Foxit PDF SDK for Windows

using namespace std;
using namespace foxit;
using namespace foxit::common;
using foxit::common::Library;
using namespace pdf;
using namespace annots;
using foxit::pdf::annots::Line;

// Create a blank document
PDFDoc doc = PDFDoc();

// Add a blank A4 page to the document
PDFPage page = doc.InsertPage(0, 595, 842);

// Create a note annotation 
annots::Note note(page.AddAnnot(Annot::e_Note, RectF(10, 350, 50, 400)));

// Set note annotation properties
note.SetIconName("Comment");
note.SetSubject(L"Note");
note.SetTitle(L"Foxit SDK");
note.SetContent(L"Note annotation.");
note.SetCreationDateTime(GetLocalDateTime());
note.SetModifiedDateTime(GetLocalDateTime());
note.SetUniqueID(WString::FromLocal(RandomUID()));

// Add state annotation to note annotation
Note state = note.AddStateAnnot(Markup::e_StateModelReview, Markup::e_StateAccepted);
state.SetContent(L"Accepted set by Foxit SDK");
state.SetTitle(L"Foxit SDK");
state.SetModifiedDateTime(GetLocalDateTime());
state.SetUniqueID(WString::FromLocal(RandomUID()));
state.ResetAppearanceStream();
// Appearance should be reset.
note.ResetAppearanceStream();
cout << "Add a note annotation." << endl;

// Save PDF file