Is this PDF merger safe to use?

Yes. Your PDFs are processed entirely in your browser. They are never uploaded, and we have no way to see, store, or recover them.

Are my files uploaded to a server?

No. There is no upload step. The merged PDF is built locally on your device using JavaScript and saved directly to your downloads.

Does the PDF merger work on mobile?

Yes. It is fully responsive and works on phones and tablets. You can pick PDFs from your file storage and reorder them with the on-screen arrows.

Is there a file size limit?

There is no hard limit imposed by the tool. The practical limit is your device's RAM. Most modern phones and laptops can comfortably merge dozens of PDFs.

What about password-protected PDFs?

Password-protected PDFs cannot be merged unless they are decrypted first. The tool will tell you which file is the problem so you can unlock it and try again.

Will the page order match what I see in the list?

Yes. The order of files in the list is the order they will appear in the merged PDF, top to bottom. Drag rows or use the arrows to rearrange.

Tool 02 / Merge PDFs

Merge PDFs.
No upload required.

Drop in your PDFs, drag to set the order, and merge into a single file — all in your browser. Your documents never leave your device.

How to merge PDFs

Step 01

Add your PDFs

Drag and drop PDF files into the upload area, or tap to choose them from your device.
Step 02

Set the order

Drag rows to rearrange, or use the up/down arrows. The page order in the merged PDF follows your list, top to bottom.
Step 03

Merge & save

Tap "Merge PDFs." The combined file is built locally and saved to your device — no upload, no waiting.

Why this merger?

Fast

Merging happens at native browser speed using pdf-lib. No upload queue, no rate limits, no waiting.

Private

There is no server. Your PDFs are read, combined, and saved entirely on your own device — even paid services can't match that.

Free forever

No accounts, no per-file pricing, no watermarks on the output. Combine as many PDFs as your device can handle.

Merge PDF without uploading — here's why it matters

Merging PDFs is one of the most common document tasks — and one of the riskiest to do online, because it usually means handing contracts, invoices, or scanned IDs to a third-party server.

This merger keeps everything local. The PDFs are loaded into your browser's memory, combined using pdf-lib, and saved straight to your downloads folder. Nothing transits the network. There is no server log, no "temporary" cache on someone else's machine, and nothing to delete afterwards.

Need to bundle a stack of receipts or a scanned packet? Convert images first with our free image-to-PDF tool, then merge them here. After merging, you might want to compress the result, split out specific pages, or convert pages to images.

Questions, answered.

Yes. Your PDFs are processed entirely in your browser. They are never uploaded, and we have no way to see, store, or recover them.
No. There is no upload step. The merged PDF is built locally on your device using JavaScript and saved directly to your downloads.
Yes. It is fully responsive and works on phones and tablets. You can pick PDFs from your file storage and reorder them with the on-screen arrows.
There is no hard limit imposed by the tool. The practical limit is your device's RAM. Most modern phones and laptops can comfortably merge dozens of PDFs.
Password-protected PDFs cannot be merged unless they are decrypted first. The tool will tell you which file is the problem so you can unlock it and try again.
Yes. The order of files in the list is the order they will appear in the merged PDF, top to bottom. Drag rows or use the arrows to rearrange.