static void SignPDF()
{
PDFNet.Initialize();
// Create a page
using (var doc = new PDFDoc()) {
var page = doc.PageCreate(new Rect(0, 0, 595, 842));
page.SetRotation(Page.Rotate.e_0);
page.SetCropBox(new Rect(0, 0, 595, 842));
doc.PagePushBack(page);
var rect = new Rect(0, 0, 0, 0);
var fieldId = Guid.NewGuid().ToString();
var fieldToSign = doc.FieldCreate(fieldId, Field.Type.e_signature);
var signatureAnnotation = Widget.Create(doc, rect, fieldToSign);
signatureAnnotation.SetFlag(Annot.Flag.e_print, true);
signatureAnnotation.SetPage(page);
var widgetObj = signatureAnnotation.GetSDFObj();
widgetObj.PutNumber("F", 132.0);
widgetObj.PutName("Type", "Annot");
page.AnnotPushBack(signatureAnnotation);
//Create the signature handler
var sigHandler = new RemoteSignatureTimeStampPdfHandler(new HttpClient());
//Add handler to PDFDoc instance
var sigHandlerId = doc.AddSignatureHandler(sigHandler);
// Add the SignatureHandler instance to PDFDoc, making sure to keep track of it using the ID returned.
var sigDict = fieldToSign.UseSignatureHandler(sigHandlerId);
var signatureObject = signatureAnnotation.GetSDFObj();
var cultureInfo = new CultureInfo("en-US");
var gmt1Date = DateTime.Now;
var value = gmt1Date.ToString("'D:'yyyyMMddHHmmsszzz", cultureInfo);
// Add signing date
sigDict.PutString("M", value);
doc.Save(SDFDoc.SaveOptions.e_incremental);
}
}
static void Main(string[] args)
{
PDFNet.Initialize();
// Relative path to the folder containing test files.
// string input_path = "../../TestFiles/";
string output_path = "../../TestFiles/Output/";
// The vector used to store the name and count of all fields.
// This is used later on to clone the fields
Dictionary <string, int> field_names = new Dictionary <string, int>();
//----------------------------------------------------------------------------------
// Example 1: Programatically create new Form Fields and Widget Annotations.
//----------------------------------------------------------------------------------
try
{
using (PDFDoc doc = new PDFDoc())
{
// Create a blank new page and add some form fields.
Page blank_page = doc.PageCreate();
// Text Widget Creation
// Create an empty text widget with black text.
TextWidget text1 = TextWidget.Create(doc, new Rect(110, 700, 380, 730));
text1.SetText("Basic Text Field");
text1.RefreshAppearance();
blank_page.AnnotPushBack(text1);
// Create a vertical text widget with blue text and a yellow background.
TextWidget text2 = TextWidget.Create(doc, new Rect(50, 400, 90, 730));
text2.SetRotation(90);
// Set the text content.
text2.SetText(" ****Lucky Stars!****");
// Set the font type, text color, font size, border color and background color.
text2.SetFont(Font.Create(doc, Font.StandardType1Font.e_helvetica_oblique));
text2.SetFontSize(28);
text2.SetTextColor(new ColorPt(0, 0, 1), 3);
text2.SetBorderColor(new ColorPt(0, 0, 0), 3);
text2.SetBackgroundColor(new ColorPt(1, 1, 0), 3);
text2.RefreshAppearance();
// Add the annotation to the page.
blank_page.AnnotPushBack(text2);
// Create two new text widget with Field names employee.name.first and employee.name.last
// This logic shows how these widgets can be created using either a field name string or
// a Field object
TextWidget text3 = TextWidget.Create(doc, new Rect(110, 660, 380, 690), "employee.name.first");
text3.SetText("Levi");
text3.SetFont(Font.Create(doc, Font.StandardType1Font.e_times_bold));
text3.RefreshAppearance();
blank_page.AnnotPushBack(text3);
Field emp_last_name = doc.FieldCreate("employee.name.last", Field.Type.e_text, "Ackerman");
TextWidget text4 = TextWidget.Create(doc, new Rect(110, 620, 380, 650), emp_last_name);
text4.SetFont(Font.Create(doc, Font.StandardType1Font.e_times_bold));
text4.RefreshAppearance();
blank_page.AnnotPushBack(text4);
// Signature Widget Creation (unsigned)
SignatureWidget signature1 = SignatureWidget.Create(doc, new Rect(110, 560, 260, 610));
signature1.RefreshAppearance();
blank_page.AnnotPushBack(signature1);
// CheckBox Widget Creation
// Create a check box widget that is not checked.
