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社区首页 >问答首页 >PDF导出为Docx4j /A-1b- base14字体嵌入

问PDF导出为Docx4j /A-1b- base14字体嵌入
EN

Stack Overflow用户
提问于 2021-05-26 02:24:00
回答 1查看 80关注 0票数 1

我需要使用Apache FOP后端将一个docx文档导出到Ubuntu服务器上的PDF/A-1b。

该文件并不花哨，它使用了基本的windows字体Calibri，Courier New，Times New Roman，Symbol，Wingdings。PDF/A-1b配置文件要求嵌入所有字体，包括标准的base-14字体，因此我从/usr/share/ fonts / Type1 /urw-base35中提取了ubuntuType1字体，并且在/home/luca/Desktop/ubuntufonts/路径中有14个.pfb和14个.afm文件。

我认为我设置的一切都是正确的，但是启用A-1b配置文件会导致以下异常：

代码语言：javascript
复制
Caused by: java.io.FileNotFoundException: Neither an AFM nor a PFM file was found for NimbusRoman-BoldItalic.pfb
    at org.apache.fop.fonts.type1.Type1FontLoader.read(Type1FontLoader.java:147)
    at org.apache.fop.fonts.FontLoader.getFont(FontLoader.java:126)
    at org.apache.fop.fonts.FontLoader.loadFont(FontLoader.java:110)
    at org.apache.fop.fonts.LazyFont.load(LazyFont.java:119)
...
 Caused by: java.lang.RuntimeException: Failed to read font file NimbusRoman-BoldItalic.pfb
    at org.apache.fop.fonts.LazyFont.load(LazyFont.java:132)
    at org.apache.fop.fonts.LazyFont.hasChar(LazyFont.java:179)
    at org.apache.fop.fonts.Font.hasChar(Font.java:278)
    at org.apache.fop.fonts.FontSelector.selectFontForCharacter(FontSelector.java:47)
    at org.apache.fop.fonts.FontSelector.selectFontForCharacterInText(FontSelector.java:85)
    at org.apache.fop.layoutmgr.inline.TextLayoutManager.initialize(TextLayoutManager.java:162)
    at org.apache.fop.layoutmgr.AbstractLayoutManager.getChildLM(AbstractLayoutManager.java:118)

但是文件就在那里：

代码语言：javascript
复制
luca@luca-vm:~/Desktop/ubuntufonts$ ls
D050000L.afm                 NimbusRoman-Italic.afm
D050000L.pfb                 NimbusRoman-Italic.pfb
NimbusMonoPS-Bold.afm        NimbusRoman-Regular.afm
NimbusMonoPS-BoldItalic.afm  NimbusRoman-Regular.pfb
NimbusMonoPS-BoldItalic.pfb  NimbusSans-Bold.afm
NimbusMonoPS-Bold.pfb        NimbusSans-BoldItalic.afm
NimbusMonoPS-Italic.afm      NimbusSans-BoldItalic.pfb
NimbusMonoPS-Italic.pfb      NimbusSans-Bold.pfb
NimbusMonoPS-Regular.afm     NimbusSans-Italic.afm
NimbusMonoPS-Regular.pfb     NimbusSans-Italic.pfb
NimbusRoman-Bold.afm         NimbusSans-Regular.afm
NimbusRoman-BoldItalic.afm   NimbusSans-Regular.pfb
NimbusRoman-BoldItalic.pfb   StandardSymbolsPS.afm
NimbusRoman-Bold.pfb         StandardSymbolsPS.pfb

从web搜索来看，继续的方法似乎是创建一个fop.xml配置文件，将字体名称映射到我提取的文件。这是我准备的文件：

代码语言：javascript
复制
<fop version="1.0">
    <font-base>/home/luca/Desktop/ubuntufonts/</font-base>
    <renderers>
        <renderer mime="application/pdf">
            <fonts>
                <font embed-url="NimbusSans-Regular.pfb" embedding-mode="full">
                    <font-triplet name="Helvetica" style="normal" weight="normal" />
                    <font-triplet name="Calibri" style="normal" weight="normal" />
                </font>
                <font embed-url="NimbusSans-Bold.pfb" embedding-mode="full">
                    <font-triplet name="Helvetica" style="normal" weight="bold" />
                    <font-triplet name="Calibri" style="normal" weight="bold" />
                </font>
                <font embed-url="NimbusSans-Italic.pfb" embedding-mode="full">
                    <font-triplet name="Helvetica" style="italic" weight="normal" />
                    <font-triplet name="Calibri" style="italic" weight="normal" />
                </font>
                <font embed-url="NimbusSans-BoldItalic.pfb" embedding-mode="full">
                    <font-triplet name="Helvetica" style="italic" weight="bold" />
                    <font-triplet name="Calibri" style="italic" weight="bold" />
                </font>

