Merge PDF files into one
Drop in the files, drag them into the right order, download one PDF. Works with dozens of files and keeps every page at full quality.
How to merge PDF files into one
- 1
Drop in your files
Two or more PDFs, from your computer or straight off your phone.
- 2
Set the order
Drag the files into position. Add page ranges if you only want part of a file.
- 3
Download
One PDF, ready to send. Nothing was uploaded to get it.
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.
What people merge PDF files for
Merging is the most common PDF job in an office, and it is almost always the same handful of situations. Knowing which one you are in tells you whether you need the whole file or just part of it.
- A signed contract: the agreement, the signature page that came back scanned, and the annexes.
- An expense claim: the form, then every receipt photographed on a phone.
- A tender or application pack, assembled from documents several people wrote.
- A year of invoices, merged into one file for the accountant instead of twelve attachments.
Order matters more than anything else
The merged document follows the order of the list, so arrange the files before you merge rather than fixing the pages afterwards. If a file only contributes part of itself, give it a page range — 1-3, 8 — and the rest is left out. That one habit removes most of the tidying up that usually follows a merge.
Scanned fronts and backs
A scanner without duplex support gives you two files: all the fronts, then all the backs. Merging them puts the document in the wrong order. Alternate & Mix is the tool for that job — it takes one page from each file in turn, and it can reverse a file that came out of the feeder backwards.
Nothing is uploaded
The tool is code running in this browser tab. It reads the file from your disk, does the work in memory, and writes the result back to your downloads folder. No copy reaches us, which is the honest answer to the question every IT policy asks about online file tools: there is no server-side copy to be leaked, subpoenaed or forgotten about.
If the merged file is too big to send
Photographed receipts and scans add up fast, and a merged pack can land over an attachment limit. Compress PDF usually solves it in one pass; Split by size is the fallback when it has to go in parts. And if the merge picked up a blank sheet or two, Delete pages takes them out.
Frequently asked questions
How many files can go in one merge?
There is no fixed limit. Twenty or thirty files is routine; the practical ceiling is your device’s memory.
Can I take just a few pages from a file?
Yes. Put a range such as 2-4, 9 under any file and the merge uses only those pages.
What happens to bookmarks and form fields?
They come across into the merged file. Pages are copied, not re-encoded, so quality is identical.
Where is my file processed?
On your own machine. The tool is code that runs inside your browser tab, so the document is never sent to us and never sits on a server waiting to be cleaned up.
Is there a catch?
No. No account, no daily cap, no watermark and no paid tier that unlocks the useful half.