Read, extract (text/tables), create, merge/split/rotate, watermark, encrypt,
$npx -y skills add hkuds/deeptutor --skill pdfInstalls into the current project.
Run `npx skills use "https://github.com/hkuds/deeptutor" --skill "hkuds/deeptutor/pdf"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/hkuds/deeptutor" that are relevant to the current task. Run `npx skills add "https://github.com/hkuds/deeptutor"` and select the relevant skills, then follow their instructions.