I got the answer for what I am searching,IceBrowser itself will convert local html tp pdf.Generally we know that IceBrowser will convert an url to pdf directly.
Using Wget we can convert an url(webpage) to html page(that web page becomes local html now).Using icebrowser we can convert local html page to pdf.
If you open any html file in any browser in the top it will be shown like
Eg: If you have an html file(say a.html) in C:\a.html
Open any browser got to menu bar on the top file-> open -> <give the path where that a.html page is there>
Now in the browser we get like (I have used oprera,you can use firefox also in the same way) "file://localhost/C:/a.html".It uses file protocol
Pass this "file://localhost/C:/a.html" in the icebrowser API,you can able to convert local html file to pdf directly.