Merge PDF Files Online
Combine multiple PDF files into a single document. Add as many PDFs as you like, drag pages into the order you want, then download the merged file.
Use the controls on each page thumbnail to rotate, reorder, or delete pages.
About the PDF Merge Tool
This free online PDF merge tool combines two or more PDF files into a single document, directly in your browser. It's built for the common situation where a submission needs to be one file — a cover letter, a main report, and scanned annexes or appendices — rather than several separate attachments.
How it works
Add PDF files one at a time or several at once; each file's pages are added to a single running page list that you can then reorder, rotate, or trim before downloading. There's no page limit imposed by a server, since the merge happens using client-side PDF libraries running locally on your device.
Common uses
- Combining a government application form with its supporting scanned documents into one PDF
- Merging multiple report chapters or sections into a single final document
- Assembling scanned receipts or invoices into one file for accounting or reimbursement
Privacy
Files are never uploaded to a server for processing — everything happens locally in your browser, which matters when the documents involved are confidential or official.
Need to go the other way? See split a PDF into separate pages. To fine-tune page order or orientation first, see rotate, delete & reorder PDF pages.
Frequently Asked Questions
How many PDFs can I merge at once?
As many as you like — add files one batch at a time or all together, then reorder pages before downloading.
Are my files uploaded to a server?
No. Merging happens entirely in your browser using client-side PDF libraries; your files never leave your device.