How to merge PDF files
1
Add your files
Drop in two or more PDFs, or click to browse. Add as many as you need.
2
Put them in order
Drag the handle on each file to arrange the sequence of the final document.
3
Merge & download
Press Merge PDFs and save your single combined file. Done in seconds.
Questions
Are my files uploaded to a server?
No. PDF merging runs entirely in your browser using local processing, so your documents never leave your device.
Is there a limit on file size or count?
You can merge as many files as you like. Very large files (above ~25 MB) are handled with a brief on-device optimization step.
Will the formatting stay the same?
Yes. Pages are copied exactly as they are — fonts, images and layout are preserved.
Does it cost anything?
No. Every tool on Simple Tools is free to use.