edit
text editors
Ed is the standard text editor.
sc
A TUI spreadsheet program.
gemgen
A Markdown to Gemtext generator.
pandoc
A universal document converter.
pdftk
A handy tool for manipulating PDFs.
pdfcrop
Specialized tool for cropping PDFs without distortions. Comes with texlive.
imagemagick
Powerful tools for converting image formats.
ghostscript
A full language for PDF/Document manipulation. If the above tools don't work you can always try ghostscript.
vale
Syntax-aware linter for prose.
jq
A command-line json tool.
scanimage
A command-line image / document scanner.
figlet
Create that silly ascii art bubble text.
view
fzf
General-purpose command-line fuzzy finder.
grep
Search files with regular expressions.
ripgrep
A more modern and much faster version of grep.
zathura
Fast and powerful document viewer.
less
Opposite of more.
wiki.vim
Personal wiki tool for vim.
memo
A little notes program that integrates nicely with other unix tools.