Rust 读取PDF

需要用到这个库

pdf-extract = "0.6.4"

fn main() {
    let file = "hello.pdf";
    let p = pdf_extract::extract_text(file);
    match p {
        Ok(s) => {
            println!("{}", s);
        },
        Err(err) => {
            println!("err: {:?}", err);
        },
    }
}