How the merge pdf files works
Last updated 10 November 2026
Joining PDFs is a common job: a signed form plus an ID copy, several scanned pages, or reports into one pack. This tool does it without uploading anything.
How it works
- Choose the PDF files. Use Up and Down to set the order.
- Press Merge. The pages are copied into one new document in that order.
- Download the result.
How to use the tool
Choose two or more PDF files, or drag them onto the box. They appear in a list in the order you chose them. Use the Up and Down buttons to change the order, then press Merge. The result is a single file called merged.pdf.
After the merge, the tool shows how many files were joined and how many pages the result has. If the page count is not what you expected, check the list and merge again.
What the tool does to the pages
Pages are copied one by one from each file into a new document, in the order of the list. The file you download is a new document. The files you chose are not changed.
What to check before you send it
- The order of the pages. Open the result and scroll through it.
- The size of the file. Many scanned pages make a large file, and some email systems reject big attachments.
- Anything personal. A merged pack may hold ID copies or bank details, so check who will receive it.
- Form fields and bookmarks. These may not carry over from the originals.
Common problems
If a file will not merge, the tool shows a message. A file that is password-protected has to have its password removed first. A file that cannot be read may be damaged. Try opening it in a PDF viewer, saving a fresh copy and adding that instead.
The tool also has limits on the number of files and their total size, to keep your browser working. The page shows a message if you go over them.
What this does not cover
The tool only joins files. It does not split, rotate, compress or edit them. For those jobs, see the other PDF tools on this site.
Common uses
- Putting a signed form and an ID copy into one file for an application.
- Joining several scanned pages into a single document.
- Combining separate reports or statements into one pack.
- Adding a cover page to a longer document.
Related questions
Are my files uploaded? No. They are read and joined on your own device.
Can I merge more than two files? Yes. Add as many as the tool allows and set the order with the Up and Down buttons.
Things to watch
- Check the order before you merge. Bookmarks and form fields in the originals may not carry over.
- Large scans make large files. Use a smaller size if you need to email the result.
Like every tool on MoneyMzansi, this one runs entirely in your browser. There is no account, no upload and no sign-up. Your files are read and processed on your own device, and nothing is kept once you close the page.