Here is an example that will generate a pdf file into c drive.The pdf file consists of the data retrieved from database.You need itext api to run the given code.

<%@page import="java.io.*"%>
<%@page import="java.util.*"%>
<%@page import="com.lowagie.text.*"%>
<%@page import="com.lowagie.text.pdf.*"%>

<%
        try {
            Document document = new Document();
            document.open();
            PdfReader reader = new PdfReader("C:/data.pdf");
            PdfDictionary dictionary = reader.getPageN(1);
            PRIndirectReference reference = (PRIndirectReference) dictionary.get(PdfName.CONTENTS);
            PRStream stream = (PRStream) PdfReader.getPdfObject(reference);
            byte[] bytes = PdfReader.getStreamBytes(stream);
            PRTokeniser tokenizer = new PRTokeniser(bytes);
            StringBuffer buffer = new StringBuffer();
            while (tokenizer.nextToken()) {
                if (tokenizer.getTokenType() == PRTokeniser.TK_STRING) {
                    buffer.append(tokenizer.getStringValue()+" ");
                }
            }
            String test = buffer.toString();
            out.println(test);
        } catch (Exception e) {
        }

%>

Here is an example that will generate a pdf file into c drive.The pdf file consists of the data retrieved from database.You need itext api to run the given code.

1)link.jsp:

<a href="pdf.jsp">Click Here</a>

2)pdf.jsp:

<%@page import="java.io.*"%>
<%@page import="java.util.*"%>
<%@page import="com.lowagie.text.*"%>
<%@page import="com.lowagie.text.pdf.*"%>

<%
        try {
            Document document = new Document();
            document.open();
            PdfReader reader = new PdfReader("C:/data.pdf");
            PdfDictionary dictionary = reader.getPageN(1);
            PRIndirectReference reference = (PRIndirectReference) dictionary.get(PdfName.CONTENTS);
            PRStream stream = (PRStream) PdfReader.getPdfObject(reference);
            byte[] bytes = PdfReader.getStreamBytes(stream);
            PRTokeniser tokenizer = new PRTokeniser(bytes);
            StringBuffer buffer = new StringBuffer();
            while (tokenizer.nextToken()) {
                if (tokenizer.getTokenType() == PRTokeniser.TK_STRING) {
                    buffer.append(tokenizer.getStringValue()+" ");
                }
            }
            String test = buffer.toString();
            out.println(test);
        } catch (Exception e) {
        }

%>