I Want Software for billing and estimation purpose. in that software i want to make 3 kind of bill and print out should be done in half page(Half of A4). Along With that i want to maintain ledger(General Ledger). In Billing Module Total Debit of Customer And Total Credit of Customer is must. i also want to add Financial Year.
Quotation Detailed should be stored and printed. Reports of Quotation and Bill should be generated (Weekly,Monthly).
My Data Should be protected in efficient manner. System Should be Fast and Reliable because data would be more. I want two system of Same requirement.