Merge PDF
Combine many PDFs into one.
Combine multiple PDF files — reports, scanned forms, chapters, invoices — into a single document, in the order you choose. Useful when you've received several separate PDFs that need to be reviewed, printed, or submitted as one file.
Files are processed on your device — never uploaded.
Supported formats
Accepts standard PDF files (.pdf). Password-protected PDFs need to be unlocked first using the Unlock PDF tool.
Things to know
Very large PDFs (500+ pages combined, or over 25MB per file) may be slow in some browsers since merging happens entirely on your device. If a specific PDF fails to merge, it may use an unusual internal structure — try re-saving it from its source application first.
How your data is handled
Merging happens entirely in your browser using JavaScript — your files are never uploaded to any server. Closing the tab discards everything.