How to Change your Default Zoom from your Account Settings
It is possible to change your default opening and navigational zoom level for your generated bundle from your account settings on Bundledocs.
1. Click your Email at the top right of Bundledocs.

2. Select
Account Settings from the dropdown.

3. Click Zoom Level and choose which option suits your requirements from the dropdown.

4. Scroll down and press Update.

This will ensure all new bundles will contain the chosen zoom level.