Join several PDF files into one document. Your files stay on your device.
Choose two or more PDF files, put them in the order you want with the arrows, and press Merge. The merged file downloads to your device.
The merging happens in your browser, so your files are not uploaded to any server.
Files that are password protected cannot be merged. Remove the password first.
No. Everything runs in your browser and the files stay on your device.
There is no fixed limit, but very large files can be slow or fail on phones with little memory.
The file may be password protected or damaged. Try opening it on your device first.