ALLYX ONE
100% browser-based · zero uploads

PDF Merger

Combine multiple PDF files into one in seconds — free, no account required, and nothing leaves your device. Add your files, drag to set the order, and download the merged result instantly.

Drop your PDFs here, or click to browse

Add two or more PDF files · up to 100 MB each

How It Works

1

Add your PDFs

Drop two or more PDFs onto the page or click to pick them from your device. Up to 100 MB per file.

2

Set the order

Drag the rows in the list to arrange your files in the exact order you want them to appear in the final PDF.

3

We merge it here

Your PDFs are combined entirely on your device — not sent anywhere. Pages are copied directly, keeping text selectable and links intact.

4

Download your result

See the combined file size, then download the merged PDF straight to your device.

How to Merge PDF Files Online

  1. Drag and drop your PDF files onto the upload area, or click to choose them from your device.
  2. Review the list — drag rows to reorder files. The numbered label shows the final page sequence.
  3. Click Merge PDFs and wait a moment while your browser combines the files.
  4. When complete, you'll see the total input size and the output file size.
  5. Click Download merged.pdf to save the combined file.

Features

  • Your files stay private: Merging happens entirely in your browser — nothing is uploaded or stored.
  • No account required: Open the page and start merging straight away.
  • Drag-to-reorder: Arrange files in any order before merging — no need to rename files to control page order.
  • Text and links preserved: Pages are copied natively using pdf-lib, so selectable text, clickable links, and existing formatting are kept intact.
  • Merge as many files as you need: No cap on the number of PDFs per merge.
  • Up to 100 MB per file: Handles large multi-page documents.

Frequently Asked Questions

Are my files uploaded to your servers?

No. Your files never leave your device. Everything runs in your browser — nothing is sent to or stored on our servers.

Is this free to use?

Yes, completely free. No account required, no watermarks, and no hidden charges.

How many PDFs can I merge at once?

As many as you like. Each file can be up to 100 MB. For very large batches, processing time will depend on your device's speed.

Will text still be selectable after merging?

Yes. This tool copies the original pages directly using pdf-lib, so text remains selectable and searchable, and clickable links are preserved. No re-rendering is involved.

Can I change the order of the PDFs?

Yes. After adding your files, drag the rows in the list to rearrange them in any order. The numbered labels update in real time so you always know the final page sequence.

Which browsers are supported?

This tool works in all modern browsers — Chrome, Firefox, Edge, and Safari. No plugins or extra software needed.