When I try to save a report as a PDF, the only available paper sizes are EU (A4, etc.).
In North America (Canada, Mexico, USA), the standard business size is “letter size” which is 8.5 inches x 11 inches. According to Wikipedia, other countries using 8.5 x 11 include Costa Rica, Colombia, Venezuela, Chile, and the Philippines.
Your feature request is submitted, but for now we don’t have a clear estimate on when it will be implemented. We will keep you updated and let you know when the feature is ready.