Comment by leobg

https://github.com/abo-abo/org-download is handy for images (org-mode shows images just fine).

https://addons.mozilla.org/firefox/addon/copy-as-org-mode/ lets you copy formatted text from web pages to org-mode format

pdf's – do you mean downloading them? I mean, emacs can view pdf's, your computer can store them as files, making a clickable link to ./sicp.pdf from org-mode is just [[./sicp.pdf]] (or, while you're reading the pdf or browsing it in dired, hit your key for org-store-link and then in org-mode hit the key for org-insert-link).

OP here... I do all of these from Emacs orgmode, and more.

Ref. a presentation I did last year: https://github.com/adityaathalye/slideware/

- The org plaintext: `clojure-web-app-workshop-functional-conf-2025.org` (see the raw source for formatting directives and structure.)

- Live coding presentation delivered straight from my org source: https://www.youtube.com/watch?v=YEHVEId-utY

- The RevealJS handout presentation compiled directly from the same source (self-hosted, with images, text snippets, quotes, code snippets): https://www.evalapply.org/posts/clojure-web-app-from-scratch...

- The extended blog post for the same (I start off all presentations as longform thinking in org plaintext): https://www.evalapply.org/posts/clojure-web-app-from-scratch...

- I can also do LaTeX PDF and raw tex, for undergrad student "professor points" :D (See examples in the github repo --- the "n Ways to FizzBuzz in Clojure" presentation. Which also was a live coding demo: https://www.youtube.com/watch?v=BTouODWov-A ... "demo live, or die trying", I say :D)

And... I mentioned my site... This is the build step, no Emacs needed :)

  __shite_templating_compile_source_to_html() {
      # If content has front matter metadata, it is presumed to be in a format
      # that the content compiler can safely process and elide or ignore.
      local file_type=${1:?"Fail. We expect file type of content like html, org, md etc."}
  
      case ${file_type} in
          html )
              cat -
              ;;
          md )
              pandoc -f markdown -t html
              ;;
          org )
              pandoc -f org -t html
              ;;
      esac
  }

I've never used anything but plain text in org TBH. I know there are tools out there that make it possible/easy to work with certain binary files, but I've just never had such a use case. At most I'll put a link to a given file that opens it in a native viewer.

you can show images in org. https://orgmode.org/manual/Images.html

with webpages I just store the link, but maybe you want to download them? I've used singlefile extension to download and store copies and link from org.

with pdf I just store evince /path.pdf & and triple click to select and middle click in a terminal.