//Static Constructor
static SAPIWrapper()
{
try
{
SAPI = new SAPICryptClass();
}
catch
{
System.Windows.Forms.MessageBox.Show("SAPI is not installed");
System.Windows.Forms.Application.Exit();
}
int rc = SAPI.Init();
if (rc != 0)
{
System.Windows.Forms.MessageBox.Show("Failed to initialize SAPI (" + rc.ToString("X") + ")");
System.Windows.Forms.Application.Exit();
}
rc = SAPI.HandleAcquire(out hSession);
if (rc != 0)
{
System.Windows.Forms.MessageBox.Show("Failed in SAPIHandleAcquire (" + rc.ToString("X") + ")");
System.Windows.Forms.Application.Exit();
}
isLoggedIn = false;
}
//Static Constructor
static SAPIWrapper()
{
try
{
SAPI = new SAPICryptClass();
}
catch
{
System.Windows.Forms.MessageBox.Show("SAPI is not installed");
System.Windows.Forms.Application.Exit();
}
int rc = SAPI.Init();
if (rc != 0)
{
System.Windows.Forms.MessageBox.Show("Failed to initialize SAPI (" + rc.ToString("X") + ")");
System.Windows.Forms.Application.Exit();
}
rc = SAPI.HandleAcquire(out hSession);
if (rc != 0)
{
System.Windows.Forms.MessageBox.Show("Failed in SAPIHandleAcquire (" + rc.ToString("X") + ")");
System.Windows.Forms.Application.Exit();
}
isLoggedIn = false;
}
//SAPIInit() should be called in the static constructor in order to make sure
//that it's called only once, when the class is being initialized.
static FileSign()
{
SAPICrypt SAPI = new SAPICrypt();
int rc = SAPI.Init(); //SAPIInit() should be called once per process
if (rc != 0)
{
throw new Exception("Failed to initialize SAPI! (" + rc.ToString("X") + ")");
}
}
//Thread-Safe SAPIInit()
private static void SAPIInit()
{
SAPICrypt SAPI = new SAPICrypt();
lock (_SyncRoot)
{
//Do nothing if SAPI is initialized already
if (isSAPIInitialized(SAPI))
{
return;
}
//Initialize SAPI
int rc = SAPI.Init();
if (rc != 0)
{
throw new Exception(string.Format(
"Failed to load SAPI library (#{0})", rc.ToString("X")));
}
}
}
static void Main(string[] args)
{
const int SAPI_OK = 0;
int rc;
SAPICrypt SAPI = new SAPICrypt();
SESHandle sesHandle = null;
// Custom Values
string filePath = @"c:\temp\demo.pdf"; // PDF file to sign
string username = "******"; // DSA account username
string password = "******"; // DSA account password
string domain = null; // DSA account domain
int sigPageNum = 1; // Create signature on the first page
int sigX = 145; // Signature field X location
int sigY = 125; // Signature field Y location
int sigWidth = 160; // Signature field width
int sigHeight = 45; // Signature field height
string timeFormat = "hh:mm:ss"; // Time appearance format mask
string dateFormat = "dd/MM/yyyy"; // Date appearance format mask
int appearanceMask = (int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_GRAPHICAL_IMAGE | // Elements to display on the signature field
(int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_SIGNED_BY |
(int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_TIME;
try
{
// Initialize SAPI library
if ((rc = SAPI.Init()) != SAPI_OK)
{
throw new Exception(string.Format("Failed to initialize SAPI ({0})", rc.ToString("X")));
}
// Acquire SAPI session handle
if ((rc = SAPI.HandleAcquire(out sesHandle)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIHandleAcquire() ({0})", rc.ToString("X")));
}
// Personalize SAPI Session
if ((rc = SAPI.Logon(sesHandle, username, domain, password)) != SAPI_OK)
{
throw new Exception(string.Format("Failed to authenticate user ({0})", rc.ToString("X")));
}
SigFieldSettings SFS = new SigFieldSettings();
TimeFormat TF = new TimeFormat();
// Define signature field settings
SFS.Page = sigPageNum;
SFS.X = sigX;
SFS.Y = sigY;
SFS.Width = sigWidth;
SFS.Height = sigHeight;
SFS.AppearanceMask = appearanceMask;
SFS.SignatureType = SAPI_ENUM_SIGNATURE_TYPE.SAPI_ENUM_SIGNATURE_DIGITAL;
SFS.DependencyMode = SAPI_ENUM_DEPENDENCY_MODE.SAPI_ENUM_DEPENDENCY_MODE_INDEPENDENT;
TF.DateFormat = dateFormat;
TF.TimeFormat = timeFormat;
TF.ExtTimeFormat = SAPI_ENUM_EXTENDED_TIME_FORMAT.SAPI_ENUM_EXTENDED_TIME_FORMAT_GMT; // Display GMT offset
SFS.TimeFormat = TF;
// Create and sign a new signature field in the document
if (SAPI_OK != (rc = SAPI.SignatureFieldCreateSign(
sesHandle, // Session Handle
SAPI_ENUM_FILE_TYPE.SAPI_ENUM_FILE_ADOBE, // Type of the file to sign - PDF
filePath, // Path to PDF file to sign
SFS, // Signature Field details
0, // Flags
null))) // Credentials (only if prompt-for-sign feature is enabled)
{
throw new Exception(string.Format("Failed in SAPISignatureFieldCreateSign() ({0})", rc.ToString("X")));
}
Console.WriteLine("The document has been successfully signed!");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (sesHandle != null)
{
SAPI.Logoff(sesHandle); // Release user context
SAPI.HandleRelease(sesHandle); // Release session handle
}
}
}
static void Main(string[] args)
{
string InFileName = "C:\\temp\\tag-sample.pdf";
string OutFileName = "C:\\temp\\tag-sample-signed.pdf";
string startDelim = "<<";
string endDelim = ">>";
int rc;
SESHandle SesHandle;
SigFieldSettings SFS = new SigFieldSettings();
TimeFormat TF = new TimeFormat();
int Flags = AR_PDF_FLAG_FIELD_NAME_SET;
int LocNumber;
SAPICrypt SAPI = new SAPICrypt();
// SAPIInit() should be called once per process
if ((rc = SAPI.Init()) != 0)
{
throw new Exception("Failed to initialize SAPI! (" + rc.ToString("X") + ")");
}
// Open a new SAPI context
if ((rc = SAPI.HandleAcquire(out SesHandle)) != 0)
{
throw new Exception("Failed in SAPIHandleAcquire() with rc = " + rc.ToString("X"));
}
if ((rc = SAPI.Logon(SesHandle, "{DSA User}", null, "{DSA User password}")) != 0)
{
SAPI.HandleRelease(SesHandle);
throw new Exception("Failed in SAPILogon() with rc = " + rc.ToString("X"));
}
//
// Locate all field tags in the PDF
// The PDF filename to be used is defined above.
