Add title to pdf using itext - html

Question

{
Document document = new Document(PageSize.A3, 32, 32, 32, 32);
PdfWriter.getInstance(document, response.getOutputStream());
document.open();
HTMLWorker htmlWorker = new HTMLWorker(document);
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/db", "", "");
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("Select * from test3");
List arrlist = new ArrayList();
while(rs.next()){
String xa =rs.getString("display");
if(xa.equals("1")){
arrlist.add(rs.getString("question_text"));
}
}
Collections.shuffle(arrlist);
for(int i=0;i<5;i++){
String str = (String) arrlist.get(i);
htmlWorker.parse(new StringReader(str));
htmlWorker.parse(new StringReader("<br>"));
}
document.close();
}
Above is a code snippet which gets data from the database and displays on pdf.How do I add a title, logo,date and page no.to this?Please if anyone could help.I am using itext.

Answer 1

Please check out some of the page event examples. Currently, you're creating an unnamed PdfWriter instance. Change this into a named writer instance and declare a page event before opening the document instance:
PdfWriter writer = PdfWriter.getInstance(document, response.getOutputStream());
writer.setPageEvent(new MyPageEvents());
The MyPageEvents class is to be written by you. It needs to implement the PdfPageEvent interface, or, better yet, extend the PdfPageEventHelper class.
Adding a title, logo, date,... in the header is done by implementing the onEndPage() method. Do NOT use the onStartPage() method without reading the documentation!!!
Use these onEndPage() examples for inspiration.
To add an Image, add a member variable img to your page event, and add this to your constructor:
Image img = Image.getInstance(pathToImage);
img.setAbsolutePosition(36, 806);
Then in the onEndPage() method, do this:
writer.getDirectContent().addImage(img);
This will add the image at position x = 36, y = 806 (near the left top of the page). Note that it's important that you don't create a new Image instance for every new page, because that would result in a bloated PDF file. By creating the Image in the constructor of your page event and reusing the object, the image bytes will be present only once in the PDF file.