Combine multiple PDFs into one document in seconds without ever uploading your files to the cloud.
Drag & drop PDF files
or click to browse your device
Accepts: .pdf files only • Max 50MB per file
100% Client-Side Processing
Most online tools require you to send your documents to their servers. PanaPDF is different. We use "client-side" technology, which means your computer does all the work.
Your sensitive documents never leave your device. This makes it one of the most secure ways to merge PDFs.
Once the page loads, you can even turn off your internet and it will still work.
We don't see your data, we don't store your files, and we don't track your content.
Use our merge PDF free service as much as you want with no watermarks or hidden fees.
Combining your files shouldn't be complicated. Our tool makes it as easy as drag and drop.
Select PDFs by clicking Browse or dragging them into the box (max 50MB each).
Files are merged in the order you add them. Add up to 10 PDFs.
Hit the Merge button. Everything happens instantly in your browser.
Your new single PDF is ready immediately. Just click download!
How to merge PDF documents in 4 simple steps
Need to change page order first? Use our Organize PDF →
Whether you are a student organizing study notes or a professional combining legal contracts, PanaPDF is built for you.
Combine separate lecture notes, assignments, and research papers into one easy-to-read file.
Join invoices, reports, and presentations into a single, polished document for clients.
You don't need to be an expert. If you can click a mouse, you can merge PDFs online with us.
Great for:
Quick answers to common questions.
Yes. Unlike other tools, your files are processed client-side in your browser and never uploaded to any server.
Absolutely. You can merge PDFs on any device—iPhone, Android, or tablet—as long as you have a web browser.
Up to 10 files at a time, 100MB total size (max 50MB per file).
No. No registration, no email required, and no hidden fees.