Merge PDF files online
Merge PDF files into one document in seconds. Put them in any order, pick the pages you need from each file, and download a single PDF.
How to merge PDF files online
- 1
Add your PDFs
Select two or more PDF files, or drag them onto the page.
- 2
Arrange them
Drag the files into the order you want. Optionally choose which pages to include from each file.
- 3
Merge and download
Click Merge and download your combined PDF right away.
Private by design
Your files are processed on your own device and never uploaded to a server.
Fast
No waiting for uploads or downloads. Results are ready in seconds.
Free, no signup
Use every tool without creating an account or adding a watermark.
A PDF merger that runs in your browser
Most sites that merge PDF files upload your documents to a server, combine them there and hand back a download link. This one does the work on your own computer: the files are read in the browser, merged, and saved straight back to your downloads folder. Nothing is uploaded, there is no queue, and a 50 MB merge finishes about as fast as your disk can read it.
The page order is the file order. Drag the files up and down until the list matches the document you want, and the pages follow. Bookmarks, links and form fields from each file are carried into the merged PDF, and pages are copied without being re-compressed, so nothing loses quality along the way.
Combine only the pages you need
You rarely want every page of every file. Under each file you can type the pages to take from it — for example 1-3, 8, 12 — and only those pages go into the result. It saves a round trip through a separate tool when you are building one document out of pieces of several others.
- A contract plus its signed signature page and a scanned annex.
- Twelve monthly invoices combined into one file for your accountant.
- A report where chapter 3 comes from an older version of the document.
Merging scanned pages
If your scanner produced one file with the odd pages and another with the even pages, merging them end to end gives the wrong order. Use Alternate & Mix instead: it takes one page from each file in turn, and can reverse a file that was scanned back to front.
Your files never leave your device
This tool is JavaScript running inside your own browser. Your PDF is read from your disk into the browser’s memory, changed there, and written back out as a download. It is never uploaded, so there is no copy of it on our servers to leak, and nothing to delete afterwards. That matters for contracts, payslips, medical letters, ID scans and anything else you would not email to a stranger.
After you combine your PDFs
A merged document usually needs a little tidying. Organize PDF lets you drag the pages into place and rotate anything sideways, Delete pages removes the blank sheets a scanner adds, and Split PDF takes the document apart again if you merged one file too many.
Frequently asked questions
Are my files uploaded to a server?
No. This tool runs entirely in your web browser, so your files never leave your device. That makes it safe for contracts, invoices and other private documents.
How many PDFs can I merge at once?
As many as your device can handle. Merging dozens of files is normally no problem.
Can I merge only some pages of a PDF?
Yes. Type the pages you want under each file, for example "1-3, 5", and only those pages are included.
Does this PDF combiner work on a phone?
Yes. The merger runs in the browser, so it works on iPhone, iPad and Android as well as on a computer. Pick the files from your phone’s storage, and the merged PDF is saved back to Downloads.
Are bookmarks and links kept?
Yes. Bookmarks, links and form fields from each file are carried into the merged PDF, and pages are copied without being re-compressed, so nothing loses quality.
Is it really free?
Yes. You can use it as often as you like, with no signup and no watermark on your files.