How to use it
- Add two or more PDFs
- Drag them into the right order
- Download one merged PDF
Questions people ask
Is there a limit on files?
No fixed limit. Very large sets depend on your device memory.
Will bookmarks and links survive?
Pages, text and images are kept exactly. Some interactive form fields may become plain content.
Is Merge PDF really free?
Yes. Every PDFtoOne tool is free with no login, no daily limit and no watermark. The site is supported by ads.
Is there a file size limit?
We set no limit. Files are processed by your own device, so the only limit is its memory. Computers handle very large files; phones handle most everyday files easily.
Does it work offline?
Yes. Once you have used a tool, it keeps working without internet. You can also install PDFtoOne as an app.