Function pdfshrink::pdf_to_cmp_pdf

pub fn pdf_to_cmp_pdf<P>(inpath: P) -> Option<PathBuf> where
    P: AsRef<Path>, 

Replaces a .pdf extension with .cmp.pdf.

If there is no extension, or the extension is not .pdf, returns None.

Examples

let before = "some dir/subdir/name.pdf";
let after = "some dir/subdir/name.cmp.pdf";
assert_eq!(pdf_to_cmp_pdf(before), Some(after.into()));