Configuration Panel

The ⚙ Config button (keyboard shortcut Ctrl+,) opens the project configuration panel on the right side of the window.

What you can configure

The configuration panel lets you adjust the settings for the current project:

• Paper size — the physical dimensions of your book pages (e.g. A4, square).
• Margins and bleed — how much white space to leave around photos and how much extra to add for the print edge.
• Photos per page — the target number of photos on each page when the layout is calculated automatically.
• Preview options — whether to show slot information on the page previews.

Applying changes

Changes you make in the configuration panel are applied right away — the page previews update on their own, with no separate save or apply step.

The one exception is the photos per page target: it only influences how the automatic layout distributes photos across pages, so existing pages keep their current arrangement until you rebuild them (press R or click Rebuild).

For a full list of all available configuration keys and their accepted values, see the Configuration reference.