I'm trying to convert html to pdf using the open-html-to-pdf library, but I'm having issues with special characters. Instead of ěščř, only #š## is displayed.
From this issue I understand I need to somehow register a proper font, yet I am left clueless on how to do this.
My code looks like this:
fun main(args: Array<String>) {
val file = File("input.html")
val xdoc = Jsoup.parse(file, "UTF-8")
xdoc.outputSettings().syntax(Document.OutputSettings.Syntax.xml)
val os = FileOutputStream("output.pdf")
val builder = PdfRendererBuilder()
builder.toStream(os)
builder.withW3cDocument(W3CDom().fromJsoup(xdoc), null)
builder.run()
os.close()
}
and the input.html looks like this
<!DOCTYPE html>
<html lang="en">
<body>
<h2>Special characters: ěščř</h2>
</body>
</html>
I am aware I need to use the PdfRendererBuilder().usefont() method, but have not found any way to supply the necessary argument of type FSSupplier<InputStream>, or what it might even be. Can anyone please point me in the right direction?
Edit1: I tried to add the useFont() function as follows:
fun main(args: Array<String>) {
val file = File("sinput.html")
val xdoc = Jsoup.parse(file, "UTF-8")
xdoc.outputSettings().syntax(Document.OutputSettings.Syntax.xml)
val os = FileOutputStream("output.pdf")
val builder = PdfRendererBuilder()
builder.useFont({ File("Roboto-Light.ttf").inputStream() }, "Roboto")
builder.toStream(os)
builder.withW3cDocument(W3CDom().fromJsoup(xdoc), null)
builder.run()
os.close()
}
with the Roboto-Light.ttf present in the project directory, but to no avail. If I use a different font file, the font does not change, so the function call still has to be incorrect.
Edit2: Success! One should not forget to add the necessary style to the html paragraph, so it now looks like this:
<html>
<head>
</head>
<body>
<p style="font-family:Roboto">Special characters: ěščř</p>
</body>
</html>
