Programmatically change text inside searchable PDF file

Job ID: 34709789

Budget: $30 – $250 USD

Given 3 searchable pdf files: a purchase order, a proforma invoice and an invoice, need a vb.net 2015 app that can convert the unit prices, amounts, subtotal, tax and total from USD$ to Euro€ format, including the exchange rate as parameter. For example: $12,265.20 make it 12.265,20*rate €

Use itextsharp.dll and RegEx; proforma invoice file provided in USD, the program would convert all currency text to Euros and save the converted file.
Related categories: PDF VB.NET