How to merge pdf files
- Add your files. Click the drop zone or drag two or more PDF files onto the page.
- Put them in order. Drag file cards into the order you want them to appear.
- Merge. Click 'Merge PDFs' — the combined file is built in your browser's memory.
- Download. Click 'Download' to save the result directly to your device.
Why do this locally instead of online?
Most 'merge PDF' sites work by uploading each file to a server, joining them there, and giving you a link to download the result. That's an extra hop your documents don't need to take. This tool joins files directly in your browser — nothing about your documents is ever transmitted, which matters if you're combining anything from financial statements to signed contracts.
Frequently asked questions
Is there a limit to how many PDFs I can merge?
No fixed limit is imposed by the tool itself. In practice, very large numbers of large files are limited only by your device's available memory.
Does merging PDFs online here upload my files anywhere?
No. The merge happens using a PDF library running inside your browser tab.
Will merging affect the quality of my PDFs?
No. Merging combines the original pages as-is; there's no quality loss from the merge step itself.
Can I merge password-protected PDFs?
You'll need to remove the password first using the Lock / unlock tool.