How can I convert an HTML to PDF with OpenPDF?
For what I know, OpenPdf is a fork of Itext 4. Unluckily I can't find Itext 4 documentation.
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@AmedeeVanGasse: what about this? mvnrepository.com/artifact/com.lowagie/itext/4.2.0Marco Sulla– Marco Sulla2018-03-17 18:19:15 +00:00Commented Mar 17, 2018 at 18:19
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@AmedeeVanGasse: it was published by Itext Software. See also this: mvnrepository.com/artifact/com.lowagie/itext/4.2.2Marco Sulla– Marco Sulla2018-03-17 18:31:16 +00:00Commented Mar 17, 2018 at 18:31
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iText 4.2.2 was put there by me personally. It is a redirection POM that redirects to the iText 5 release that was current at the time. It's how iText Software regained control over the hijacked groupId, as described in the article linked above.Amedee Van Gasse– Amedee Van Gasse2018-03-17 18:33:39 +00:00Commented Mar 17, 2018 at 18:33
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iText 4.2.0 was published by weiyeh, who was an employee of InProTopia.Amedee Van Gasse– Amedee Van Gasse2018-03-17 18:35:53 +00:00Commented Mar 17, 2018 at 18:35
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@AmedeeVanGasse And this means that "Itext 4 does not exists" is not true. And anyway, definitively you're not helping me, furthermore for personal reasons.Marco Sulla– Marco Sulla2018-03-17 18:40:46 +00:00Commented Mar 17, 2018 at 18:40
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2 Answers
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);
}
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);
}
Comments
Here's a simple Kotlin HTML to PDF. Jsoup is not required.
fun pdfFromHtml(ostream: OutputStream, html: String) {
val renderer = ITextRenderer()
val sharedContext = renderer.sharedContext
sharedContext.isPrint = true
sharedContext.isInteractive = false
renderer.setDocumentFromString(html)
renderer.layout()
renderer.createPDF(ostream)
}
Here's one with Jsoup.
fun pdfFromHtml(ostream:OutputStream, html: String) {
val renderer = ITextRenderer()
val sharedContext = renderer.sharedContext
sharedContext.isPrint = true
sharedContext.isInteractive = false
val document = Jsoup.parse(html)
document.outputSettings().syntax(org.jsoup.nodes.Document.OutputSettings.Syntax.xml)
renderer.setDocumentFromString(document.html())
renderer.layout()
renderer.createPDF(ostream)
}
