Version 0.5.2 of package Dired-Preview has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Dired-Preview describes itself as: ============================================ Automatically preview file at point in Dired ============================================ More at https://elpa.gnu.org/packages/dired-preview.html ## Summary: # dired-preview for Emacs This is a simple package to automatically preview in a side window the file at point in Dired buffers. Preview windows are closed when they are no longer relevant, while preview buffers are killed if they have not been used for other purposes beside previewing. The package provides several customisation options to control its behaviour. + Package name (GNU ELPA): `dired-preview` + Official manual: <https://protesilaos.com/emacs/dired-preview> + Git repositories: + GitHub: <https://github.com/protesilaos/dired-preview> + GitLab: <https://gitlab.com/protesilaos/dired-preview> + Backronym: Directories Invariably Render Everything Decently ... preview; dired ... PDFs Require Extra Viewing Instructions for Emacs to Work. ## Recent NEWS: [Not provided 🙁]