private bool ReplaceImage(PDFField field, PdfStamper stamp)
{
//ac.debugText("\nreplacin the image:" + field.getValue());
ArrayList fields = this.FindFieldLocs(field.Name);
if (fields.Count > 0)
{
//ac.debugText("\n\nfields:" + fields.size());
try
{
//File fImg = new File(field.Value);
PdfContentByte cb = null;
for (int x = 0; x <= fields.Count - 1; x++)
{
// = stamp.GetOverContent(1);
PDFFieldLocation fieldLoc = (PDFFieldLocation)fields[x];
//ac.debugText("\n\n(" + fieldLoc.x1 + "," + fieldLoc.y1 + ") \n\t\tWidth:" + (fieldLoc.x2 - fieldLoc.x1) + "\n\t\tHeight:" + (fieldLoc.y2 - fieldLoc.y1));
cb = stamp.GetOverContent(fieldLoc.page);
Image img = Image.GetInstance(field.ImageValue);
// (fImg.toURL());
img.SetAbsolutePosition(fieldLoc.x1, fieldLoc.y1);
img.ScaleAbsolute((fieldLoc.x2 - fieldLoc.x1), (fieldLoc.y2 - fieldLoc.y1));
cb.AddImage(img);
}
return(true);
}
// e.printStackTrace();
catch (Exception e)
{
throw new Exception("Critical Exception thrown within ReplaceImage", e);
}
return(false);
}
else
{
return(false);
}
}
private void GetFormFields(Stream source)
{
PdfReader reader = null;
try {
reader = new PdfReader(source);
PRAcroForm form = reader.AcroForm;
if (form == null)
{
//ac.debugText("This document has no fields.");
return;
}
//PdfLister list = new PdfLister(System.out);
Hashtable refToField = new Hashtable();
ArrayList fields = form.Fields;
foreach (PRAcroForm.FieldInformation field in fields)
{
refToField.Add(field.Ref.Number, field);
}
for (int page = 1; page <= reader.NumberOfPages; page++)
{
PdfDictionary dPage = reader.GetPageN(page);
PdfArray annots = (PdfArray)PdfReader.GetPdfObject((PdfObject)dPage.Get(PdfName.ANNOTS));
if (annots == null)
{
break;
}
ArrayList ali = annots.ArrayList;
PRIndirectReference iRef = null;
foreach (PdfObject refObj in ali)
{
PdfDictionary an = (PdfDictionary)PdfReader.GetPdfObject(refObj);
PdfName name = (PdfName)an.Get(PdfName.SUBTYPE);
if (name == null || !name.Equals(PdfName.WIDGET))
{
break;
}
PdfArray rect = (PdfArray)PdfReader.GetPdfObject(an.Get(PdfName.RECT));
string fName = "";
PRAcroForm.FieldInformation field = null;
while ((an != null))
{
PdfString tName = (PdfString)an.Get(PdfName.T);
if ((tName != null))
{
fName = tName.ToString() + "." + fName;
}
if (refObj.IsIndirect() && field == null)
{
iRef = (PRIndirectReference)refObj;
field = (PRAcroForm.FieldInformation)refToField[iRef.Number];
}
//refObj = (PdfObject)an.Get(PdfName.PARENT);
an = (PdfDictionary)PdfReader.GetPdfObject((PdfObject)an.Get(PdfName.PARENT));
}
if (fName.EndsWith("."))
{
fName = fName.Substring(0, fName.Length - 1);
}
PDFFieldLocation tempLoc = new PDFFieldLocation();
ArrayList arr = rect.ArrayList;
tempLoc.fieldName = fName;
tempLoc.page = page;
tempLoc.x1 = ((PdfNumber)PdfReader.GetPdfObject((PdfObject)arr[0])).FloatValue;
tempLoc.y1 = ((PdfNumber)PdfReader.GetPdfObject((PdfObject)arr[1])).FloatValue;
tempLoc.x2 = ((PdfNumber)PdfReader.GetPdfObject((PdfObject)arr[2])).FloatValue;
tempLoc.y2 = ((PdfNumber)PdfReader.GetPdfObject((PdfObject)arr[3])).FloatValue;
this.PFDlocs.Add(tempLoc);
}
}
}
catch (Exception e) {
throw new Exception("Critical Exception in GetFormFields", e);
}
finally {
if ((reader != null))
{
reader.Close();
}
}
}
