I was trying to convert a HTML file to PDF using XMLWorker of iText API. The
HTML content is obtained during runtime from freemarker template (attached
here) by passing a datamap. The obtained HTML content is converted to string
and finally to inputstream as shown in below method.
private ByteArrayOutputStream convertToPDF(Document document,
String pathToTemplate, Map<String, String> dataMap)
throws FileNotFoundException, IOException,
DocumentException,
TemplateException {
ClassTemplateLoader ctl = new ClassTemplateLoader(getClass(),
"/");
StringWriter sWriter = new StringWriter();
Configuration cfg = new Configuration();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
cfg.setTemplateLoader(ctl);
Template templateToProcess = cfg.getTemplate(pathToTemplate);
templateToProcess.process(dataMap, sWriter);
PdfWriter writer = PdfWriter.getInstance(document, baos);
document.open();
System.out.println("sWriter.toString()"+sWriter.toString());
byte[] barray = sWriter.toString().getBytes();
ByteArrayInputStream bais = new ByteArrayInputStream(barray);
// convert the HTML with the built-in convenience method
XMLWorkerHelper.getInstance().parseXHtml(writer, document,
bais);
document.close();
return baos;
}
The outputstream that was returned from above method is then used to display
the PDF document in browser. I am able to generate the PDF successfully.But
then I will have to show few checkboxes, realizing that XMLWorker doesn't
support input fields I switched to Unicode ballot box character(☐). However,
the XML Worker parser ignores these characters. I have tried to copy the
character itself as well as few other codes in template. Please refer to the
attached template and PDF files. Any quick help is appreciated!
test.ftl <http://itext-general.2136553.n4.nabble.com/file/n4659151/test.ftl>
output.pdf
<http://itext-general.2136553.n4.nabble.com/file/n4659151/output.pdf>
Ballot box
reference:http://www.fileformat.info/info/unicode/char/2610/index.htm
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