Document analyzing

Hello,

We are a document service company and recieve large print jobs that consist of mostly pdf's. Sometimes these documents have several page sizes in one pdf and are a mixture of black and white and color. Some clients request a quote for the job before and this can be a long time consuming process.

Is there a batch function or adobe app that can analyze PDF documents for page size and give you a list of all page sizes found ? Also is there a function that can detect visible color and not coded color, as in you can scan a black and white document in color, it will still look black and white but when printed on a color printer will usecolor tonner and not black and white tonner. 

Thanks.