public byte[] MergeFieldsInPdfFile(byte[] inputPdf, IMergeFieldsProvider sourceObject)
{
var pr = new PdfReader(inputPdf);
var ims = new MemoryStream();
var ps = new PdfStamper(pr, ims);
AcroFields af = ps.AcroFields;
foreach (string fieldName in af.Fields.Keys)
{
try
{
string content = sourceObject.GetContentsFor(fieldName);
af.SetField(fieldName, content);
}
catch
{
//Field not found.
}
}
ps.Close();
byte[] output = ims.ToArray();
return(output);
}
public static void ReplaceMailMergeFields(string dir, string msWordFileName, IMergeFieldsProvider domainObject, string fileSuffix)
{
object docName = msWordFileName;
object missing = Missing.Value;
// Hide MS Word's window.
var app = new Application {
Visible = false
} as _Application;
var path = dir + docName as object;
_Document doc = app.Documents.Open(ref path);
MailMerge mailMerge = doc.MailMerge;
// Try to find the field name.
foreach (MailMergeField f in mailMerge.Fields)
{
// Assuming the field code is: MERGEFIELD "mailMergeFieldName"
string mailMergeFieldName = f.Code.Text;
string newValue = domainObject.GetContentsFor(mailMergeFieldName);
if (!string.IsNullOrWhiteSpace(newValue))
{
f.Select();
// Replace selected field with supplied value.
app.Selection.TypeText(newValue);
}
}
// Save changes and close MS Word.
object newName = dir + msWordFileName.Replace(".docx", "") + "-" + fileSuffix + ".docx";
doc.SaveAs2(ref newName);
object saveChanges = Word.WdSaveOptions.wdDoNotSaveChanges;
doc.Close(ref saveChanges, ref missing, ref missing);
app.Quit(ref missing, ref missing, ref missing);
}