C# web app bug fixes - PSA

Need a number of changes and bug fixes applied to an existing C#, ASP.NET web application. The module in the application deals with assessments that are captured via a web browser, stored into a SQL Server database, formatted into PDFs and then digitally signed. The web application used iTextSharp to produce the PDF and the digital signature. Please see the attached document for the list of updates that are required and respond with time estimate, cost, and your availability. What are your questions?