/// <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/";
try // Extract logical structure from a PDF document
{
using (PDFDoc doc = new PDFDoc(input_path + "tagged.pdf"))
{
doc.InitSecurityHandler();
bool example1 = true;
bool example2 = true;
bool example3 = true;
if (example1)
{
Console.WriteLine("____________________________________________________________");
Console.WriteLine("Sample 1 - Traverse logical structure tree...");
STree tree = doc.GetStructTree();
if (tree.IsValid())
{
Console.WriteLine("Document has a StructTree root.");
for (int i = 0; i < tree.GetNumKids(); ++i)
{
// Recursively get structure info for all all child elements.
ProcessStructElement(tree.GetKid(i), 0);
}
}
else
{
Console.WriteLine("This document does not contain any logical structure.");
}
Console.WriteLine();
Console.WriteLine("Done 1.");
}
if (example2)
{
Console.WriteLine("____________________________________________________________");
Console.WriteLine("Sample 2 - Get parent logical structure elements from");
Console.WriteLine("layout elements.");
ElementReader reader = new ElementReader();
for (PageIterator itr = doc.GetPageIterator(); itr.HasNext(); itr.Next())
{
reader.Begin(itr.Current());
ProcessElements(reader);
reader.End();
}
Console.WriteLine();
Console.WriteLine("Done 2.");
}
if (example3)
{
Console.WriteLine("____________________________________________________________");
Console.WriteLine("Sample 3 - 'XML style' extraction of PDF logical structure and page content.");
//A map which maps page numbers(as Integers)
//to page Maps(which map from struct mcid(as Integers) to
//text Strings)
Hashtable mcid_doc_map = new Hashtable();
ElementReader reader = new ElementReader();
for (PageIterator itr = doc.GetPageIterator(); itr.HasNext(); itr.Next())
{
Page pg = itr.Current();
reader.Begin(pg);
Hashtable page_mcid_map = new Hashtable();
mcid_doc_map.Add(pg.GetIndex(), page_mcid_map);
ProcessElements2(reader, page_mcid_map);
reader.End();
}
STree tree = doc.GetStructTree();
if (tree.IsValid())
{
for (int i = 0; i < tree.GetNumKids(); ++i)
{
ProcessStructElement2(tree.GetKid(i), mcid_doc_map, 0);
}
}
Console.WriteLine();
Console.WriteLine("Done 3.");
}
doc.Save(output_path + "bookmark.pdf", 0);
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
}