When exporting a Pixellu SmartAlbums project for proofing, all images on the exported spreads will be numbered by default so that clients can reference them during the proofing stage (example below). After a project is exported for proofing, all images being used for the design in SmartAlbums will automatically be numbered as well. This allows you to reference any changes requested by the client and easily make the needed adjustments within the application. 

In the case that the proofing numbers are not automatically enabled within your project, simply go the top menu and select View > Show Proofing Image Numbers (example below). 

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