public static void SignPDF(
string filePath,
string username,
string domain,
string password,
int sigPageNum,
int sigX,
int sigY,
int sigWidth,
int sigHeight,
string title)
{
const int SAPI_OK = 0;
const int AR_PDF_FLAG_FILESIGN_VERTICAL = 0x00000020;
int rc;
SAPICrypt SAPI = new SAPICryptClass();
SESHandle sesHandle = null;
GraphicImageHandle grpImgHandle = null;
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")));
}
// If the user has more than one graphical signatures, this function opens a new dialog window enabling the user to view and select an image with which to sign.
if ((rc = SAPI.GraphicSigImageGUISelect(sesHandle, (int)0xFF, 0, SAPI_ENUM_GR_IMG_SELECT_MODE.SAPI_ENUM_GR_IMG_SEL_MODE_SELECT, out grpImgHandle)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIGraphicSigImageGUISelect() ({0})", rc.ToString("X")));
}
// Set the graphical image associated with the graphic image handle as the default graphic signature image
if ((rc = SAPI.GraphicSigImageSetDefaultEx(sesHandle, grpImgHandle, 0)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIGraphicSigImageSetDefaultEx() ({0})", rc.ToString("X")));
}
SigFieldSettingsClass SFS = new SigFieldSettingsClass();
TimeFormatClass TF = new TimeFormatClass();
// Define signature field settings
SFS.Page = sigPageNum;
SFS.X = sigX;
SFS.Y = sigY;
SFS.Width = sigWidth;
SFS.Height = sigHeight;
SFS.AppearanceMask = (int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_GRAPHICAL_IMAGE |
(int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_SIGNED_BY |
(int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_TIME;
SFS.SignatureType = SAPI_ENUM_SIGNATURE_TYPE.SAPI_ENUM_SIGNATURE_DIGITAL;
SFS.DependencyMode = SAPI_ENUM_DEPENDENCY_MODE.SAPI_ENUM_DEPENDENCY_MODE_INDEPENDENT;
TF.DateFormat = "dd/MM/yyyy";
TF.TimeFormat = "hh:mm:ss";
TF.ExtTimeFormat = SAPI_ENUM_EXTENDED_TIME_FORMAT.SAPI_ENUM_EXTENDED_TIME_FORMAT_GMT; // Display GMT offset
SFS.TimeFormat = TF;
if (!string.IsNullOrEmpty(title))
{
// Set signer's title
if ((rc = SAPI.ConfigurationValueSet(sesHandle, SAPI_ENUM_CONF_ID.SAPI_ENUM_CONF_ID_TITLE, SAPI_ENUM_DATA_TYPE.SAPI_ENUM_DATA_TYPE_WSTR, title, 1)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIConfigurationValueSet() ({0})", rc.ToString("X")));
}
SFS.AppearanceMask |= (int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_TITLE;
}
// Create and sign a new signature field in the document
if (SAPI_OK != (rc = SAPI.SignatureFieldCreateSign(sesHandle, SAPI_ENUM_FILE_TYPE.SAPI_ENUM_FILE_ADOBE, filePath, SFS, AR_PDF_FLAG_FILESIGN_VERTICAL, null)))
{
throw new Exception(string.Format("Failed in SAPISignatureFieldCreateSign() ({0})", rc.ToString("X")));
}
}
catch (Exception ex)
{
if (sesHandle != null)
{
SAPI.Logoff(sesHandle); // Release user context
SAPI.HandleRelease(sesHandle); // Release session handle
}
if (grpImgHandle != null)
{
SAPI.HandleRelease(grpImgHandle);
}
throw ex;
}
}
public static void SignPDF(
string filePath,
string username,
string domain,
string password,
int sigPageNum,
int sigX,
int sigY,
int sigWidth,
int sigHeight,
string title)
{
const int SAPI_OK = 0;
const int AR_PDF_FLAG_FILESIGN_VERTICAL = 0x00000020;
int rc;
SAPICrypt SAPI = new SAPICryptClass();
SESHandle sesHandle = null;
GraphicImageHandle grpImgHandle = null;
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")));
}
// If the user has more than one graphical signatures, this function opens a new dialog window enabling the user to view and select an image with which to sign.
if ((rc = SAPI.GraphicSigImageGUISelect(sesHandle, (int)0xFF, 0, SAPI_ENUM_GR_IMG_SELECT_MODE.SAPI_ENUM_GR_IMG_SEL_MODE_SELECT, out grpImgHandle)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIGraphicSigImageGUISelect() ({0})", rc.ToString("X")));
}
// Set the graphical image associated with the graphic image handle as the default graphic signature image
if ((rc = SAPI.GraphicSigImageSetDefaultEx(sesHandle, grpImgHandle, 0)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIGraphicSigImageSetDefaultEx() ({0})", rc.ToString("X")));
}
SigFieldSettingsClass SFS = new SigFieldSettingsClass();
TimeFormatClass TF = new TimeFormatClass();
// Define signature field settings
SFS.Page = sigPageNum;
SFS.X = sigX;
SFS.Y = sigY;
SFS.Width = sigWidth;
SFS.Height = sigHeight;
SFS.AppearanceMask = (int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_GRAPHICAL_IMAGE |
(int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_SIGNED_BY |
(int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_TIME;
SFS.SignatureType = SAPI_ENUM_SIGNATURE_TYPE.SAPI_ENUM_SIGNATURE_DIGITAL;
SFS.DependencyMode = SAPI_ENUM_DEPENDENCY_MODE.SAPI_ENUM_DEPENDENCY_MODE_INDEPENDENT;
TF.DateFormat = "dd/MM/yyyy";
TF.TimeFormat = "hh:mm:ss";
TF.ExtTimeFormat = SAPI_ENUM_EXTENDED_TIME_FORMAT.SAPI_ENUM_EXTENDED_TIME_FORMAT_GMT; // Display GMT offset
SFS.TimeFormat = TF;
if (!string.IsNullOrEmpty(title))
{
// Set signer's title
if ((rc = SAPI.ConfigurationValueSet(sesHandle, SAPI_ENUM_CONF_ID.SAPI_ENUM_CONF_ID_TITLE, SAPI_ENUM_DATA_TYPE.SAPI_ENUM_DATA_TYPE_WSTR, title, 1)) != SAPI_OK)
{
throw new Exception(string.Format("Failed in SAPIConfigurationValueSet() ({0})", rc.ToString("X")));
}
SFS.AppearanceMask |= (int)SAPI_ENUM_DRAWING_ELEMENT.SAPI_ENUM_DRAWING_ELEMENT_TITLE;
}
// Create and sign a new signature field in the document
if (SAPI_OK != (rc = SAPI.SignatureFieldCreateSign(sesHandle, SAPI_ENUM_FILE_TYPE.SAPI_ENUM_FILE_ADOBE, filePath, SFS, AR_PDF_FLAG_FILESIGN_VERTICAL, null)))
{
throw new Exception(string.Format("Failed in SAPISignatureFieldCreateSign() ({0})", rc.ToString("X")));
}
}
catch (Exception ex)
{
if (sesHandle != null)
{
SAPI.Logoff(sesHandle); // Release user context
SAPI.HandleRelease(sesHandle); // Release session handle
}
if (grpImgHandle != null)
{
SAPI.HandleRelease(grpImgHandle);
}
throw ex;
}
}
