将html页面转换为pdf。当我将页面转换为pdf时，html页面内容不适合A4页面。我希望整个html页面转换为pdf而不会丢失任何内容。

我已经拥有将html转换为pdf的代码

String tempOutFileNameXHTML = "/Users/Common/index" + i + DOT + "xhtml";

String tempOutFileNamePDF = "/Users/Common/index" + i + DOT + PDF;

File targetFile = targetFiles.get(i); // gets all the specified html files

CleanerProperties props = new CleanerProperties();

props.setTranslateSpecialEntities(true);

props.setTransResCharsToNCR(true);

props.setOmitComments(true);

//checking of starting and ending tags are in proper

HtmlCleaner htmlCleaner = new HtmlCleaner(props);

TagNode tagNode = htmlCleaner.clean(targetFile);

PrettyXmlSerializer prettyXmlSerializer = new PrettyXmlSerializer(props);

prettyXmlSerializer.writeToFile(tagNode, tempOutFileNameXHTML, "utf-8");

File xhtmlpath = new File(tempOutFileNameXHTML);

File pdfPath = new File(tempOutFileNamePDF);

com.itextpdf.text.Document pdfDocument = null;

PdfWriter pdfWriter = null;

pdfDocument = new com.itextpdf.text.Document(com.itextpdf.text.PageSize.A4); // TODO handle this

pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(pdfPath));

pdfDocument.open();

Font catFont = new Font(Font.FontFamily.TIMES_ROMAN, 25, Font.BOLD);

pdfDocument.add(new Paragraph("Target : " + targetFile.getParentFile().getName(), catFont));

XMLWorkerHelper.getInstance().parseXHtml(pdfWriter, (com.itextpdf.text.Document) pdfDocument,

new FileInputStream(xhtmlpath), null);

pdfDocument.close();

这里的问题是当html页面宽度太长时，它不适合A4尺寸pdf。无论如何缩小或使其成为pdf而没有任何内容丢失。 ？

我怎样才能做到这一点 ？ Html页面可以缩小并转换为pdf？关于如何做到这一点的任何想法？