uploaded anywhere.

How to merge PDF files

  1. 1
    Click "Select PDF files" or drop your files into the box. You can select several files at once and add more later.
  2. 2
    Drag the files into the right order – the leftmost document comes first in the new PDF. Remove a file with ✕.
  3. 3
    Click "Merge PDF" and the merged document downloads to your device right away.

Merge PDF files without installing software

Merging PDF documents is one of the most common office tasks. You scanned both sides of an ID card into two files but the portal wants one document? You have several invoices to send to your accountant in one email? An application requires all documents in a single PDF? Merge PDF handles all of this in seconds.

Just select the files, put them in order and click the button. The result is one PDF that contains every page of every selected document, in the order you chose. Quality does not change – text stays text, images keep their original resolution and links are preserved.

Your files stay with you

Unlike many similar services, PDF Alati merges documents directly in your web browser. Files are never uploaded to our server, so merging is fast and completely private – ideal for contracts, personal documents, medical records or business reports.

Tips for the best result

  • Number your files (01-request.pdf, 02-attachment.pdf…) before selecting them – they will appear in the right order immediately.
  • Check the order using the first-page thumbnails before merging.
  • If the merged file is too large for email, shrink it with Compress PDF.

Password-protected PDFs cannot be merged until they are unlocked – use Unlock PDF if you know the password.

Frequently asked questions

Is merging PDF files free?
Yes, completely free, with no sign-up, no limit on the number of files and no watermark.
Are my files uploaded to a server?
No. Merging happens in your browser, so your files never leave your device.
How many files can I merge at once?
There is no limit. The practical limit depends on your device memory – on a computer you can merge dozens of documents.
Does merging reduce quality?
No. Pages are copied without re-encoding, so text, images and fonts stay identical to the original.
Can I merge PDFs on my phone?
Yes. The tool works in the browser on Android phones and iPhones.

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