I am attempting to convert PDFs to java.awt.Image objects using the below method:
public Image createImage(DocumentContent docContent, ThumbnailProperties properties) {
PdfConverter converter = new PdfConverter();
converter.bindPdf(new ByteArrayInputStream(docContent.getContent()));
converter.setStartPage(properties.getPageNumber()+1);
converter.setEndPage(properties.getPageNumber()+1);
converter.setResolution(properties.getDpi());
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
converter.doConvert();
if (converter.hasNextImage()) {
converter.getNextImage(outputStream, ImageType.BMP);
}
Image image = ImageIO.read(new ByteArrayInputStream(outputStream.toByteArray()));
return image;
} catch (Exception e) {
throw new ServiceException("Failed to create thumbnail for properties:" + properties, e);
}
}
I have installed JAI 1.1.3 (jai-1_1_3-lib-windows-i586) from here and added jai_codec.jar and jai_core.jar to my CLASSPATH.
Unfortunately, I get the following exception:
java.lang.NoSuchMethodError: com.sun.media.jai.codec.SeekableStream.wrapInputStream(Ljava/io/InputStream;Z)Lcom/sun/media/jai/codec/SeekableStream;
at com.aspose.pdf.kit.jl.b(Unknown Source)
at com.aspose.pdf.kit.li.a(Unknown Source)
at com.aspose.pdf.kit.iu.b(Unknown Source)
at com.aspose.pdf.kit.iu.a(Unknown Source)
at com.aspose.pdf.kit.li.a(Unknown Source)
at com.aspose.pdf.kit.ju.a(Unknown Source)
at com.aspose.pdf.kit.PdfConverter.doConvert(Unknown Source)
at com.sentry.thumbnails.dao.aspose.AsposePdfKitThumbnailGenerator.createImage(AsposePdfKitThumbnailGenerator.java:49)
at com.sentry.thumbnails.dao.aspose.TestAsposePdfKitThumbnailGenerator.testPdftoJpg(TestAsposePdfKitThumbnailGenerator.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)