                <font embed-url="NimbusRoman-Regular.pfb" embedding-mode="full">
                    <font-triplet name="Times" style="normal" weight="normal" />
                    <font-triplet name="Times New Roman" style="normal" weight="normal" />
                </font>
                <font embed-url="NimbusRoman-Bold.pfb" embedding-mode="full">
                    <font-triplet name="Times" style="normal" weight="bold" />
                    <font-triplet name="Times New Roman" style="normal" weight="normal" />
                </font>
                <font embed-url="NimbusRoman-Italic.pfb" embedding-mode="full">
                    <font-triplet name="Times" style="italic" weight="normal" />
                    <font-triplet name="Times New Roman" style="normal" weight="normal" />
                </font>
                <font embed-url="NimbusRoman-BoldItalic.pfb" embedding-mode="full">
                    <font-triplet name="Times" style="italic" weight="bold" />
                    <font-triplet name="Times New Roman" style="normal" weight="normal" />
                </font>

                <font embed-url="NimbusMonoPS-Regular.pfb" embedding-mode="full">
                    <font-triplet name="Courier" style="normal" weight="normal" />
                    <font-triplet name="Courier New" style="normal" weight="normal" />
                </font>
                <font embed-url="NimbusMonoPS-Bold.pfb" embedding-mode="full">
                    <font-triplet name="Courier" style="normal" weight="bold" />
                    <font-triplet name="Courier New" style="normal" weight="bold" />
                </font>
                <font embed-url="NimbusMonoPS-Italic.pfb" embedding-mode="full">
                    <font-triplet name="Courier" style="italic" weight="normal" />
                    <font-triplet name="Courier New" style="italic" weight="normal" />
                </font>
                <font embed-url="NimbusMonoPS-BoldItalic.pfb" embedding-mode="full">
                    <font-triplet name="Courier" style="italic" weight="bold" />
                    <font-triplet name="Courier New" style="italic" weight="bold" />
                </font>

                <font embed-url="StandardSymbolsPS.pfb" embedding-mode="full">
                    <font-triplet name="Symbol" style="normal" weight="normal" />
                    <font-triplet name="Symbol" style="normal" weight="bold" />
                </font>

                <font embed-url="D050000L.pfb" embedding-mode="full">
                    <font-triplet name="ZapfDingbats" style="normal" weight="normal" />
                    <font-triplet name="ZapfDingbats" style="normal" weight="bold" />
                </font>
            </fonts>
        </renderer>
    </renderers>
</fop>

这是我使用的最终转换代码：

代码语言：javascript
复制
        // Document loading (required)
        WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.load(classPathResource.getFile());

        // Set up font mapper (optional)
        Mapper fontMapper = new IdentityPlusMapper();
        wordMLPackage.setFontMapper(fontMapper);

        // FO exporter setup (required)
        // .. the FOSettings object
        String fopConfig = Files.readString(new ClassPathResource("fop.xml").getFile().toPath());
        FOSettings foSettings = Docx4J.createFOSettings();
        foSettings.setApacheFopConfiguration(fopConfig);
        foSettings.setOpcPackage(wordMLPackage);

        FOUserAgent foUserAgent = FORendererApacheFOP.getFOUserAgent(foSettings);
        foUserAgent.getRendererOptions().put("pdf-a-mode", "PDF/A-1b");

        // PDF/A-1a, PDF/A-2a and PDF/A-3a require accessibility to be enabled
        // see further https://stackoverflow.com/a/54587413/1031689
        foUserAgent.setAccessibility(true); // suppress "missing language information" messages from FOUserAgent .processEvent

        ByteArrayOutputStream os = new ByteArrayOutputStream();
        Docx4J.toFO(foSettings, os, Docx4J.FLAG_EXPORT_PREFER_XSL);

        // Clean up, so any ObfuscatedFontPart temp files can be deleted 
        if (wordMLPackage.getMainDocumentPart().getFontTablePart()!=null) {
            wordMLPackage.getMainDocumentPart().getFontTablePart().deleteEmbeddedFontTempFiles();
        }       
        // This would also do it, via finalize() methods
        foSettings = null;
        wordMLPackage = null;

我还尝试在Word文档中直接嵌入文档字体，并在不同的尝试之间删除fop缓存，但这些操作都没有解决问题。

有什么办法解决这个问题吗？

pdf
apache-fop
docx4j
EN

回答 1

Stack Overflow用户

发布于 2021-05-26 06:08:50

在浪费了两天多的时间后找到的。出于某种原因，该元素必须以方案作为前缀：

代码语言：javascript
复制
<font-base>file:/home/luca/Desktop/ubuntufonts/</font-base>

现在，我也想为未来沮丧的读者指出，实际上没有理由使用Type1字体来映射Base14字体，所以帮你自己一个忙，使用OTF字体来映射它们(在我的Ubuntu上，他们在/usr/share/fonts/opentype/urw-base35)，所以没有必要额外的AFM/PFM文件查找。

