Password-protect current pdf (revisited) - link in comments
reddit / emacs

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xenodium · 2022-07-09 11:54



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xenodium · 2022-07-09 11:56

[https://xenodium.com/emacs-password-protect-current-pdf-
revisited](https://xenodium.com/emacs-password-protect-current-pdf-
revisited)

With `dwim-shell-command--on-marked-files`, it becomes pretty simple
to bring some of those command-line tools and make available with
quick access:

    (defun dwim-shell-command-pdf-password-protect ()
      "Speeds up gif(s)."
      (interactive)
      (dwim-shell-command--on-marked-files
       "Password protect pdf"
       (format "qpdf --verbose --encrypt '%s' '%s' 256 -- <<f>>
<<fne>>_enc.<<e>>"
               (read-passwd "user-password: ")
               (read-passwd "owner-password: "))
       :utils "qpdf"))

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pragmat1c1 · 2022-07-09 16:37

OT: How did you do this nice looking gif?

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xenodium · 2022-07-09 17:42

1. `⌘ (Command) ⇧ (Shift) 5` on macOS to launch built-in screen
capture.
2. Above generates a .mov video.
3. Convert to .gif from Emacs via `M-x dwim-shell-command-convert-to-
gif`, described at https://xenodium.com/emacs-dwim-shell-command