Yes. Unlimited use, no registration and no watermark.

Merge PDF — Free Online Tool

Merge PDF is the free online tool to combine two or more PDF files into a single document. With PDFStudio Pro you drop the files, reorder them if needed, and download the merged result in seconds. Processing runs entirely in your browser — your files never leave your device. No account is required and no watermark is added. Students use Merge PDF to combine lecture notes and assignments; businesses use it to assemble contracts, proposals and reports; individuals use it to organise personal scans and multi-page forms. The tool accepts standard PDF files and works on current Chrome, Edge, Firefox and Safari on Windows, macOS, Linux, Android and iOS. Because everything is local there is no artificial server-side file-size limit — only the memory of your device matters.

Open Merge PDF tool now

Step-by-step instructions

Open the Merge PDF tool.
Add two or more PDF files by drag-and-drop or file picker.
Reorder the list if the sequence is wrong.
Click Merge PDF and download the combined file.

Supported formats

PDF (.pdf). Multi-file supported.

Privacy & security

Files are processed locally in your browser. We do not operate an upload endpoint for this tool. Temporary data is released when you leave the page. The site is served over HTTPS. See our Privacy Policy.

Pricing & workflow

Price: Free forever — no limits, no watermark. Workflow: open tool → add file(s) → process in browser → download. Works offline for most operations once libraries are loaded. Compatible with Chrome, Edge, Firefox and Safari on desktop and mobile.

Frequently asked questions

Is Merge PDF free?

Yes. Unlimited use, no registration, no watermark.

Are my files uploaded?

No. Processing is 100% in-browser.

Can I use it on mobile?

Yes, on modern mobile browsers.

Is there a file size limit?

We do not set a server limit. Practical limits depend on your device memory.

Does it add a watermark?

No. Output contains only your content.