How many PDF files can I merge?

No limit. Performance depends on your device memory.

Yes. Everything is processed in your browser. No file is sent to any server.

Is PDF quality preserved?

Yes. Pages are copied as-is, with no quality loss.

Can I merge password-protected PDFs?

No. Password-protected PDFs must be unlocked before merging.

Can I change the page order?

Yes. Reorder files by drag-and-drop before merging.

What is the maximum file size?

Warning above 100 MB. Actual limit depends on your device memory.

Does it work on mobile?

Yes. The tool works on all devices with a modern browser.

Merge PDF files

Drag and drop your PDF files, reorder them and merge them into a single document. Everything happens in your browser.

100% private - Local processing

Drop your PDF files here

or click to browse your files

Selected files ( files · pages)

Your files never leave your browser. No data is sent to any server.

PDF merged successfully!

pages ·

Merge PDF files online: free, fast and private

Merging PDF files is a common task: combining invoices, assembling report chapters, grouping administrative documents or joining supporting documents into a single file. Our PDF merge tool lets you do it for free, without registration and without usage limits.

What makes this tool unique is that it works entirely in your browser. Your PDF files are never sent to a remote server. Processing is done locally on your device. This ensures complete confidentiality of your documents, whether they are contracts, bank statements or personal files.

Usage is simple: drag and drop your PDF files into the designated area, reorder them by dragging within the list, then click the merge button. In seconds, your merged document is ready to download. The quality of the original pages is fully preserved.

This tool is compatible with all modern browsers (Chrome, Firefox, Safari, Edge) on desktop, tablet and smartphone. No software installation required.

Frequently asked questions

There is no limit imposed by the tool on the number of files. However, since processing happens in your browser, performance depends on the available memory on your device. For standard documents (a few MB each), you can merge dozens of files without any problem.

Absolutely. Your PDF files are processed 100% in your web browser. No file is sent to our servers or stored in any way. You can even use the tool offline once the page is loaded.

Yes. The merge copies pages as-is, without recompression or modification. Images, text, links and bookmarks on each page are preserved identically in the final document.

No. PDF files protected by a password (encryption) cannot be processed by this tool. You must first remove the password protection using the software that created it, then merge it here.

Yes. After adding your files, you can reorder them by dragging and dropping within the list. The order of files in the list determines the page order in the final document. All pages from each file are added in order.

The tool displays a warning beyond 100 MB per file. The actual limit depends on the RAM available in your browser. On a modern computer with 8 GB of RAM, you can typically process files of several hundred MB.

Yes. The tool is fully responsive and works on smartphones and tablets. You can select files from the Files app (iOS) or file manager (Android) and merge them directly in your mobile browser.