Without using third party dlls can we read barcode of pdf?

Question

I want to read the barcode values of the pdf files with out  using any third party dlls.

and i need the reading barcode speed also most accurate.

 

 

Please help me any one.

 

do you have any idea regarding this? I need the code only in c# without using paid dlls and trail version dlls.

 

Please don't answer me. if we have no idea. without using third-party DLLs.