devexpress13学习系列（三）PDFViewer（3）

PdfDocumentProperties Class

该类，用来显示载入的pdf文件的属性，包括：

	Name	Description
	Application	Indicates the application that generated the document.
	Author	Indicates a document's author.
	CreationDate	Specifies the date of the PDF file creation.
	FileLocation	Indicates the physical location of a document.
	FileName	Indicates a document's file name.
	FilePath	Indicates a path to the folder that contains the document file.
	FileSize	Indicates the physical size of the document file.
	Keywords	Indicates the keywords that describe the primary topics covered in a document.
	ModificationDate	Specifies the date of the PDF file's last modification.
	Producer	Indicates an application that produces a PDF.
	Subject	Indicates the primary subject of a document.
	Title	Indicates the title of a document.
	Version	Specifies the PDF version of a document.