Merge PDF
Combine multiple PDF files into one, in the order you choose. Nothing is uploaded — the merge happens on your device.
Frequently asked questions
- Are my PDF files uploaded anywhere?
- No. The merge happens entirely in your browser using JavaScript — your files are never sent to a server. This also means there's no file-size limit imposed by an upload, and it works even with a slow connection.
- Can I change the order of the pages?
- Yes. Drag any file up or down in the list before merging — the final document follows the order shown, top to bottom, with all pages from each file kept together.
- Does this work with password-protected PDFs?
- Not currently. If a file is encrypted, it will show an error when added. Remove the password using your PDF reader first, then try again.
- Is there a limit on file size or number of files?
- No server-imposed limit — since everything runs on your device, the practical limit is your browser's available memory. Very large batches (dozens of large PDFs) may be slower on low-memory devices.