如何在iText7上获取表单字段的字体大小? [英] How to get font size of form field on iText7?
本文介绍了如何在iText7上获取表单字段的字体大小?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何在iText7上获取PDF表单字段的字体大小?
How can I get font size of a PDF form field on iText7?
在iText5上,我可以这样做:
On iText5, I could do it as this:
PdfReader reader = new PdfReader(SRC);
PdfStamper stamper = new PdfStamper(reader, outputStream);
AcroFields fields = stamper.getAcroFields();
AcroFields.Item item = fields.getFieldItem(FIELDNAME);
PdfDictionary merged = item.getMerged(0);
TextField textField = new TextField(null, null, null);
fields.decodeGenericDictionary(merged, textField);
float fontSize = textField.getFontSize();
我无法找到如何在iText7上执行此操作。我怎么能这样做?
I could not find how I can do this on iText7. How can I do this?
推荐答案
我设法做到了。但我不确定这是否是一种直接的方式。
I managed to did it. But I am not sure if this is a straight forward way.
try (PdfDocument readDoc = new PdfDocument(new PdfReader(SRC))) {
PdfAcroForm pdfAcroForm = PdfAcroForm.getAcroForm(readDoc, false);
PdfFormField field = pdfAcroForm.getField(FIELDNAME);
PdfString defaultAppearance = field.getDefaultAppearance(); // like "/MSGothic 9 Tf 0 g"
float fontSize;
if (defaultAppearance != null) {
String[] array = defaultAppearance.toString().split(" ");
if (array.length > 2) {
fontSize = Float.parseFloat(array[1]);
}
}
}
这篇关于如何在iText7上获取表单字段的字体大小?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文