Merge PDF
Combine files into one. None of them leave this tab.
Free and unlimited, on your device. Pro adds batch, searchable PDFs, compress-to-a-size and passwords — $14.99 once. What Pro adds · Buy Pro
Drop your PDFs here
or click to choose them — you can set the order next
Order to merge
What gets kept
- Every page, at its original size and quality.
- Bookmarks, nested under each source file's name.
- Links inside a file. Links pointing between files cannot survive a merge.
- Form fields, renamed where two files use the same name — sharing a name in PDF means sharing a value.
- Mixed page sizes stay mixed. We will not scale an A4 contract to fit a Letter cover page.
Merging on your device
0%
- Copying pages waiting
- Rebuilding bookmarks waiting
- Writing the file waiting
Copying the pages and rebuilding the bookmarks are both quick; reading the source files and writing the finished one are what take the time. Your device is doing all of it, so nothing has been sent anywhere — stopping just stops the work.
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Questions
Is it safe to merge a PDF online?
Nothing is uploaded, so there is no copy on a server to trust. The counter at the foot of this page shows bytes sent, and it stays at zero.
Does this work offline?
Yes. Once the page has loaded, turn off your wifi and use it — it keeps working. Keep the tab open: reloading needs a connection.
Is there a file size limit?
60 MB. Past that a browser tab stops being able to write the finished file out and sits unresponsive for minutes — it does not crash, it stops being usable — so we refuse rather than hang.
Do I need an account?
No. It needs no account to use, and there is no limit on how many files you run through it.
Is there a watermark?
No. Nothing is added to the file.
What happens to my file?
It stays on your device. The counter at the foot of every page shows bytes sent and third-party requests, so you can check that rather than take our word for it.