Free forever · Runs in your browser
Combine multiple PDFs into one, in whatever order you choose. Files never leave your device — everything happens locally, so nothing is uploaded, stored, or seen by anyone.
Drop PDF files here, or click to browse
You can add more than one at a time
Are my files uploaded anywhere?
No. The merge happens entirely in your browser using JavaScript — your PDFs never touch a server. You could disconnect from the internet after this page loads and it would still work.
Is there a file size or count limit?
No artificial limit — only the memory of your own device, which for typical documents means dozens of files without issue.
Does this work on password-protected PDFs?
Not currently — remove the password first using your PDF viewer, then merge here.