Convert pages 2, 3 and 4 of input.pdf to plain text and save them as output.txt

Convert PDF files to plain text format.
More information: <https://www.xpdfreader.com/pdftotext-man.html>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

pdftotext -f {{2}} -l {{4}} {{input.pdf}} {{output.txt}}

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