public virtual void CreateHiddenByFieldNameTest()
{
String fileName = "createHiddenByFieldNameTest.pdf";
PdfDocument document = CreateDocument(new PdfWriter(destinationFolder + fileName), false);
document.GetPage(1).SetAdditionalAction(PdfName.O, PdfAction.CreateHide("name", true));
document.Close();
NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + fileName, sourceFolder
+ "cmp_" + fileName, destinationFolder, "diff_"));
}
public virtual void CreateHiddenAnnotationTest()
{
String fileName = "createHiddenAnnotationTest.pdf";
PdfDocument document = CreateDocument(new PdfWriter(destinationFolder + fileName), false);
PdfAnnotation annotation = new PdfLineAnnotation(new Rectangle(10, 10, 200, 200), new float[] { 50, 750, 50
, 750 });
document.GetPage(1).SetAdditionalAction(PdfName.O, PdfAction.CreateHide(annotation, true));
document.Close();
NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + fileName, sourceFolder
+ "cmp_" + fileName, destinationFolder, "diff_"));
}
public Task WriteAnnotatedPdfAsync(string pdfDocumentPath, IEnumerable <IAnnotation> annotations, string filePath)
{
using (var reader = new PdfReader(pdfDocumentPath))
using (var outFile = File.Open(filePath, FileMode.Create))
using (var writer = new PdfWriter(outFile))
using (var doc = new PdfDocument(reader, writer))
{
var acroForm = PdfAcroForm.GetAcroForm(doc, true);
foreach (var ann in annotations)
{
var targets = ann.SelectedTargets;
if (targets == null || targets.Count < 1)
{
targets = ann.Subject.Appearances ?? throw new ArgumentException($"The subject word {ann.Subject.Text} for a given annotation has no appearances.");
}
foreach (var trg in targets)
{
var page = doc.GetPage(trg.Parent.Index + 1);
var font = PdfFontFactory.CreateRegisteredFont(iText.IO.Font.Constants.StandardFonts.HELVETICA);
var coord = trg.GetPdfCoords();
var buttonRect = new Rectangle(coord.Llx, coord.Lly, coord.width, coord.height);
var txRect = GetAnnotationRect(buttonRect, font, ann, trg);
var textFieldName = Guid.NewGuid().ToString("n");
var textField = PdfFormField.CreateText(doc, txRect, textFieldName);
textField.SetValue(ann.Content, font, FontSize);
textField.SetColor(ColorConstants.DARK_GRAY);
textField.SetBackgroundColor(ColorConstants.LIGHT_GRAY);
textField.SetReadOnly(true);
textField.SetMultiline(true);
textField.SetVisibility(PdfFormField.HIDDEN);
textField.SetBorderColor(ColorConstants.LIGHT_GRAY);
textField.SetFieldFlags(4097);
acroForm.AddField(textField, page);
var enter = PdfAction.CreateHide(textFieldName, false);
var exit = PdfAction.CreateHide(textFieldName, true);
var btn = PdfFormField.CreatePushButton(doc, buttonRect, Guid.NewGuid().ToString("n"),
string.Empty);
btn.SetBackgroundColor(null);
btn.SetBorderWidth(0);
btn.SetAdditionalAction(PdfName.E, enter);
btn.SetAdditionalAction(PdfName.X, exit);
acroForm.AddField(btn, page);
var underline = PdfTextMarkupAnnotation.CreateUnderline(new Rectangle(buttonRect.GetX(), buttonRect.GetY() - 2, buttonRect.GetWidth(), 3),
new float[]
{
buttonRect.GetX() + buttonRect.GetWidth(), buttonRect.GetY() + buttonRect.GetHeight(),
buttonRect.GetX(), buttonRect.GetY() + buttonRect.GetHeight(),
buttonRect.GetX() + buttonRect.GetWidth(), buttonRect.GetY() - 2,
buttonRect.GetX(), buttonRect.GetY() - 2,
});
underline.SetColor(ColorConstants.YELLOW);
page.AddAnnotation(underline);
}
}
}
return(Task.CompletedTask);
}
