Specify the initial zoom at page width or full page

Portable Document Format (PDF) file viewer.
More information: <https://www.xpdfreader.com/xpdf-man.html>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

xpdf -z {{page|width}} {{path/to/file.pdf}}

click the source code to copy install xpdf on any operating system with command-not-found.com