Export a single page or blog to a PDF. A page hierarchy can be exported, one page at a time, provided the file specified is a directory. Use @default or . for the file name portion of the file parameter to have it replaced with the page title and pdf extension. Use '--options addAttachment' to add the export as an attachment to the same page by default or to a page identified by newSpace and newTitle parameters. If @default is specified for file with the attachment option, no local file will be written. The attachment name is either given by the file parameter if provided or the title of the page.