When uploading a MacOS application for notarization, you may get the error
You must first sign the relevant contracts online. (1048)
Signing into your Apple Developer account and going to App Store Connect, you will see a notification that the license agreement was updated and you need to sign into your account on the Apple Developer website to agree. Clicking on the account link goes back to https://developer.apple.com and there is no agreement to sign. Instead, you need to stay on the App Store Connect site, and click the Agreements, Tax and Banking item. Here is where you can agree to any updated agreements. Once there are no pending agreements, you can upload the notarized application without errors.
Sparkbooth 6 now includes a mirror booth mode that plays video animations for your mirror photo booths. There is also a new drawing screen to allow your guests to sign, drawing, and apply stickers to their photos and more
Sparkbooth Layout Editor is a visual editor for creating your own layouts to use in Sparkbooth. You can create layouts for a variety of paper sizes, photos, and customize the background and overlay images.
Sparkbooth Photo Kiosk allows you to setup a separate station for your guests to browse, print, and upload photos to Facebook or Twitter taken by your photo booth. Just network your photo booth and kiosk computers together, and point Sparkbooth Photo Kiosk at the shared folder where your photo booth saves photos.