FluxMarkdown keyboard shortcuts: QuickLook and App modes

FluxMarkdown provides two distinct operating modes — QuickLook (triggered by pressing Space in Finder) and the main App (opened by double-clicking a Markdown file). Each mode exposes a different set of keyboard shortcuts. The tables below list every shortcut available in each mode.

QuickLook mode
App mode

QuickLook runs inside a system-managed window controlled by macOS Finder. Most keyboard events are intercepted by the system before they reach the FluxMarkdown extension, so only a small set of shortcuts is available.

Shortcut	Action
`Space`	Open (or close) the QuickLook preview for the selected file in Finder
`Cmd` + `+` or `Cmd` + `=`	Zoom in — increases page zoom by 10% (max 300%)
`Cmd` + `-`	Zoom out — decreases page zoom by 10% (min 50%)
`Cmd` + `0`	Reset zoom to 100%
`Cmd` + `R`	Reload the file from disk — picks up external edits immediately
`Cmd` + `Shift` + `M`	Toggle between rendered preview and raw Markdown source view
`?`	Open the in-preview help panel

You can also zoom using pinch gestures on a trackpad (two-finger pinch/spread performs smooth visual magnification from 0.25× to 5×), and reset zoom with a two-finger double-tap.

macOS intercepts most keyboard events in QuickLook. Shortcuts that rely on Cmd+Shift, Cmd+F, and other modifier combinations used by the system or Finder may not reach FluxMarkdown. If a shortcut listed here does not respond, switch to App mode for full keyboard access.

When you open a Markdown file directly in the FluxMarkdown app (by double-clicking it in Finder, or by using File → Open), you have access to the full shortcut set. The app receives all keyboard events directly.

Shortcut	Action
`Cmd` + `,`	Open Settings
`Cmd` + `F`	Open the in-document search bar
`Cmd` + `R`	Reload the file from disk
`Cmd` + `+` or `Cmd` + `=`	Zoom in (max 300%)
`Cmd` + `-`	Zoom out (min 50%)
`Cmd` + `0`	Reset zoom to 100%
`Cmd` + `Shift` + `P`	Export as PDF — opens a save panel with font-size control
`Cmd` + `Shift` + `E`	Export as HTML — exports a self-contained HTML file
`Cmd` + `Shift` + `M`	Toggle between rendered preview and raw source view
`Alt` + `Cmd` + `E`	Open in external editor — opens the current file in your default plain-text editor via `open -t`
`?`	Open the help panel — shows all shortcuts with mode badges
`Cmd` (hold 2 s)	Open the help panel automatically after holding Cmd for two seconds

Zoom also works with Cmd + scroll on a trackpad or mouse (range: 50%–300%), and with pinch gestures on a trackpad.

Help panel

The help panel gives you a quick-reference card for all shortcuts without leaving the preview window. Three ways to open it:

Press ? anywhere in the preview.
Hold Cmd for two seconds without pressing any other key.
Click the ? button in the top-right corner of the window.

The panel distinguishes between shortcuts available only in App mode (marked with a yellow App badge) and those that work in both modes. In QuickLook, a yellow banner at the top of the panel warns that most keyboard events are intercepted by the system.

The Cmd-hold trigger is smart: it cancels if you press any non-modifier key (such as Tab, Space, or a letter) while holding Cmd. Only a pure Cmd hold — with no other keys pressed — opens the panel. You can disable the Cmd-hold behavior from within the help panel itself using the checkbox at the bottom.

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FluxMarkdown keyboard shortcuts: QuickLook and App modes

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