Create Document From Specific PDF Sections

Hi Everyone,

I am trying to create a single document from a pdf file that has different rows for each of the repetead sections in the single pdf file. 

Example: I have a pdf document that has a lot of text however in the document there is one repeated section of comments that I would like to collect for each ID associated with the comments. I have used the process documents from files and used extract information operator with a start and end expression to capture the comments in between. it works for the first section that the start and finish expressions are found but doesnt captures the rest of the sections.

Please let me know if I need to explain this any further. 

Thank you

Blah Blah Blah

Blah Blah Blah

ROWID

Start Section

Comments i need

End Section

Blah Blah Blah

Blah Blah Blah

ROWID

Start section

Comments i need

End Section

Final Example Set wotuld be in this form

ROWID - Comments

ROWID - Comments

ROWID - Comment

.

.

.