CheckBoxWidget check1 = CheckBoxWidget.Create(doc, new Rect(140, 490, 170, 520));
check1.RefreshAppearance();
blank_page.AnnotPushBack(check1);
// Create a check box widget that is checked.
CheckBoxWidget check2 = CheckBoxWidget.Create(doc, new Rect(190, 490, 250, 540), "employee.name.check1");
check2.SetBackgroundColor(new ColorPt(1, 1, 1), 3);
check2.SetBorderColor(new ColorPt(0, 0, 0), 3);
// Check the widget (by default it is unchecked).
check2.SetChecked(true);
check2.RefreshAppearance();
blank_page.AnnotPushBack(check2);
// PushButton Widget Creation
PushButtonWidget pushbutton1 = PushButtonWidget.Create(doc, new Rect(380, 490, 520, 540));
pushbutton1.SetTextColor(new ColorPt(1, 1, 1), 3);
pushbutton1.SetFontSize(36);
pushbutton1.SetBackgroundColor(new ColorPt(0, 0, 0), 3);
// Add a caption for the pushbutton.
pushbutton1.SetStaticCaptionText("PushButton");
pushbutton1.RefreshAppearance();
blank_page.AnnotPushBack(pushbutton1);
// ComboBox Widget Creation
ComboBoxWidget combo1 = ComboBoxWidget.Create(doc, new Rect(280, 560, 580, 610));
// Add options to the combobox widget.
combo1.AddOption("Combo Box No.1");
combo1.AddOption("Combo Box No.2");
combo1.AddOption("Combo Box No.3");
// Make one of the options in the combo box selected by default.
combo1.SetSelectedOption("Combo Box No.2");
combo1.SetTextColor(new ColorPt(1, 0, 0), 3);
combo1.SetFontSize(28);
combo1.RefreshAppearance();
blank_page.AnnotPushBack(combo1);
// ListBox Widget Creation
ListBoxWidget list1 = ListBoxWidget.Create(doc, new Rect(400, 620, 580, 730));
// Add one option to the listbox widget.
list1.AddOption("List Box No.1");
// Add multiple options to the listbox widget in a batch.
string[] list_options = new string[2] {
"List Box No.2", "List Box No.3"
};
list1.AddOptions(list_options);
// Select some of the options in list box as default options
list1.SetSelectedOptions(list_options);
// Enable list box to have multi-select when editing.
list1.GetField().SetFlag(Field.Flag.e_multiselect, true);
list1.SetFont(Font.Create(doc, Font.StandardType1Font.e_times_italic));
list1.SetTextColor(new ColorPt(1, 0, 0), 3);
list1.SetFontSize(28);
list1.SetBackgroundColor(new ColorPt(1, 1, 1), 3);
list1.RefreshAppearance();
blank_page.AnnotPushBack(list1);
// RadioButton Widget Creation
// Create a radio button group and add three radio buttons in it.
RadioButtonGroup radio_group = RadioButtonGroup.Create(doc, "RadioGroup");
RadioButtonWidget radiobutton1 = radio_group.Add(new Rect(140, 410, 190, 460));
radiobutton1.SetBackgroundColor(new ColorPt(1, 1, 0), 3);
radiobutton1.RefreshAppearance();
RadioButtonWidget radiobutton2 = radio_group.Add(new Rect(310, 410, 360, 460));
radiobutton2.SetBackgroundColor(new ColorPt(0, 1, 0), 3);
radiobutton2.RefreshAppearance();
RadioButtonWidget radiobutton3 = radio_group.Add(new Rect(480, 410, 530, 460));
// Enable the third radio button. By default the first one is selected
radiobutton3.EnableButton();
radiobutton3.SetBackgroundColor(new ColorPt(0, 1, 1), 3);
radiobutton3.RefreshAppearance();
radio_group.AddGroupButtonsToPage(blank_page);
// Custom push button annotation creation
PushButtonWidget custom_pushbutton1 = PushButtonWidget.Create(doc, new Rect(260, 320, 360, 360));
// Set the annotation appearance.
custom_pushbutton1.SetAppearance(CreateCustomButtonAppearance(doc, false), Annot.AnnotationState.e_normal);
// Create 'SubmitForm' action. The action will be linked to the button.
