Merge PDF files
Combine several PDF files into one document in any order you like – securely in your browser, without uploading anything.
or drop them here
Your files never leave your device
Drag the files into the order you want.
How it works
- Select your PDF files or drop them here.
- Set the order by dragging or with the arrow buttons.
- Click “Merge PDF” and download your combined file.
Frequently asked questions
How many PDFs can I merge?
As many as you like. The only limit is your device’s memory – even dozens of files with hundreds of pages usually work fine.
Are links and forms kept?
Page content, text and images stay exactly the same. Bookmarks and interactive form fields may be lost when merging.
Are my files uploaded?
No. HowDoIPDF runs entirely in your browser. Your files are not sent to any server and stay on your device – ideal for confidential documents too.
Is “Merge PDF” free?
Yes, completely free – no sign-up, no watermark and no file size limit.
Does it work on my phone?
Yes. The tool works in any modern browser on iPhone, iPad, Android, Windows, Mac and Linux – no app needed.
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