/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
PDFNet.Initialize();
// Relative path to the folder containing test files.
string input_path = "../../TestFiles/";
string output_path = "../../TestFiles/Output/";
// Example 1)
// Iterate over all form fields in the document. Display all field names.
try
{
using (PDFDoc doc = new PDFDoc(input_path + "form1.pdf"))
{
doc.InitSecurityHandler();
FieldIterator itr;
for (itr = doc.GetFieldIterator(); itr.HasNext(); itr.Next())
{
Console.WriteLine("Field name: {0:s}", itr.Current().GetName());
Console.WriteLine("Field partial name: {0:s}", itr.Current().GetPartialName());
Console.Write("Field type: ");
Field.Type type = itr.Current().GetType();
switch (type)
{
case Field.Type.e_button:
Console.WriteLine("Button"); break;
case Field.Type.e_text:
Console.WriteLine("Text"); break;
case Field.Type.e_choice:
Console.WriteLine("Choice"); break;
case Field.Type.e_signature:
Console.WriteLine("Signature"); break;
}
Console.WriteLine("------------------------------");
}
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
// Example 2) Import XFDF into FDF, then merge data from FDF into PDF
try
{
// XFDF to FDF
// form fields
Console.WriteLine("Import form field data from XFDF to FDF.");
FDFDoc fdf_doc1 = new FDFDoc(FDFDoc.CreateFromXFDF(input_path + "form1_data.xfdf"));
fdf_doc1.Save(output_path + "form1_data.fdf");
// annotations
Console.WriteLine("Import annotations from XFDF to FDF.");
FDFDoc fdf_doc2 = new FDFDoc(FDFDoc.CreateFromXFDF(input_path + "form1_annots.xfdf"));
fdf_doc2.Save(output_path + "form1_annots.fdf");
// FDF to PDF
// form fields
Console.WriteLine("Merge form field data from FDF.");
using (PDFDoc doc = new PDFDoc(input_path + "form1.pdf"))
{
doc.InitSecurityHandler();
doc.FDFMerge(fdf_doc1);
// To use PDFNet form field appearance generation instead of relying on
// Acrobat, uncomment the following two lines:
// doc.RefreshFieldAppearances();
// doc.GetAcroForm().Put("NeedAppearances", Obj.CreateBool(false));
doc.Save(output_path + "form1_filled.pdf", SDFDoc.SaveOptions.e_linearized);
// annotations
Console.WriteLine("Merge annotations from FDF.");
doc.FDFMerge(fdf_doc2);
doc.Save(output_path + "form1_filled_with_annots.pdf", SDFDoc.SaveOptions.e_linearized);
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
// Example 3) Extract data from PDF to FDF, then export FDF as XFDF
try
{
// PDF to FDF
using (PDFDoc in_doc = new PDFDoc(output_path + "form1_filled_with_annots.pdf"))
{
in_doc.InitSecurityHandler();
// form fields only
Console.WriteLine("Extract form fields data to FDF.");
FDFDoc doc_fields = in_doc.FDFExtract(PDFDoc.ExtractFlag.e_forms_only);
doc_fields.SetPdfFileName("../form1_filled_with_annots.pdf");
doc_fields.Save(output_path + "form1_filled_data.fdf");
// annotations only
Console.WriteLine("Extract annotations to FDF.");
FDFDoc doc_annots = in_doc.FDFExtract(PDFDoc.ExtractFlag.e_annots_only);
doc_annots.SetPdfFileName("../form1_filled_with_annots.pdf");
doc_annots.Save(output_path + "form1_filled_annot.fdf");
// both form fields and annotations
Console.WriteLine("Extract both form fields and annotations to FDF.");
FDFDoc doc_both = in_doc.FDFExtract(PDFDoc.ExtractFlag.e_both);
doc_both.SetPdfFileName("../form1_filled_with_annots.pdf");
doc_both.Save(output_path + "form1_filled_both.fdf");
// FDF to XFDF
// form fields
Console.WriteLine("Export form field data from FDF to XFDF.");
doc_fields.SaveAsXFDF(output_path + "form1_filled_data.xfdf");
// annotations
Console.WriteLine("Export annotations from FDF to XFDF.");
doc_annots.SaveAsXFDF(output_path + "form1_filled_annot.xfdf");
// both form fields and annotations
Console.WriteLine("Export both form fields and annotations from FDF to XFDF.");
doc_both.SaveAsXFDF(output_path + "form1_filled_both.xfdf");
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
// Example 4) Merge/Extract XFDF into/from PDF
try
{
// Merge XFDF from string
PDFDoc in_doc = new PDFDoc(input_path + "numbered.pdf");
{
in_doc.InitSecurityHandler();
Console.WriteLine("Merge XFDF string into PDF.");
string str = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?><xfdf xmlns=\"http://ns.adobe.com/xfdf\" xml:space=\"preserve\"><square subject=\"Rectangle\" page=\"0\" name=\"cf4d2e58-e9c5-2a58-5b4d-9b4b1a330e45\" title=\"user\" creationdate=\"D:20120827112326-07'00'\" date=\"D:20120827112326-07'00'\" rect=\"227.7814207650273,597.6174863387978,437.07103825136608,705.0491803278688\" color=\"#000000\" interior-color=\"#FFFF00\" flags=\"print\" width=\"1\"><popup flags=\"print,nozoom,norotate\" open=\"no\" page=\"0\" rect=\"0,792,0,792\" /></square></xfdf>";
using (FDFDoc fdoc = new FDFDoc(FDFDoc.CreateFromXFDF(str)))
{
in_doc.FDFMerge(fdoc);
in_doc.Save(output_path + "numbered_modified.pdf", SDFDoc.SaveOptions.e_linearized);
Console.WriteLine("Merge complete.");
}
// Extract XFDF as string
Console.WriteLine("Extract XFDF as a string.");
FDFDoc fdoc_new = in_doc.FDFExtract(PDFDoc.ExtractFlag.e_both);
string XFDF_str = fdoc_new.SaveAsXFDF();
Console.WriteLine("Extracted XFDF: ");
Console.WriteLine(XFDF_str);
Console.WriteLine("Extract complete.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
// Example 5) Read FDF files directly
try
{
FDFDoc doc = new FDFDoc(output_path + "form1_filled_data.fdf");
FDFFieldIterator itr = doc.GetFieldIterator();
for (; itr.HasNext(); itr.Next())
{
Console.WriteLine("Field name: {0:s}", itr.Current().GetName());
Console.WriteLine("Field partial name: {0:s}", itr.Current().GetPartialName());
Console.WriteLine("------------------------------");
}
Console.WriteLine("Done.");
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
// Example 6) Direct generation of FDF.
try
{
FDFDoc doc = new FDFDoc();
// Create new fields (i.e. key/value pairs).
doc.FieldCreate("Company", (int)Field.Type.e_text, "PDFTron Systems");
doc.FieldCreate("First Name", (int)Field.Type.e_text, "John");
doc.FieldCreate("Last Name", (int)Field.Type.e_text, "Doe");
// ...
// doc.SetPdfFileName("mydoc.pdf");
doc.Save(output_path + "sample_output.fdf");
Console.WriteLine("Done. Results saved in sample_output.fdf");
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
}