A more realistic path than the Club Card walkthrough: find a project close to what you need, download it, put your own logo and business name on it, then print. This walkthrough uses a generic Invoice project, but the same steps apply to anything in the Project Library.

1. Find one

Browse the Project Library for something close to what you need - a generic Invoice, for this walkthrough - and download its .yatate file.

The Project Library page showing the Invoice entry with its download link

2. Import it

Same as any other project: open the Projects list in the app and tap Import (the upload icon at the top), then pick the file you downloaded.

The Projects list's Import button, with a file picker open

3. Open Project Files

Instead of tapping the new project to fill it out, tap its edit icon to land on Project Files - the hub for every file that makes up the project.

The Project Files screen for the newly-imported Invoice project

4. Customize the header

Tap the overlay file that holds the header (commonly overlay.json) to open the Layout Editor:

The Layout Editor with the header image and text blocks selected

5. Fill it out

Back on the Projects list, open the project and fill in an invoice.

The Invoice fill-out form with sample values entered

6. Generate, then print or save

Tap Generate. Once it passes validation, you land on the PDF Preview, now showing your own branding - Print sends it straight to a printer, Save keeps a copy (PDF or PNG) on disk.

The PDF Preview screen for the customized invoice, with Print and Save controls visible

The customization you just did lives in the project's own files, not in the app - open Project Files any time to keep refining it, or see Authoring Tools for everything past the basics.