Merge PDF

Merge PDFs.
Drag, drop, done.

Combine any number of PDF files into a single document directly in your browser. Drag to reorder, then download — no server involved.

—Combine unlimited PDF files

—Drag-and-drop to reorder

—Download as a single PDF

—Works with Wi-Fi disabled

—No account required

—5 free uses per day

Don't trust us.
Verify it yourself.

Open DevTools → Network while converting. You'll see zero outbound requests. Every byte stays inside your browser tab.

—Works offline — no internet connection required

—Nothing is uploaded — ever

—Designed for sensitive documents

ZERO OUTBOUND CALLS

ElementsConsoleNetworkSources

FilterAll · XHR · JS · Wasm

NameStatusTypeSize

converter.worker.js200script48 kB

pdf.worker.wasm200wasm312 kB

✓ No requests to external servers

How many PDFs can I merge at once?

There is no hard limit. You can merge as many PDFs as your device memory allows — typically dozens of files without any issue.

Are my files uploaded anywhere?

No. All processing happens inside your browser using WebAssembly. Your PDFs never leave your device — you can confirm this in DevTools → Network.

Can I reorder pages before merging?

Yes. Drag and drop the uploaded files to set the order before combining them. The merged PDF will follow that sequence.

Is the merge tool really free?

Yes — the merge tool is free for up to 5 uses per day. Unlimited usage is available on the Pro plan.

Can I merge confidential or sensitive PDFs safely?

Yes. Because merging runs entirely in your browser, sensitive files (medical records, legal contracts, financial documents) never reach any server.

Does merging affect the quality or formatting of the original PDFs?

No. The merge operation preserves each document's content, fonts, images, and structure exactly as they appear in the originals.