Terms
Last updated 9 October 2026. Contact: cagansoftwareengineering@outlook.com.
What this is
Stack PDF is a free tool that merges PDF files inside your browser. There is no account and no payment. Using the site means you accept these terms.
Your files are your responsibility
You keep every right in the documents you merge, and you confirm you are allowed to use them. Because the merge runs on your device, the result exists only on your device — keep your own copies of the originals. We cannot recover anything for you.
No warranty
The tool is provided as is. It may be unavailable, and a merge may fail or produce a file that does not meet your needs — check the result before you rely on it. To the extent the law allows, we are not liable for any loss arising from using the site, including lost or corrupted documents.
Acceptable use
Do not use the site to break the law or to infringe anyone's rights, and do not attempt to interfere with how it is served to other people.
Changes
These terms may change; the date above shows the current version. They are governed by the laws of the UK.