1. Zoom Tool: Select this tool to manually zoom in on a specific spread location/item. Click to incrementally zoom in towards the clicked location, or click-and-drag to zoom in to the selected area.
2. Zoom Percentage: You can type a specific zoom-level into this field, or you can use the up-down buttons to the right to increase/decrease the zoom level.
3. Slider and Presets (via the drop-down menu beside the percentage): The slider can be dragged to set the zoom percentage, and the presets can be used to achieve a specific zoom-level with a click.

NOTE: When using the Zoom tool, you will need to re-select the Edit tool beside it in order to continue editing content after zooming.

1. Fit Width: Zoom so that the spread width is the same width as your editor window. The exact zoom level depends on how wide your browser window is.
2. Fit Content: Zoom so that the entire spread is displayed within your editor window. The exact zoom level depends on how large your browser window is.
3. 1:1: Zoom the spread to 100%.

NOTE: The minimum zoom level is 10%, and the maximum zoom level is 1000%.

1. The Zoom Tool cursor shows a plus symbol by default. In this mode, click on the document preview to zoom in.
2. Holding down the ALT key on your keyboard changes the Zoom Tool cursor to have a minus symbol. In this mode, click on the document preview to zoom out.

The area shown in the Editor is indicated on the spread's Thumbnail in the Dock. When you zoom in, this indicator gets smaller to indicate the portion of the spread shown in the preview.

This indicator can be dragged around on the thumbnail to choose which part of the spread to preview in the Editor.

NOTE: Moving to a different part of the document while zoomed in will re-render the now-visible portion of the document at the zoom resolution. If something looks fuzzy after zooming, you may need to wait a short while for the preview to update.