FileSpec url = FileSpec.CreateURL(doc, "http://www.pdftron.com");
pdftron.PDF.Action button_action = pdftron.PDF.Action.CreateSubmitForm(url);
// Associate the above action with 'Down' event in annotations action dictionary.
Obj annot_action = custom_pushbutton1.GetSDFObj().PutDict("AA");
annot_action.Put("D", button_action.GetSDFObj());
blank_page.AnnotPushBack(custom_pushbutton1);
// Add the page as the last page in the document.
doc.PagePushBack(blank_page);
// If you are not satisfied with the look of default auto-generated appearance
// streams you can delete "AP" entry from the Widget annotation and set
// "NeedAppearances" flag in AcroForm dictionary:
// doc.GetAcroForm().PutBool("NeedAppearances", true);
// This will force the viewer application to auto-generate new appearance streams
// every time the document is opened.
//
// Alternatively you can generate custom annotation appearance using ElementWriter
// and then set the "AP" entry in the widget dictionary to the new appearance
// stream.
//
// Yet another option is to pre-populate field entries with dummy text. When
// you edit the field values using PDFNet the new field appearances will match
// the old ones.
doc.RefreshFieldAppearances();
doc.Save(output_path + "forms_test1.pdf", 0);
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
//----------------------------------------------------------------------------------
// Example 2:
// Fill-in forms / Modify values of existing fields.
// Traverse all form fields in the document (and print out their names).
// Search for specific fields in the document.
//----------------------------------------------------------------------------------
try
{
using (PDFDoc doc = new PDFDoc(output_path + "forms_test1.pdf"))
{
doc.InitSecurityHandler();
FieldIterator itr;
for (itr = doc.GetFieldIterator(); itr.HasNext(); itr.Next())
{
Field field = itr.Current();
string cur_field_name = field.GetName();
// Add one to the count for this field name for later processing
field_names[cur_field_name] = (field_names.ContainsKey(cur_field_name) ? field_names[cur_field_name] + 1 : 1);
Console.WriteLine("Field name: {0}", field.GetName());
Console.WriteLine("Field partial name: {0}", field.GetPartialName());
string str_val = field.GetValueAsString();
Console.Write("Field type: ");
Field.Type type = field.GetType();
switch (type)
{
case Field.Type.e_button:
Console.WriteLine("Button");
break;
case Field.Type.e_radio:
Console.WriteLine("Radio button: Value = " + str_val);
break;
case Field.Type.e_check:
field.SetValue(true);
Console.WriteLine("Check box: Value = " + str_val);
break;
case Field.Type.e_text:
{
Console.WriteLine("Text");
// Edit all variable text in the document
String old_value = "none";
if (field.GetValue() != null)
{
old_value = field.GetValue().GetAsPDFText();
}
field.SetValue("This is a new value. The old one was: " + old_value);
}
break;
case Field.Type.e_choice:
Console.WriteLine("Choice");
break;
case Field.Type.e_signature:
Console.WriteLine("Signature");
break;
}
Console.WriteLine("------------------------------");
}
// Search for a specific field
Field fld = doc.GetField("employee.name.first");
if (fld != null)
{
Console.WriteLine("Field search for {0} was successful", fld.GetName());
}
else
{
Console.WriteLine("Field search failed.");
}
// Regenerate field appearances.
doc.RefreshFieldAppearances();
doc.Save(output_path + "forms_test_edit.pdf", 0);
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
//----------------------------------------------------------------------------------
// Sample: Form templating
// Replicate pages and form data within a document. Then rename field names to make
// them unique.
//----------------------------------------------------------------------------------
try
{
// Sample: Copying the page with forms within the same document
using (PDFDoc doc = new PDFDoc(output_path + "forms_test1.pdf"))
{
doc.InitSecurityHandler();
Page src_page = doc.GetPage(1);
doc.PagePushBack(src_page); // Append several copies of the second page
doc.PagePushBack(src_page); // Note that forms are successfully copied
doc.PagePushBack(src_page);
doc.PagePushBack(src_page);
// Now we rename fields in order to make every field unique.
