How do I use custom fonts for AcroForm fields in a PDF generated from XHTML with Flying Saucer and OpenPDF?
Question
I seem to have a problem that I'm unable to solve on my own. I'm using flyingsaucer-9.1.20 with openpdf-1.3.22 to generate PDFs from an XHTML source.
My customer's CI demands Verdana as font for all their documents. So I embedded the font and created the PDF as shown in the following example:
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(xhtmlDoc);
renderer.getFontResolver().addFont(fontDir + "verdana.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
renderer.layout();
renderer.createPDF(outputStream);
And here is a sample XHTML source:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
body {
font-size: 7.5pt;
font-family: Verdana;
}
input {
font-size: 7.5pt;
width: 500px;
height: 15px;
font-family: Verdana;
}
</style>
</head>
<body>
TestField: <input type="text" value="Test"></input>
<p>This is an example Text</p>
</body>
</html>
This is how the generated PDF file looks like in Adobe Acrobat Reader DC:
So far so good, it uses my embedded font, but as soon as I click the input field, font changes and after editing, it stays that way:
When I open the PDF in Chrome and click the input field, it looks like this:
Mostly blanks and sometimes some random letters as seen in this example from my actual project:
It looks like there is some kind of encoding issue and Adobe Acrobat Reader falls back to its default font. When I use one of the standard fonts from OpenPDF it works just fine. I've been struggling with this problem for some days now and I just can't wrap my head around it.
Am I missing something?
1 answers
solution1
2 ACCPTED 2020-11-20 14:14:02
I managed to resolve this issue by changing
renderer.getFontResolver().addFont(fontDir + "verdana.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
to
renderer.getFontResolver().addFont(fontDir + "verdana.ttf", BaseFont.CP1257, BaseFont.EMBEDDED);
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