Free Online PDF Merge
Merge multiple PDF files into one document online for free. Drag and drop to reorder pages. 100% browser-based — your files stay private.
Drop your PDF files here
Add multiple PDFs to merge them into one
Max file size: 50 MB
How to Use
STEP 1
Upload File
Drag and drop or click to select your file
STEP 2
Process
Adjust settings and click process
STEP 3
Download
Download your processed file instantly
Why BrowserTool?
No Upload Required
Your files are processed 100% in your browser. Nothing is ever uploaded to any server.
100% Free
All tools are completely free to use with no registration, limits, or watermarks.
Lightning Fast
Processing happens locally on your device, so there's no waiting for server responses.
Frequently Asked Questions
How many PDFs can I merge?
You can merge as many PDFs as your browser's memory allows. Typically, merging 10-20 standard PDFs works smoothly on most devices.
Can I reorder the PDFs before merging?
Yes! Simply drag and drop the files in the list to rearrange them in your desired order before merging.
Are my PDFs uploaded to a server?
No. All merging happens 100% in your browser using the pdf-lib library. Your files never leave your device.
Will the merged PDF maintain formatting?
Yes, the original formatting, images, and text of each PDF are preserved in the merged output.
Is there a file size limit?
There's no strict limit, but very large PDFs (100MB+) may cause your browser to slow down. For best results, keep total file size under 50MB.