Java – Using sun PDF Renderer to display PDFs with embedded fonts

javapdf

I'm having trouble using Sun's PDF Renderer package to view PDFs with embedded fonts. I have the following code which creates a BufferedImage out of every page of a PDF for viewing in my application, and it works fine when there are no embedded fonts. However, when the PDF has embedded fonts, it shows no text. Any ideas? Also, it opens fine in Adobe's PDF viewer.

File f = new File("C:\\test.pdf");
FileChannel fc = new RandomAccessFile(f, "r").getChannel();
PDFFile pdfFile = new PDFFile(fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size()));
for(int x=0; x<pdfFile.getNumPages(); x++) {
    try {
        BufferedImage bi = (BufferedImage)pdfFile.getPage(x+1).getImage(
            (int)pdfFile.getPage(x+1).getWidth(),
            (int)pdfFile.getPage(x+1).getHeight(),
            new Rectangle((int)pdfFile.getPage(x+1).getWidth(),
            (int)pdfFile.getPage(x+1).getHeight()),
             null, true, true);
    }
    catch (Exception e) {
        e.printStackTrace();
    }
}

Best Answer

I figured this out by changing PDF renders from PDFRenderer to PDFBox, which works much better. More info is available here.

Related Solutions

Java – How to create an executable JAR with dependencies using Maven

<build>
  <plugins>
    <plugin>
      <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <archive>
          <manifest>
            <mainClass>fully.qualified.MainClass</mainClass>
          </manifest>
        </archive>
        <descriptorRefs>
          <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
      </configuration>
    </plugin>
  </plugins>
</build>

and you run it with

mvn clean compile assembly:single

Compile goal should be added before assembly:single or otherwise the code on your own project is not included.

See more details in comments.

Commonly this goal is tied to a build phase to execute automatically. This ensures the JAR is built when executing mvn install or performing a deployment/release.

<plugin>
  <artifactId>maven-assembly-plugin</artifactId>
  <configuration>
    <archive>
      <manifest>
        <mainClass>fully.qualified.MainClass</mainClass>
      </manifest>
    </archive>
    <descriptorRefs>
      <descriptorRef>jar-with-dependencies</descriptorRef>
    </descriptorRefs>
  </configuration>
  <executions>
    <execution>
      <id>make-assembly</id> <!-- this is used for inheritance merges -->
      <phase>package</phase> <!-- bind to the packaging phase -->
      <goals>
        <goal>single</goal>
      </goals>
    </execution>
  </executions>
</plugin>

Javascript – Generating PDF files with JavaScript

I've just written a library called jsPDF which generates PDFs using Javascript alone. It's still very young, and I'll be adding features and bug fixes soon. Also got a few ideas for workarounds in browsers that do not support Data URIs. It's licensed under a liberal MIT license.

I came across this question before I started writing it and thought I'd come back and let you know :)

Generate PDFs in Javascript

Example create a "Hello World" PDF file.

// Default export is a4 paper, portrait, using milimeters for units
var doc = new jsPDF()

doc.text('Hello world!', 10, 10)
doc.save('a4.pdf')

<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.5/jspdf.debug.js"></script>

Best Answer

Related Solutions

Java – How to create an executable JAR with dependencies using Maven

Javascript – Generating PDF files with JavaScript

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