[1] mentioned in https://www.wpkube.com/make-your-website-printer-friendly-wordpress/ which compares 5 choices
— print-selection is a workaround
— to see any change, you must disable caching !
— to remove prev/next links.. use AdditionalCSS
https://wordpress.org/support/topic/remove-previous-and-next-post-links-at-bottom-of-posts-theme-synchronization/
— to remove footer.. use RemoveFooterCredit plugin
— theme customization lets you remove the archives, categories etc
comment box can be removed , via ‘settings-}Discussion’.
I guess the trick is “Automatically close comments on posts older than [..1..] days”
This is the simplest solution, rather than the plugins !
— to include date in template file … follow https://www.wpbeginner.com/wp-tutorials/how-to-display-todays-date-in-wordpress/
ThemeFileEditor -> content-single.php (address like https://btv-gz.dreamhosters.com/wp-admin/theme-editor.php?file=content-single.php&theme=cols):
<?php cols_posted_on(); ?> rendered_on [ <?php echo date('D, j M Y ] H:i e'); ?>