On a published page, readers can zoom, move between draw.io pages or Excalidraw frames, and click the diagram to open it full screen. Full screen adds Fit, Print, Download SVG and Comments.
People who can edit the page see Edit diagram, which opens the editor without editing the page, and a gear for Viewer settings.
Viewer settings
| Setting | What it does |
|---|---|
| Simple viewer | Just the image: no toolbar and no full screen. |
| Lightbox | Clicking the diagram opens it full screen. |
| Center | Centres the diagram on the page. |
| High resolution preview | Sharper image in PDF and Word exports and thumbnails. |
| Toolbar | Top (on hover), Embed (always visible) or Hidden. |
| Links | Whether links in the diagram open in the same or a new window. |
| Zoom | 10% to 400%. Narrow pages scale it down to fit. |
| Page and layers | Which draw.io page or Excalidraw frame to show, and which layers. |
Note: Set these in the editor's Viewer settings panel (saved when you publish) or with the gear on the page. Once you save them with the gear, they take over from the editor's panel for that macro.