PDF Merger
Upload PDFs, drag to reorder, merge and download (local-only).
Tip
What is Pdf Merger
Merge several PDF files into one document in the browser. Drag files in, sort them into the order you want, merge with pdf-lib and download the combined result — the privacy note explains that files never leave your machine.
How to use Pdf Merger
- Drop or select two or more PDF files
- Sort the list into the desired order
- Merge and download the combined PDF
Frequently asked questions
Is there a file count or size limit?
Merging runs locally, so the practical limit is your browser memory — very large files can take a moment to process.
Are the PDFs uploaded anywhere?
No — pdf-lib merges the files entirely in your browser.
Will password-protected PDFs merge?
Encrypted PDFs can fail to load — decrypt them with the original password first, then merge.
Is Pdf Merger free?
Pdf Merger is completely free — open the page and use every feature with no hidden charges.
Do I need to download or install Pdf Merger?
No download or installation is needed. It is an online tool that runs in the browser on your phone, tablet and computer.
Do I need an account to use Pdf Merger?
No. Use the tool right away — no account or sign-in required.
Does Pdf Merger work on mobile?
Yes. The page is fully responsive and works on phones, tablets and desktop browsers.