Merge PDF Files

How to Merge PDF Files

1. Drag your PDF files onto the drop zone, or click to browse for them.
2. Reorder the documents with the up and down arrows until the sequence is right.
3. Remove any file you don't want with its remove button.
4. Click Merge PDFs and download the combined document.

Why use ZillaKit's Merge PDF tool?

The whole merge runs inside your browser with the pdf-lib library, so your documents are never uploaded to a server. Contracts, statements, scanned records, and anything else confidential stay entirely on your device. There's no signup, no watermark stamped on your output, and no file-count paywall for basic use. Because there's no upload or download round-trip to a remote server, merging is quick even for large files, and it keeps working offline once the page has loaded. You control the exact page order before combining, so the finished PDF comes out just the way you want it. Five free merges are included each day, with more available in seconds.

FAQ

Are my PDFs uploaded anywhere?

No. Merging happens locally in your browser. Your files never leave your device and nothing is sent to a server.

Can I choose the order of the files?

Yes. Each document has up and down arrows so you can arrange them exactly as you want before merging.

What about password-protected PDFs?

Encrypted PDFs can't be merged directly and will show a clear error. Remove the password with the original app first, then merge the files here.

Is there a limit on file size or count?

There's no hard limit, but very large jobs use more memory. We warn you above 100 MB so you can keep an eye on it.