create a link url object by url

Determines whether the specified Object is equal to the current Object.

Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.

finish the document, if the content don't empty, then add content to page

get font index by font style if not exists create it TODO: create new font for the unknow font style stander font list (type 1 fonts) Times-Roman Helvetica Courier Times-Bold Helvetica-Bold Courier-Bold Times-Italic Helvetica-Oblique Courier-Oblique Times-BoldItalic Helvetica-BoldOblique Courier-BoldOblique Symbol ZapfDingbats

Serves as a hash function for a particular type.

Gets the Type of the current instance.

Creates a shallow copy of the current Object.

create new page

Returns a String that represents the current Object.