// ===========================================================================
public void Write(Stream stream)
{
// step 1
using (Document document = new Document()) {
// step 2
PdfWriter writer = PdfWriter.GetInstance(document, stream);
// step 3
document.Open();
// step 4
TextField date = new TextField(
writer, new Rectangle(36, 806, 126, 780), "date"
);
date.BorderColor = new GrayColor(0.2f);
PdfFormField datefield = date.GetTextField();
// enter something that resembles a date for this to work;
// if PDF reader doesn't recognize as a date, the field is cleared
datefield.SetAdditionalActions(
PdfName.V,
PdfAction.JavaScript("AFDate_FormatEx( 'dd-mm-yyyy' );", writer)
);
writer.AddAnnotation(datefield);
TextField name = new TextField(
writer, new Rectangle(130, 806, 256, 780), "name"
);
name.BorderColor = new GrayColor(0.2f);
PdfFormField namefield = name.GetTextField();
namefield.SetAdditionalActions(
PdfName.FO,
PdfAction.JavaScript(
"app.alert('name field got the focus');", writer
)
);
namefield.SetAdditionalActions(
PdfName.BL,
PdfAction.JavaScript("app.alert('name lost the focus');", writer)
);
namefield.SetAdditionalActions(
PdfName.K,
PdfAction.JavaScript(
"event.change = event.change.toUpperCase();", writer
)
);
writer.AddAnnotation(namefield);
}
}
// ---------------------------------------------------------------------------
/**
* Create a pushbutton for a key
* @param writer the PdfWriter
* @param rect the position of the key
* @param btn the label for the key
* @param script the script to be executed when the button is pushed
*/
public void AddPushButton(PdfWriter writer, Rectangle rect,
String btn, String script)
{
float w = rect.Width;
float h = rect.Height;
PdfFormField pushbutton = PdfFormField.CreatePushButton(writer);
pushbutton.FieldName = "btn_" + btn;
pushbutton.SetWidget(rect, PdfAnnotation.HIGHLIGHT_PUSH);
PdfContentByte cb = writer.DirectContent;
pushbutton.SetAppearance(
PdfAnnotation.APPEARANCE_NORMAL,
CreateAppearance(cb, btn, BaseColor.GRAY, w, h)
);
pushbutton.SetAppearance(
PdfAnnotation.APPEARANCE_ROLLOVER,
CreateAppearance(cb, btn, BaseColor.RED, w, h)
);
pushbutton.SetAppearance(
PdfAnnotation.APPEARANCE_DOWN,
CreateAppearance(cb, btn, BaseColor.BLUE, w, h)
);
pushbutton.SetAdditionalActions(
PdfName.U,
PdfAction.JavaScript(script, writer)
);
pushbutton.SetAdditionalActions(
PdfName.E, PdfAction.JavaScript(
"this.showMove('" + btn + "');", writer
)
);
pushbutton.SetAdditionalActions(
PdfName.X, PdfAction.JavaScript(
"this.showMove(' ');", writer
)
);
writer.AddAnnotation(pushbutton);
}
// ---------------------------------------------------------------------------
/**
* Show keys and values passed to the query string with GET
*/
protected void DoGet(byte[] pdf, Stream stream)
{
// We get a resource from our web app
PdfReader reader = new PdfReader(pdf);
// Now we create the PDF
using (PdfStamper stamper = new PdfStamper(reader, stream)) {
// We add a submit button to the existing form
PushbuttonField button = new PushbuttonField(
stamper.Writer, new Rectangle(90, 660, 140, 690), "submit"
);
button.Text = "POST";
button.BackgroundColor = new GrayColor(0.7f);
button.Visibility = PushbuttonField.VISIBLE_BUT_DOES_NOT_PRINT;
PdfFormField submit = button.Field;
submit.Action = PdfAction.CreateSubmitForm(
WebContext.Request.RawUrl, null, 0
);
stamper.AddAnnotation(submit, 1);
// We add an extra field that can be used to upload a file
TextField file = new TextField(
stamper.Writer, new Rectangle(160, 660, 470, 690), "image"
);
file.Options = TextField.FILE_SELECTION;
file.BackgroundColor = new GrayColor(0.9f);
PdfFormField upload = file.GetTextField();
upload.SetAdditionalActions(PdfName.U,
PdfAction.JavaScript(
"this.getField('image').browseForFileToSubmit();"
+ "this.getField('submit').setFocus();",
stamper.Writer
)
);
stamper.AddAnnotation(upload, 1);
}
}