The same need to be use when assigning a name to it. a pdf document can be embeded in a web page using plain html files or html generated by php or any other server side language. learn how to display pdf file in php in html web page with the help of filesize( ) and readfile( ) built in php functions. pdf" ) ; pdf' ) ; or: ( note the show escaped double- quotes). here is the sample code: the < iframe> tag can make a resource show pdf in php that is external to a page be displayed as if it is part of the page. header( " content- type: application/ pdf" ) ; header( " content- disposition: inline; filename= filename. using the < iframe> tag. here are two ways. in this article, we discuss how to embed pdf in a website using html in 3 known ways.