如何使用iText7将字体嵌入pdf / a

Question

I'm trying to see how to embed fonts into my pdf/a.
I found a lot of answer but using iTextSharp.
In my cas I use iText7 and all I tried gave me the error:
"All the fonts must be embedded..."

I have a ttf file for my font but I didn't find a way to embed it into my pdf to use it...

Could someone help me?
Thanks in advance

kor6k

Answer 1

As documented in the tutorial and as indicated by the error you mention ("All the fonts must be embedded"), you need to embed the fonts.

You are probably not defining a font, in which case the standard Type 1 font Helvetica will be used. These standard Type 1 fonts are never embedded, hence you need to pick another font.

The example from the tutorial uses the free font FreeSans:

public const String FONT = "resources/font/FreeSans.ttf";

The font object is defined like this:

PdfFont font = PdfFontFactory.CreateFont(FONT, PdfEncodings.WINANSI, true);

This font is used in a Paragraph like this:

Paragraph p = new Paragraph();
p.SetFont(font);
p.Add(new Text("Font is embedded"));
document.Add(p);

This is the C# version. If you need the Java version, take a look at the Java version of the tutorial :

public static final String FONT = "src/main/resources/font/FreeSans.ttf";
PdfFont font = PdfFontFactory.createFont(FONT, PdfEncodings.WINANSI, true);
Paragraph p = new Paragraph();
p.setFont(font);
p.add(new Text("Font is embedded"));
document.add(p);

If you already use this approach, and you still get the error, you probably have some content somewhere for which you didn't define a font that is embedded.