remove some println! to be more CLI / TUI friendly

[qkzk]

I'm using pdf-extract in a tui file manager, where I preview the files on demand.

Sometimes, when the pdf is corrupted, there's some println!("Unicode mismatch"); on the screen which I can't prevent.

Could those prints be replaced with logs instead like it's proposed here

I can count 5 other prints in lib.rs.

[jrmuizel]

Do you have an example PDF that shows this?

[mihaimaganu17]

Hello, I get the same output printed. My case is Intel's SDM manual, volume 2
https://www.intel.com/content/www/us/en/developer/articles/technical/intel-sdm.html