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aspose实现Office转Pdf关键代码：

jar包：

aspose-words-14.6.0.jar

aspose-cells-10.8.jar

aspose.slides-14.4.0.jar

aspose-diagram-2.1.0.jar

protected void realTransform(InputStream in, OutputStream out) throws IOException

{

String lowerFileName = this.fileName.toLowerCase();

try {

if ((lowerFileName.endsWith(".xls")) || (lowerFileName.endsWith(".xlsx")) || (lowerFileName.endsWith(".csv"))) {

Workbook workbook = new Workbook(in);

workbook.save(out, 13);

} else if ((lowerFileName.endsWith(".doc")) || (lowerFileName.endsWith(".docx")) || (lowerFileName.endsWith(".rtf"))) {

Document doc = new Document(in);

doc.save(out, 40);

} else if ((lowerFileName.endsWith(".ppt")) || (lowerFileName.endsWith(".pptx")) || (lowerFileName.endsWith(".pps")) || (lowerFileName.endsWith(".ppsx")))

{

Presentation ppt = new Presentation(in);

ppt.save(out, 1);

} else if ((lowerFileName.endsWith(".vdx")) || (lowerFileName.endsWith(".vsx")) || (lowerFileName.endsWith(".vtx")) || (lowerFileName.endsWith(".vsd")))

{

Diagram visio = new Diagram(in);

visio.save(out, 8);

}

} catch (Exception ex) {

throw new RuntimeException(ex);

}

}

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