About
Just PDF Tools is built by Pepijn Immerzeel, a software developer with 20 years of experience building software.
Why this exists
Combining a few pages should not require an account or a subscription. These three tools are free, without a paid tier or watermarks. Processing on your device avoids running a document-upload service.
How we publish
Our guides are AI-assisted documentation based on the implementation and its automated tests. Publication under this website does not imply that Pepijn personally wrote or independently reviewed every sentence. We explain the technical choices and known limitations.
Scope and limitations
No independent security audit or professional PDF certification is claimed.