问题描述
我正在尝试将给定 PDF 文档的每一页都保存为 SVG 文件。与非常流行的 SVG 转 PDF 相比,关于该主题的信息似乎很少。
是否有使用 PDFBox、Batik 或标准库功能的任意组合来执行此操作的简单方法?
解决方法
这里有一些代码可以保存 PDF 的所有页面,我可能从这里或 from batik itself 获得。
try (PDDocument pdfboxDocument = PDDocument.load(new File(dir,PDFFILE)))
{
PDFRenderer r = new PDFRenderer(pdfboxDocument);
for (int i = 0; i < pdfboxDocument.getNumberOfPages(); ++i)
{
String svgNS = "http://www.w3.org/2000/svg";
DOMImplementation impl = GenericDOMImplementation.getDOMImplementation();
Document myFactory = impl.createDocument(svgNS,"svg",null);
SVGGeneratorContext ctx = SVGGeneratorContext.createDefault(myFactory);
ctx.setEmbeddedFontsOn(true);
SVGGraphics2D g2d = new SVGGraphics2D(ctx,true);
r.renderPageToGraphics(i,g2d);
String filename = "test-" + (i + 1) + ".svg";
try (Writer out = new OutputStreamWriter(new FileOutputStream(new File(dir,filename)),"UTF-8"))
{
g2d.stream(out,true);
}
}
}
pom.xml 摘录:
<dependencies>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-svggen</artifactId>
<version>${batik.version}</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-codec</artifactId>
<version>${batik.version}</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-dom</artifactId>
<version>${batik.version}</version>
</dependency>
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox-app</artifactId>
<version>2.0.22</version>
</dependency>
<dependency>
<groupId>com.github.jai-imageio</groupId>
<artifactId>jai-imageio-core</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>com.github.jai-imageio</groupId>
<artifactId>jai-imageio-jpeg2000</artifactId>
<version>1.4.0</version>
</dependency>
</dependencies>