Macro for categorizing based on keyword present inside the email attachment which are pdf files

Hi, I have tried googling this question and have had no luck. I am new to Macro. This is what I need to do daily based on my tasks: I have a folder that I created using rules for a certain automated emails to go to. All those emails have pdf attached to them with different contents. These emails have the same subject and other specifications otherwise except for the content of those attachments. I would like a macro that categorizes those emails based on certain keyword(s) in the content of the pdf? Say for eg: If it has the word "Skinline" I would that email to be categorized as Blue color.