Runs in your browser — nothing is uploaded
Merge PDF files online
Combine multiple PDF documents into a single file. Everything runs in your browser — nothing is uploaded.
Private by design · No account needed
Merge PDF
Drop your PDF here
or
PDF only · Up to 200 MB per file
Private by design · No account needed
0 bytes uploaded — processed entirely on your device.
How it works
Merging PDFs, simply explained
Merging appends the pages of each PDF one after another into a new document. Add files in the order you want them to appear, moving them up or down as needed. Page sizes and content are kept exactly as they are in the originals.
Private by design.
Your file is processed in your browser and is not uploaded to a server or saved in browser storage. Cloudflare Web Analytics measures page views and performance; it does not receive PDF contents or filenames. Local processing does not guarantee a PDF is safe to open; only open files from sources you trust.