IText字体不是子集或嵌入 [英] IText font not subsetting or embedding

问题描述

我在大型机平台上并从Windows上传了arial.ttf。我使用了以下代码的字体，但字体在Adobe中没有显示SUBSETTED或EMBEDDED。我甚至试图添加font.getBaseFont强制它嵌入。

I am on the mainframe platform and uploaded the arial.ttf from Windows.
I used the following code for the font, but the font does not show SUBSETTED or EMBEDDED in Adobe.
I even tried to add font.getBaseFont to force it to embed.

它为什么不嵌入或子集？

Any reason why it would not embed or subset?

String font1 = "arial.ttf";                                                
FontFactory.register(font1,"myfont");                                      
BaseFont bf = BaseFont.createFont(font1, BaseFont.IDENTITY_H, true);       
Font font =  FontFactory.getFont("arial");   

font.getBaseFont().setSubset(true);    

Adob​​e doc显示以下字体信息：

Adobe doc show the following font information:

Type truetype
Encoding Ansi
Actual Font: ArialMT
Actual Font type: TrueType

推荐答案

您创建 BaseFont 对象 bf ，但你没有做任何事情。人们可以期望你这样做：

You create a BaseFont object bf, but you aren't doing anything with it. One would expect that you do this:

BaseFont bf = BaseFont.createFont(pathToFont, BaseFont.IDENTITY_H, true);
Font font = new Font(bf, 12);

在这种情况下， font 会确保因为编码是 Identity-H ，所以嵌入了字体的子集，iText总是嵌入带有该编码的字体的子集。

In this case, font would make sure that a subset of the font is embedded because the encoding is Identity-H and iText always embeds a subset of a font with that encoding.

由于你没有对 bf 做任何事情，就好像这条线不存在一样。在这种情况下，我们留下：

As you aren't doing anything with bf, it is as if the line isn't present. In that case, we are left with:

String font1 = "arial.ttf";                                                
FontFactory.register(font1,"myfont");    
Font font =  FontFactory.getFont("arial"); 

假设路径 arial.ttf 是正确的，并且该字体的别名是arial，您现在正在创建一个具有默认编码（Ansi）的字体，默认字体大小（12）和默认嵌入（false）。

Assuming that the path to arial.ttf is correct, and that the alias of that font is "arial", you are now creating a font with the default encoding (Ansi), the default font size (12) and the default embedding (false).

这与Adobe Reader中显示的内容一致。如果你想要嵌入字体的子集，至少需要：

That is in line with what is shown in Adobe Reader. If you want a subset of the font to be embedded, you need at least:

Font font =  FontFactory.getFont("arial", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);

回答你的问题：iText没有嵌入字体的原因是你的事实没有告诉iText嵌入字体。

In answer to your question: the reason why the font is not embedded by iText is the fact that you are not telling iText to embed the font.

这篇关于IText字体不是子集或嵌入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！