Parsing page numbers in documents in a container field?

[Steve E.]

I want to be able to create indexes of words or phrases in documents in container fields. The documents would typically be  PDF or Word files, but there could be other formats (excel? RTF?).

 

Ideally, a (1) search on a word or phrase would (2) highlight the word or phrase, (3) parse or otherwise detect and capture that particular page number in the document, and (4) construct an index of this data.

 

I can see (at least conceptually) how to do 1, 2, and 4, but how can I determine page numbers in the document in the container?

 

Ideas, hints, approaches?

[comment]

I can see (at least conceptually) how to do 1, 2, and 4,

 

You can? Please share!