Table data extraction from pdf

I have multiple pdf files which contains multiple invoices, i want to fetch “Inv. No” from Invoice Details accordingly and also i need to extract the data from table called as DBK DETAILS. According to number of invoices, the DBK DETAILS table contains multiple rows and Based on “Inv No” column i want to perform addition of same invoice number of “DBK Amount” column and display in a message box.
i have attached one of the sample pdf file.
so can anyone help me ?
test2-converted.pdf (50.2 KB)

@Mahesh5491 are there always 3 pages and DBK details always on the last page ?

@ shibani thank you for your replay. The pages varies as per number of invoice details and DBK details table also varies.