如何使用OpenPdf将HTML转换为Pdf [英] How to convert HTML to Pdf with OpenPdf

问题描述

如何使用 OpenPDF 将HTML转换为PDF?

How can I convert an HTML to PDF with OpenPDF?

据我所知，OpenPdf是Itext 4的一个分支.不幸的是，我找不到Itext 4文档.

For what I know, OpenPdf is a fork of Itext 4. Unluckily I can't find Itext 4 documentation.

推荐答案

好吧，看来您无法仅使用OpenPDF直接完成此操作，您必须使用 flying-saucer-pdf-openpdf ，然后使用它.一个例子:

Ok,it seems you can't do it directly with only OpenPDF, you have to use Flying Saucer: get flying-saucer-pdf-openpdf and then use it. An example:

String inputFile = "my.xhtml";
String outputFile = "generated.pdf";

String url = new File(inputFile).toURI().toURL().toString();

ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(url);
renderer.layout();

try (OutputStream os = Files.newOutputStream(Paths.get(outputFile))) {
    renderer.createPDF(os);
}

来源.

PS:FlyingSaucer需要XHTML语法.如果您的HTML文件有问题，则可以使用 Jsoup :

PS: FlyingSaucer expects XHTML syntax. If you have some problems with yout HTML file, you could use Jsoup:

String inputFile = "my.html";
String outputFile = "generated.pdf";

String html = new String(Files.readAllBytes(Paths.get(inputFile)));
final Document document = Jsoup.parse(html);
document.outputSettings().syntax(Document.OutputSettings.Syntax.xml);

ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(document.html());
renderer.layout();

try (OutputStream os = Files.newOutputStream(Paths.get(outputFile))) {
    renderer.createPDF(os);
}

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