// You can use this technique for dynamic template filling where you have a 'master'
// form page that should be replicated, but with unique field names on every page.
foreach (KeyValuePair <string, int> cur_field in field_names)
{
RenameAllFields(doc, cur_field.Key, cur_field.Value);
}
doc.Save(output_path + "forms_test1_cloned.pdf", 0);
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
//----------------------------------------------------------------------------------
// Sample:
// Flatten all form fields in a document.
// Note that this sample is intended to show that it is possible to flatten
// individual fields. PDFNet provides a utility function PDFDoc.FlattenAnnotations()
// that will automatically flatten all fields.
//----------------------------------------------------------------------------------
try
{
using (PDFDoc doc = new PDFDoc(output_path + "forms_test1.pdf"))
{
doc.InitSecurityHandler();
bool auto = true;
if (auto)
{
doc.FlattenAnnotations();
}
else // Manual flattening
{
// Traverse all pages
PageIterator pitr = doc.GetPageIterator();
for (; pitr.HasNext(); pitr.Next())
{
Page page = pitr.Current();
for (int i = page.GetNumAnnots() - 1; i >= 0; --i)
{
Annot annot = page.GetAnnot(i);
if (annot.GetType() == Annot.Type.e_Widget)
{
annot.Flatten(page);
}
}
}
}
doc.Save(output_path + "forms_test1_flattened.pdf", 0);
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
}
public void AdhocTest()
{
PDFDoc doc = new PDFDoc(GetTestPdf(SamplePdf));
// Ad-hoc field added for signing the PDF
var signatureField = doc.FieldCreate("sample-field-name", Field.Type.e_signature, "signer name");
signatureField.SetValue("Signature Name");
var digitalSignatureField = new DigitalSignatureField(signatureField);
// Before the rest of the lines or else it fails due to dictionary being empty
digitalSignatureField.SignOnNextSave(GetCertificatePath("pdf-signing.pfx"), CertPassword);
digitalSignatureField.SetReason("reason");
digitalSignatureField.SetContactInfo("*****@*****.**");
digitalSignatureField.SetLocation("location");
digitalSignatureField.SetFieldPermissions(DigitalSignatureField.FieldPermissions.e_include, new string[0]);
digitalSignatureField.SetDocumentPermissions(DigitalSignatureField.DocumentPermissions
.e_formfilling_signing_allowed);
// Save file
var temporaryFile = Path.GetTempFileName();
doc.Save(temporaryFile, pdftron.SDF.SDFDoc.SaveOptions.e_incremental);
// VALIDATE
var result = new PDFDoc(temporaryFile);
var verificationOptions = new VerificationOptions(VerificationOptions.SignatureVerificationSecurityLevel
.e_compatibility_and_archiving);
// Using filepath/password directly makes it fail on adding trusted cert
// THIS ONE FAILS:
// verificationOptions.AddTrustedCertificate(GetCertificatePath("pdf-signing.crt"));
var x509 = new X509Certificate(GetCertificatePath("pdf-signing.pfx"), CertPassword);
verificationOptions.AddTrustedCertificate(x509.GetRawCertData());
DigitalSignatureFieldIterator signatureFieldIterator = result.GetDigitalSignatureFieldIterator();
for (; signatureFieldIterator.HasNext(); signatureFieldIterator.Next())
{
var dsField = signatureFieldIterator.Current();
var verificationResult = dsField.Verify(verificationOptions);
var status = verificationResult.GetTrustStatus();
var certCount = dsField.GetCertCount();
Console.WriteLine($"Verification status {status}");
Console.WriteLine($"Digest status {verificationResult.GetDigestStatus()}");
Console.WriteLine($"Digest document status {verificationResult.GetDocumentStatus()}");
Console.WriteLine($"Verification status {verificationResult.GetVerificationStatus()}");
Console.WriteLine($"Cert count: {certCount}");
Console.WriteLine($"Signature Name{dsField.GetSignatureName()}");
var sigTime = dsField.GetSigningTime();
Console.WriteLine($"Signing Time: {sigTime.day}/{sigTime.month}/{sigTime.year} {sigTime.hour}:{sigTime.minute}.{sigTime.second}");
Assert.True(status != VerificationResult.TrustStatus.e_untrusted, "Unexpected status e_untrusted");
Assert.True(certCount > 0, "DigitalSignatureField should have a certificate");
}
}
