PDF guides and how-tos
Practical answers to the document problems people actually search for — written by the people who built the tools.
How to Delete Pages from a PDF (Free, Without Acrobat)
Remove blank scans, duplicate covers and pages you should not share. Here is the reliable way on Windows, Mac, iPhone and Android, and what to check before you send the file.
OrganiseHow to Rotate a PDF on iPhone, Android and Windows
A sideways scan is easy to fix, but every platform hides the option somewhere else. The shortest route on iPhone, Android, Windows and Mac - and how to make the rotation stick.
How-toHow to Merge PDFs on iPhone, Android and at Work
The practical ways to combine PDFs on mobile and on machines where you cannot install anything — including the browser route that works everywhere with no account.
Need the tool, not the theory?
Every guide links to a free browser tool that finishes the job without uploading your file.