Skip to main content
Version: 2026.09

Opening & Multi-Document

There are several ways to open documents, and you can keep more than one open at a time.

Opening documents​

On desktop, you can:

  • Drag and drop a file anywhere onto the app window to open it in a new tab. Dropping several files at once opens each in its own tab, and a highlight overlay confirms the drop will be accepted.
  • Use Open With from Finder/Explorer, double-click an associated file, or pass a path on the command line.

PDFs, images, and eBook formats are each routed to the matching viewer. Opening a file that's already open just switches to its existing tab.

Drag-and-drop open overlay on desktopDesktop

Multiple documents​

When more than one file is open, a Files switcher appears:

  • Mobile: a Files button (with a badge showing the count) opens a drawer to switch between or close open documents.
  • Desktop: documents appear as tabs; keyboard shortcuts jump between them (Ctrl/Cmd + Tab, Ctrl/Cmd + 1–9).
Files switcher tabs on desktopDesktop
Files drawer on mobileMobile