Qpdf [updated]: Download
To use it from any command prompt, add the bin folder path to your Windows Environment Variables .
macOS users have the easiest installation path thanks to Homebrew. download qpdf
Because it is a command-line tool, it can be easily integrated into scripts (Python, Bash, etc.) to process thousands of files at once. To use it from any command prompt, add
If using the zip file, extract it to a permanent folder like C:\qpdf . download qpdf
Most Linux distributions include QPDF in their official repositories, making "downloading" it as simple as a package manager command.