Organise PDF
Merge PDF files
Combine several PDFs into one file in the order you choose them.
Choose your file
Choose 2–20 PDF files, up to 120 MB in total.
Your selected PDFs are combined inside this browser tab. Rebuild does not upload them.
How to use it
Three clear steps
- 1
Choose two or more PDF files.
- 2
Use the arrow controls to put them in the right order.
- 3
Select Merge PDFs, then download the combined document.
Options and output
What this tool does
- The first file becomes the first set of pages in the result.
- Bookmarks and advanced document-level metadata may not carry across.
File privacy
Processed on your device
Your selected PDFs are combined inside this browser tab. Rebuild does not upload them.
Troubleshooting
If the file will not process
- A password-protected PDF must be unlocked before it can be merged.
- Very large PDFs can exceed the memory available to a mobile browser.
Useful answers
Common questions
Does merging change the page quality?
No. Pages are copied into a new PDF without being rendered as images.
Can I change the file order?
Yes. Move each selected file up or down before you merge.