fn main() -> Result<(), Box<dyn std::error::Error>> {
let file = std::env::args().nth(1).ok_or_else(|| {
eprintln!(
"Usage: {} <pdf_file>",
std::env::args().next().unwrap_or_else(|| "cli-pdf-to-text".to_string())
);
std::process::exit(1);
})?;
println!("{}", cli_pdf_to_text::pdf_to_text(&file)?);
Ok(())
}