Merge PDF
pdf · merge · combine · join · 結合
📄
Drop PDFs or click to add
Approximate, based on the synodic month (~29.53 days); the real phase may differ slightly.
How to use
- 1
Upload your file, or drag and drop it onto the page.
- 2
Adjust the available options to fit what you need.
- 3
Download the result — everything is processed right in your browser.
FAQ
Is this tool free?
Yes — no sign-up, no installation, completely free to use right away.
What is this tool?
This tool combines several PDF files into a single, tidy document. Add the files in the order you want and download them merged into one PDF. It's great for pulling together contracts, receipts, or reports that arrived as separate files. Since everything is processed inside your browser, nothing is uploaded — so even sensitive documents stay private.
Are my uploaded files sent to a server?
No. Everything runs only on your own computer, inside your browser, and your files are never sent to a server or anywhere else. So you can use it with complete peace of mind, without worrying about your file contents leaking.
Are my PDFs uploaded?
No — everything runs locally in your browser.