Automatic Link to file

Question

I have a PDF Folder that contains pdf files named : (10001S_1956.12.13_14314_mar.pdf , etc....)
I need to create an application that reads word and converts it to HTML (already got this it is in the attachement), and when reading the word file if it happens that it reads "10001S_1956.12.13_14314_mar" it sould search if is available in the pdf folder is yes a link should be created automatically and if not text will staystatic
Can you help me with this please ?

my email is : [email protected]