// The format of each field locator in the PDF should be:
// << w={width}; h={height}; n={field name}; a={appearance mask} >>
//
// For example:
// << w=120; h=80; n=Signer1; a=15; >>
//
SAPIContext SigLocatorCtx = new SAPIContext();
Array fileBytes = File.ReadAllBytes(InFileName);
SAPIByteArray doc = new SAPIByteArray();
doc.FromArray(ref fileBytes);
FileHandle fh;
if ((rc = SAPI.CreateFileHandleByMem(out fh, SAPI_ENUM_FILE_TYPE.SAPI_ENUM_FILE_ADOBE, 0, doc)) != 0)
{
SAPI.HandleRelease(SesHandle);
throw new Exception("Failed to create file handle with rc = " + rc.ToString("X"));
}
// Initiate a new Field Locator enumerator.
// The argument LocNumber will contain the number of signature tags found in the PDF document.
//
if ((rc = SAPI.SignatureFieldLocatorEnumInit(SesHandle, SigLocatorCtx, fh, startDelim, endDelim, 0, out LocNumber)) != 0)
{
SAPI.HandleRelease(fh);
SAPI.HandleRelease(SesHandle);
throw new Exception("LocatorEnumInit failed with rc = " + rc.ToString("X"));
}
// Do for all tags in the document
string strEncMsg;
for (int i = 0; i < LocNumber; i++)
{
// Get settings for the next field locator.
// (Use strEncMsg string to parse the field locator content if a custom string format has been used)
if ((rc = SAPI.SignatureFieldLocatorEnumCont(SesHandle, SigLocatorCtx, SFS, out strEncMsg)) != 0)
{
SAPI.ContextRelease(SigLocatorCtx);
SAPI.HandleRelease(fh);
SAPI.HandleRelease(SesHandle);
throw new Exception("LocatorEnumCont failed with rc = " + rc.ToString("X"));
}
// The following values of the SignatureFieldSettings will be automatically set by SAPI:
// X/Y Location (including page number)
// Width
// Height
// Field Name
// Appearance Mask
//
SFS.LabelsMask = 0;
SFS.DependencyMode = SAPI_ENUM_DEPENDENCY_MODE.SAPI_ENUM_DEPENDENCY_MODE_INDEPENDENT;
SFS.SignatureType = SAPI_ENUM_SIGNATURE_TYPE.SAPI_ENUM_SIGNATURE_DIGITAL;
SFS.Flags = 0;
// time:
TF.DateFormat = "dd MMM yyyy";
TF.TimeFormat = "hh:mm:ss";
TF.ExtTimeFormat = SAPI_ENUM_EXTENDED_TIME_FORMAT.SAPI_ENUM_EXTENDED_TIME_FORMAT_NONE;
SFS.TimeFormat = TF;
// Now create the signature field on the PDF
// We make use of SignatureFieldCreateEx function in order to pass the FileHandle for the in-memory
// file rather than a UNC file path.
if ((rc = SAPI.SignatureFieldCreateSignEx2(SesHandle, SAPI_ENUM_FILE_TYPE.SAPI_ENUM_FILE_ADOBE,
"", fh, SFS, Flags, null)) != 0)
{
SAPI.ContextRelease(SigLocatorCtx);
SAPI.HandleRelease(fh);
SAPI.HandleRelease(SesHandle);
throw new Exception("Failed to create new signature field with rc = " + rc.ToString("X"));
}
}
// Write the PDF to an output file
if ((rc = SAPI.GetFileMemData(fh, 0, doc)) != 0)
{
SAPI.ContextRelease(SigLocatorCtx);
SAPI.HandleRelease(fh);
SAPI.HandleRelease(SesHandle);
throw new Exception("Failed to GetFileMem with rc = " + rc.ToString("X"));
}
File.WriteAllBytes(OutFileName, (byte[])doc.ToArray());
// Finalize work with SAPI
SAPI.ContextRelease(SigLocatorCtx);
SAPI.HandleRelease(fh);
SAPI.HandleRelease(SesHandle);
}