Merge PDF Online
Combine multiple PDF files into one document quickly and easily, processed locally in your browser.
Merge PDF
Select two or more PDF files and combine them into one PDF, in the order shown below.
PDF files only, up to 50 MB each.
Files are processed directly in your browser and are not uploaded to our server.
How It Works
- Select two or more PDF files.
- Reorder them if needed using the up arrow next to each file.
- Click Merge PDFs.
- Your combined PDF downloads automatically.
Your Privacy Matters
Files are processed in your browser and are not uploaded to our server for this tool.
Frequently Asked Questions
Is there a limit on how many PDFs I can merge?
There's no fixed limit on the number of files, though each individual PDF must be under 50 MB, and very large combined documents depend on your device's available memory.
Can I change the order of the files?
Yes — use the arrow button next to each file in the list to move it up, or remove it entirely before merging.
Are my files uploaded anywhere?
No. Merging happens entirely in your browser using the pdf-lib library — your files are never sent to our server.