这是我的最后一个xml配置文件：

代码语言：javascript
复制
<fop version="1.0">
    <font-base>file:/home/luca/Desktop/ubuntuttf/</font-base>
    <use-cache>false</use-cache>
    <strict-configuration>true</strict-configuration>
    <renderers>
        <renderer mime="application/pdf">
            <fonts>
                <font embed-url="NimbusSans-Regular.otf">
                    <font-triplet name="Helvetica" style="normal" weight="normal" />
                    <font-triplet name="Calibri" style="normal" weight="normal" />
                    <font-triplet name="sans-serif" style="normal" weight="normal"/>
                    <font-triplet name="SansSerif" style="normal" weight="normal"/>
                </font>
                <font embed-url="NimbusSans-Bold.otf">
                    <font-triplet name="Helvetica" style="normal" weight="bold" />
                    <font-triplet name="Calibri" style="normal" weight="bold" />
                    <font-triplet name="sans-serif" style="normal" weight="bold"/>
                    <font-triplet name="SansSerif" style="normal" weight="bold"/>
                </font>
                <font embed-url="NimbusSans-Italic.otf">
                    <font-triplet name="Helvetica" style="italic" weight="normal" />
                    <font-triplet name="Calibri" style="italic" weight="normal" />
                    <font-triplet name="sans-serif" style="italic" weight="normal"/>
                    <font-triplet name="SansSerif" style="italic" weight="normal"/>
                </font>
                <font embed-url="NimbusSans-BoldItalic.otf">
                    <font-triplet name="Helvetica" style="italic" weight="bold" />
                    <font-triplet name="Calibri" style="italic" weight="bold" />
                    <font-triplet name="sans-serif" style="italic" weight="bold"/>
                    <font-triplet name="SansSerif" style="italic" weight="bold"/>
                </font>
    
                <font embed-url="NimbusRoman-Regular.otf">
                    <font-triplet name="Times" style="normal" weight="normal" />
                    <font-triplet name="Times New Roman" style="normal" weight="normal" />
                    <font-triplet name="serif" style="normal" weight="normal"/>
                    <font-triplet name="any" style="normal" weight="normal"/>
                </font>
                <font embed-url="NimbusRoman-Bold.otf">
                    <font-triplet name="Times" style="normal" weight="bold" />
                    <font-triplet name="Times New Roman" style="normal" weight="bold" />
                    <font-triplet name="serif" style="normal" weight="bold"/>
                    <font-triplet name="any" style="normal" weight="bold"/>
                </font>
                <font embed-url="NimbusRoman-Italic.otf">
                    <font-triplet name="Times" style="italic" weight="normal" />
                    <font-triplet name="Times New Roman" style="italic" weight="normal" />
                    <font-triplet name="serif" style="italic" weight="normal"/>
                    <font-triplet name="any" style="italic" weight="normal"/>
                </font>
                <font embed-url="NimbusRoman-BoldItalic.otf">
                    <font-triplet name="Times" style="italic" weight="bold" />
                    <font-triplet name="Times New Roman" style="italic" weight="bold" />
                    <font-triplet name="serif" style="italic" weight="bold"/>
                    <font-triplet name="any" style="italic" weight="bold"/>
                </font>
    
                <font embed-url="NimbusMonoPS-Regular.otf">
                    <font-triplet name="Courier" style="normal" weight="normal" />
                    <font-triplet name="Courier New" style="normal" weight="normal" />
                    <font-triplet name="monospace" style="normal" weight="normal"/>
                </font>
                <font embed-url="NimbusMonoPS-Italic.otf">
                    <font-triplet name="Courier" style="normal" weight="bold" />
                    <font-triplet name="Courier New" style="normal" weight="bold" />
                    <font-triplet name="monospace" style="normal" weight="bold"/>
                </font>
                <font embed-url="NimbusMonoPS-Bold.otf">
                    <font-triplet name="Courier" style="italic" weight="normal" />
                    <font-triplet name="Courier New" style="italic" weight="normal" />
                    <font-triplet name="monospace" style="italic" weight="normal"/>
                </font>
                <font embed-url="NimbusMonoPS-BoldItalic.otf">
                    <font-triplet name="Courier" style="italic" weight="bold" />
                    <font-triplet name="Courier New" style="italic" weight="bold" />
                    <font-triplet name="monospace" style="italic" weight="bold"/>
                </font>
    
                <font embed-url="StandardSymbolsPS.otf">
                    <font-triplet name="Symbol" style="normal" weight="normal" />
                    <font-triplet name="Symbol" style="normal" weight="bold" />
                </font>
    
                <font embed-url="D050000L.otf">
                    <font-triplet name="ZapfDingbats" style="normal" weight="normal" />
                    <font-triplet name="ZapfDingbats" style="normal" weight="bold" />
                </font>
            </fonts>
        </renderer>
    </renderers>
</fop>

此外，如果任何人对将字体嵌入到jar/war归档中感兴趣，只需将字体基础元素更改为<font-base>classpath:/fonts/</font-base>，并在/src/main/resources/fonts/下添加字体文件。

票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/67693639

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