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Rewrite code to sign pdf LTV enabled using itextsharp and C#

I need someone to write code (in existing method) to sign pdf documents using itextsharp .net library. The code should be written in C#.

public byte[] Sign(byte[] document, X509Certificate2 certificate, ITSAClient tsaClient)

{

//signing code here

return signed_document;

}

method receives pdf document as byte array that should be signed, certificate to sign with and TSA client and it returns signed document as byte array or null if there was error. Now it returns signed pdf document but it isnt LTV enabled.

Signed document must be LTV enabled, signed documents are used for archiving.

I've attached c# Visual studio test solution. You need to modify method Sign in [login to view URL] file without adding new references or changing any other part except [login to view URL] file (you can add helper Methods if needeed).

When completed i will test method with real world document and certificate and with Adobe reader.

技能: .NET, C# 编程, PDF, 软件构架

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关于此雇主:
( 0个评论 ) Sisak, Croatia

项目ID: #17761744

授予:

KenJanka

Hello Sir/Madam, accept warm greetings from Ken J. I can edit that code for you in at most a day. I have 3 years of experience in C# and .net. Lets talk more over chat. Best regards Ken J.

€23 EUR 在1天内
(0条评论)
0.0

3 威客就此工作平均出价 €25

waseemsaleemg

Surely, I've given expertise. I'm Microsoft Certified Professional, Senior Software Engineer and Microsoft Certified Trainer with over five Years of Experience. Skills: ASP.NET Core (MVC 6), MVC 5, WCF, N-Tier Archi 更多

€23EUR 在1天里
(3条评论)
3.5
reehan79

I have over 10 years of experience in programming. I have made several Web and Desktop Applications. I have used iTextSharp library in C# before, I used it to geenrtae PDF from HTML. I have complete command over C#, AS 更多

€30 EUR 在3天内
(1条评论)
2.4