The goal of Invoice was to make a mac friendly application with all required features for mac users. This software uses the features of Mac OS X and is not a cross plattform application, which can not make use of OS specific features.Style your own background with your favorite application like Pages, etc. and save it as PDF. Load the PDF as background for your invoice and add \"autofields\" (invoice nr., name, address, etc.) to the layout.Invoice is a must have program for freelancers and anyone who wants to keep track about invested times.Don\'t maintain your customers double. Get your contacts simply from your address book. You have also the freedom to modify your contacts without side effects in your address book. Synchronize modifications with your address book only if your wish.Control paid and open invoicesA simple flag can track your open invoices. Find not paid invoices and don\'t loose the overview. Manage your own article catalog: a simple article catalog can store your articles, which you can use to build your invoices later. With a simple flag articles are also \"supply of services\" which you can use to build invoices from your tasks. Set your own format and counter for your invoice nr. Define your own format for your invoice number. Place a counter into the format.Here are some key features of \"Invoice\":