Merge PDF
Combine PDFs in the order you want. Optionally pick pages from each file.
Use Merge PDF — freeRuns in your browser. Your files are not uploaded. Free account required.
How it works
- Open Merge PDF and log in (free).
- Drop your files in or choose them from your device.
- Adjust the options if you like, press the button and download the result.
Why use PDF World
- Private by design — on-device tools never upload your files.
- No watermarks and no hidden limits on file size for on-device tools.
- One place for everything — merge, split, compress, convert, edit, sign and more.
Frequently asked questions
Is Merge PDF free?
Yes. Merge PDF is free to use with a free PDF World account. Paid plans only raise limits such as batch size and the daily AI allowance.
Are my files uploaded?
No. This tool runs entirely in your browser, so your files never leave your device.
Do I need to create an account?
Yes — a free account is required to use the tools. It keeps the service safe from abuse. Sign-up takes a minute with your email.
Which files can I use?
PDF. You can select several files at once.
Will it add a watermark?
No. PDF World never adds watermarks to your results.
Related tools
Split PDFSplit into several PDFs by ranges, every N pages, or one file per…Smart splitSplit by rule: a text pattern that starts each new document,…Delete PDF PagesDelete unwanted pages from a PDF.Remove blank pagesDetect pages with no text and almost no ink, and delete them.Extract PDF PagesPull selected pages into a new PDF (in the order you type them).