🚀 go-pugleaf

Ok I'm making progress I think :)

The following code should encrypt the pdf file hopefully, however once I execute this code and then open the PDF file, it opens fine:

AFormApp formApp;
CAcroAVDoc doc;
Fields fields;
string nVersion;
string menuItem = string.Empty;
string certPwd = string.Empty;
string jsCode = string.Empty;

//open pdf
doc = (CAcroAVDoc)Interaction.CreateObject("AcroExch.AVDoc", "");
doc.Open(fileName, "Test PDF");

//acrobat form object
formApp = (AFormApp)Interaction.CreateObject("AFormAut.App", "");

//access some object property in objects inside AcroForm.
fields = (Fields)formApp.Fields;

certPwd = "test";
menuItem = "ADBESDK:AddSignature";
jsCode = "SetUserPassword(" + "'" + certPwd + "'); SetUserDigitalIDPath(" + "'" + certPath + "');" + "app.execMenuItem(" + "'" + menuItem + "');";

fields.ExecuteThisJavascript(jsCode);
doc.Close(0);

I created this code based on a sample from the SDK project called FillFormCS.

There's a section in there that contains the following comment:

/******************************************************
  VB code in an Acrobat IAC program
  to sign a PDF quietly ( no Acrobat running on screen ),
  using the JS methods in this file
* *****************************************************

When signing a PDF file is referred to, is in the context of encrypting it with a certificate? Or is it referring to a different kind of signature? Are there any changes I have to make to existing PDF's to encrypt them with a cert?

Thx again!