Merge PDF Files
Pick your PDFs, arrange the order, download one combined file. Your documents are processed on your device — nothing is ever uploaded.
Drop PDF files here, or click to choose (multiple allowed)
Add at least two PDF files.
Are my PDFs uploaded?
No. Merging happens entirely in your browser using the open-source pdf-lib library (bundled — no CDN). Your documents never touch a server, which makes this safe even for contracts and private files.
Any limits?
Practical limit is your device's memory — hundreds of pages are fine. Password-protected PDFs can't be read; remove the password first.
Does it keep quality?
Yes — pages are copied as-is, with no re-compression.