+ PDFOptions x; //implicit hyperref settings
+
+ return author == x.author
+ && title == x.title
+ && subject == x.subject
+ && keywords == x.keywords
+ && pagemode == x.pagemode
+ && quoted_options == x.quoted_options
+ && bookmarks == x.bookmarks
+ && bookmarksnumbered == x.bookmarksnumbered
+ && bookmarksopen == x.bookmarksopen
+ && bookmarksopenlevel == x.bookmarksopenlevel
+ && breaklinks == x.breaklinks
+ && pdfborder == x.pdfborder
+ && colorlinks == x.colorlinks
+ && backref == x.backref
+ && pagebackref == x.pagebackref
+ && pdfusetitle == x.pdfusetitle;