All about plain text, rich text, RTFD, .doc, .docx, HTML, webarchive, WordML, ODT and Pages formats, and how much space they take.
RTF
Test version can now export PDF to Rich Text Format. For evaluation, please, to see if this would be worth adding to Textovert.
How can you use San Francisco, the system font for macOS and Apple’s other OSes? An example traced through from macOS internals to PDF and HTML.
Three new versions that are compatible with Writing Tools in Sequoia 15.1 beta, and should perform better in other recent versions of macOS.
The journey from single-document and basic styles, through the lightweight word processor brought to Mac OS X from NeXT.
Swift source code to accompany the article on SwiftUI on macOS: text, rich text, markdown, html and PDF views.
Trying to display formatted text in plain text, markdown, rich text, HTML, and PDF using SwiftUI and in AppKit/WebKit views within SwiftUI.
User content shouldn’t have its colours changed according to the appearance mode. So why do TextEdit and QuickLook thumbnails change custom text colours?
A new version of this Rich Text editor now remembers its appearance mode, and uses that as the default mode for documents too.
What’s the difference between plain text, marked-up plain text, and rich text? How can I tell them apart, and how do they work?
The Eclectic Light Company 