Merge PDF
Merge two or more PDF files into a single document. Drag to reorder before combining. All processing happens locally in your browser — your files are never uploaded.
Add PDF files to merge
Add two or more PDFs. Drag order with the arrows. Processed locally — never uploaded.
Merge two or more PDF files into a single document. Drag to reorder before combining. All processing happens locally in your browser — your files are never uploaded. Merge PDF is a free, browser-based tool in the Toolsnest pdf tools collection — there is nothing to install, no account to create and no watermark on your results. It works on desktop, tablet and mobile, and because the work happens on your own device it stays fast even with large inputs.
How to use the Merge PDF
- Open the Merge PDF — no sign-up or software download is required.
- Drag and drop your file(s) into the tool, or click to browse and select them from your device.
- Choose any options you need, such as order, quality, page range or output format.
- Click the action button and let the tool process everything locally in your browser.
- Download the finished file. Your originals are never changed or uploaded.
Why use the Merge PDF?
- 100% free with no limits, no sign-up and no watermarks.
- Private by design — your files are processed in your browser and never uploaded to a server.
- Fast and lightweight, with instant results even on a phone or a slow connection.
- Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
- Part of a full pdf tools suite, so related merge pdf tasks are one click away.
Is it private and secure?
Your privacy is built in. The Merge PDF does all processing on your own device using client-side code, so your files are never transmitted, stored or seen by anyone — including us.
Frequently asked questions
How do I merge PDF files?
Add two or more PDFs, drag them into the order you want with the arrows, then click Merge. A single combined PDF is produced for download.
Is there a limit on how many PDFs I can combine?
No fixed limit — you can merge as many as your device's memory allows. Everything runs locally in your browser.
Are my PDFs uploaded to a server?
No. Merging happens entirely in your browser using pdf-lib, so your documents never leave your device.
Will merging keep the text selectable?
Yes. Pages are copied without rasterising, so text, links and bookmarks in the originals are preserved.