Merge PDF Files
Combine multiple PDF files into a single document. Drag to reorder, then merge!
Drag & drop PDF files here
or
Select multiple PDF files to merge
🔒 Your files are processed locally and never uploaded to any server.
100% Private
Your PDFs never leave your browser. Everything is processed locally.
Fast & Free
No file size limits. No registration required. Completely free to use.
Easy Reordering
Drag and reorder your PDFs before merging to get the exact order you want.
How to Merge PDF Files
Upload your PDF files
Reorder files if needed
Click "Merge PDFs"
Download your merged PDF
Frequently Asked Questions
How do I merge PDF files?
Simply drag and drop your PDF files onto the page or click "Browse Files" to select them. Arrange them in the desired order using the arrow buttons, then click "Merge PDFs" to combine them.
Is there a limit on how many PDFs I can merge?
There's no hard limit on the number of files. However, merging very large files may slow down your browser. For best performance, we recommend keeping the total size under 100MB.
Are my PDF files secure?
Yes! All processing happens directly in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.
Can I change the order of pages?
You can reorder entire PDF files before merging using the up/down arrows. Each PDF will be added in sequence. For page-level reordering, try our Split PDF tool first.
What if my PDF is password protected?
Password-protected PDFs may fail to load. Please remove the password protection first using our Unlock PDF tool, then try merging again.
Does merging affect the quality of my PDFs?
No, the quality remains exactly the same. We copy pages directly without any recompression or quality loss.