Your files never leave your device

Merge PDF Files Into One

Put the files in the order you want, then merge them into one document.

Drop your files here
or click to browse your device
Supported formats: PDF

How to use it

  1. Drag your PDF files onto the box above, or click to select them. You can add more at any time.
  2. Reorder them with the up and down buttons until the numbers match the order you want.
  3. Click “Merge” and download the finished document.

Combining several PDFs into one document comes up constantly: attaching multiple documents to a government application, collecting a month of invoices, or joining report chapters that were written separately. This tool merges any number of files while preserving page order and original quality.

Order matters, so each file shows a number marking its place in the finished document. Use the up and down buttons to rearrange before merging. We show numbers rather than relying on visual position alone, because reading direction differs between Arabic and English — a number is unambiguous either way.

The merge runs inside your browser using a PDF library that works locally. Nothing is uploaded, which makes this suitable for sensitive material — contracts, official paperwork, medical records.

Frequently asked questions

We impose no limit. The practical ceiling is your device's memory, and merging dozens of files usually works without trouble on modern hardware.

No. Pages are copied across as they are, with no re-compression, so text stays selectable and searchable and images keep their original resolution.

No. Encrypted files can't be read without the password, and you'll see a message saying so. Remove the protection from the file first, then try again.

No. The merge happens entirely inside your browser and no part of your documents leaves your device.