Question

我尝试使用文档中提供的exemple代码将.fo文件转换为带有Apache FOP 2.1的PDF / a文件。我设法将helloworld.fo文件转换为PDF，但是当我尝试将其转换为PDF /文件时，我收到此错误：

org.apache.fop.pdf.PDFConformanceException: For PDF/A-1a, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Helvetica

这就是为什么我尝试在fop.xconf文件中嵌入字体的原因：



  <fonts>

    <font kerning="yes" embed-url="C:/Users/thinkpad/workspace/FopConverter/Fonts/arial.ttf" name="Arial">
      <font-triplet name="Arial" style="normal" weight="700"/>
    </font>
    <font kerning="yes" embed-url="C:/Users/thinkpad/workspace/FopConverter/Fonts/arialbd.ttf" name="Arial Bold">
      <font-triplet name="Arial" style="normal" weight="bold"/>
    </font>
    <font kerning="yes" embed-url="C:/Users/thinkpad/workspace/FopConverter/Fonts/ariali.ttf" name="Arial Italique">
      <font-triplet name="Arial" style="italic" weight="700"/>
    </font>
    <font kerning="yes" embed-url="C:/Users/thinkpad/workspace/FopConverter/Fonts/arialbi.ttf" name="Helvetica Bold Italique">
      <font-triplet name="Arial" style="italic" weight="bold"/>
    </font>

    <directory>C:\Users\thinkpad\workspace\FopConverter\Fonts</directory>
    <directory>C:\Users\thinkpad\workspace\FopConverter\Fonts\ghostFonts</directory>

   <substitutions>
     <substitution>
       <from font-family="Helvetica" font-weight="700..900"/>
       <to font-family="Arial"/>
     </substitution>
   </substitutions>
   <auto-detect/>
  </fonts>

<fonts> <font-triplet name="Arial" style="normal" weight="700"/> <font-triplet name="Arial" style="normal" weight="bold"/> <font-triplet name="Arial" style="italic" weight="700"/> <font-triplet name="Arial" style="italic" weight="bold"/> <directory>C:\Users\thinkpad\workspace\FopConverter\Fonts</directory> <directory>C:\Users\thinkpad\workspace\FopConverter\Fonts\ghostFonts</directory> <substitutions> <substitution> <from font-family="Helvetica" font-weight="700..900"/> <to font-family="Arial"/> </substitution> </substitutions> <auto-detect/> </fonts>

但即使这样做，我仍然有同样的错误：

我还尝试在org.apache.fop.pdf.PDFConformanceException: For PDF/A-1a, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Helvetica中添加helloworld.fo来修改font-family="Helvetica" font-weight="normal" font-style="normal"，因为有些forum topic表示会这样做，但它并没有改变任何内容。

请帮我解决嵌入字体错误。感谢您阅读此主题。

[编辑]：以下是整个错误消息：

<fo:root">

Answer 1

我可以在几次更改后使用相同的示例文件创建PDF / A输出：

输入FO文件

，我明确地将font-family="Helvetica"（或您喜欢的字体系列）添加到影响所有文字的位置

如果没有这个，即使FOP在没有设置font-family时默认使用Helvetica，显然也无法找到它的配置。

在配置文件中，我将Helvetica字体系列映射到现有字体，例如Arial

<font kerning="yes" embed-url="/Library/Fonts/arial.ttf">
  <font-triplet name="Helvetica" style="normal" weight="normal"/>
</font>

在 Java代码中，我将FOP配置为使用我的配置文件，并将用户代理配置为启用辅助功能

import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.DefaultConfigurationBuilder;
import org.apache.fop.apps.FopFactoryBuilder;

...
DefaultConfigurationBuilder cfgBuilder = new DefaultConfigurationBuilder();
Configuration cfg = cfgBuilder.buildFromFile(new File("/Users/lfurini/fop.xconf"));
FopFactoryBuilder fopFactoryBuilder = new FopFactoryBuilder(new File(".").toURI()).setConfiguration(cfg);
FopFactory fopFactory = fopFactoryBuilder.build();

FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// configure foUserAgent as desired
foUserAgent.setAccessibility(true);
foUserAgent.getRendererOptions().put("pdf-a-mode", "PDF/A-1b");
...

使用Apache FOP Java库转换为PDF / a转换

1 个答案: