Merge PDF files

Combine PDFs in the order you want with the easiest PDF merger available.

or drop PDFs here

Merge PDF files

Combine PDFs in the order you want with the easiest PDF merger available.

PDFs have been merged!

Your combined document is ready to download.

How to merge PDF files online

Quick, easy and 100% private. Follow these 3 simple steps to combine documents.

1
Select your PDF files
Click 'Select PDF files' or drag and drop your files directly into the dropzone above.
2
Arrange & reorder pages
Drag and drop the document cards to reorder them, or rotate individual pages with one click.
3
Merge and download
Click 'Merge PDF' and your new merged document will be generated locally in seconds.
100% Client-Side Privacy Guarantee: Your files never leave your computer or browser. Unlike other online tools, 400tools processes all PDF data locally in your browser using WebAssembly.

Merging PDF files...

Please wait while we combine your documents.