Hi Chris,
Your 'English post' is quite easy to read and understand. Whenever you have doubts regarding English speakers understanding your post (in English), you might consider writing the post in your 'home' language, stating the language used if there's any likelihood that it won't be recognized, and including a copy of the result of pasting a copy of the post into Google Translate, or other Translation site on the 'net.
Regarding your question:
Adding information from a Numbers doc to an invoice document in Pages cannot be done directly. Direct communication between Numbers and Pages (or Numbers and Keynote, or Pages and Keynote or between two documents created with the same iWork application) has not been supported in any versions I've had use of, and, judging by a brief search of the online user guides, is not supported in the current versions.
It is likely possible to recreate, in Numbers, the invoice you have designed in Pages. Some things to be aware of are that:
- 'pages' do not exist in Numbers until you are 'preparing to print', or are actually printing.
- 'Header rows' can be set to repeat on each new page when printing.
- Calculations (such as totals and taxes due) can be done in footer rows, which remain at the bottom of the table as new rows are added.
- Numbers will create new pages as necessary as the invoice grows longer, or as it grows wider. Printable invoices will work best is the main table's width is kept small enough to fit within the width of the paper they are to be printed on, allowing the document to grow vertically, but preventing it from requiring more than a single (paper) page width.
Regards,
Barry