Aspose.PDF for Java系列7-转化PDF文档为PowerPoint_java pdf转ppt

Aspose.PDF for Java系列7-转化PDF文档为PowerPoint

转化为微软PowerPoint

Aspose.PDF for Java让你追踪PDF转化为PPTX的进度。Aspose.Slides提供了创建并且操作PPT/PPTX展示，同时也提供了将PPT/PPTX转化为PDF的功能。在将PDF转化为PPT/PPTX过程中，PDF文件的每一页将会被转化为单独的幻灯片，文本会被渲染成可编辑的Text。主要使用到的类是PptxSaveOptions，它会以参数的形式传递给Document.save()方法。

具体代码如下：

package com.aspose.pdf.examples;

import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;

import com.aspose.pdf.*;

public final class ConvertPDFtoPPTX {

    private ConvertPDFtoPPTX() {

    }

    private static Path _dataDir = Paths.get("/home/admin1/pdf-examples/Samples");

    public static void main(String[] args) throws IOException {

        ConvertPDFtoPPTX_Simple();
        ConvertPDFtoPPTX_SlideAsImages();
    }

    public static void ConvertPDFtoPPTX_Simple() {
        String pdfDocumentFileName = Paths.get(_dataDir.toString(), "PDFToPPTX.pdf").toString();
        String pptxDocumentFileName = Paths.get(_dataDir.toString(), "PDFToPPTX_out.pptx").toString();

        // Load PDF document
        Document doc = new Document(pdfDocumentFileName);

        // Instantiate PptxSaveOptions instance
        PptxSaveOptions pptx_save = new PptxSaveOptions();

        // Save the output in PPTX format
        doc.save(pptxDocumentFileName, pptx_save);
    }
}
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转化PDF为图片幻灯片的PPTX

如果想要将可搜索的PDF转化为图片的PPTX，而不是可选择的文本，可通过Aspose.PDF.PptxSaveOptions类的。需要设置PptxSaveOptions的SlidesAsImages属性为true。

具体代码如下：

    public static void ConvertPDFtoPPTX_SlideAsImages() {
        String pdfDocumentFileName = Paths.get(_dataDir.toString(), "PDFToPPTX.pdf").toString();
        String pptxDocumentFileName = Paths.get(_dataDir.toString(), "PDFToPPTX_out.pptx").toString();

        // Load PDF document
        Document doc = new Document(pdfDocumentFileName);
        // Instantiate PptxSaveOptions instance
        PptxSaveOptions pptx_save = new PptxSaveOptions();
        // Save the output in PPTX format
        pptx_save.setSlidesAsImages(true);

        doc.save(pptxDocumentFileName, pptx_save);
    }

    public static void ConvertPDFtoPPTX_ProgresDetails() {
        String pdfDocumentFileName = Paths.get(_dataDir.toString(), "PDFToPPTX.pdf").toString();
        String pptxDocumentFileName = Paths.get(_dataDir.toString(), "PDFToPPTX_out.pptx").toString();

        // Load PDF document
        Document doc = new Document(pdfDocumentFileName);

        // Instantiate PptxSaveOptions instance
        PptxSaveOptions pptx_save = new PptxSaveOptions();

        // Specify Custom Progress Handler
        pptx_save.setCustomProgressHandler(new ShowProgressOnConsole());

        // Save the output in PPTX format
        doc.save(pptxDocumentFileName, pptx_save);
    }
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用Aspose.PDF for Java在控制台展示进度

具体代码如下：

package com.aspose.pdf.examples;

import java.time.LocalDateTime;

import com.aspose.pdf.ProgressEventType;
import com.aspose.pdf.UnifiedSaveOptions.ConversionProgressEventHandler;
import com.aspose.pdf.UnifiedSaveOptions.ProgressEventHandlerInfo;

class ShowProgressOnConsole extends ConversionProgressEventHandler{

    @Override
    public void invoke(ProgressEventHandlerInfo eventInfo) {        
        switch (eventInfo.EventType) {
            case ProgressEventType.TotalProgress:
                System.out.println(
                        String.format("%s  - Conversion progress : %d %%.", LocalDateTime.now().toString(), eventInfo.Value));
                break;
            case ProgressEventType.ResultPageCreated:
                System.out.println(String.format("%s  - Result page's %s of %d layout created.", LocalDateTime.now().toString(),
                        eventInfo.Value, eventInfo.MaxValue));
                break;
            case ProgressEventType.ResultPageSaved:
                System.out.println(String.format("%s  - Result page %d of %d exported.", LocalDateTime.now(), eventInfo.Value, eventInfo.MaxValue));
                break;
            case ProgressEventType.SourcePageAnalysed:
                System.out.println(String.format("%s  - Source page %d of %d analyzed.", LocalDateTime.now(),  eventInfo.Value, eventInfo.MaxValue));
                break;
            default:
                break;
        }
    }
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PPTX转化的详细进度

Aspose.Pdf.PptxSaveOptions类提供了CustomProgressHandler属性，它可以追踪转化的详细进度。

具体代码如下：

package com.aspose.pdf.examples;

import java.time.LocalDateTime;

import com.aspose.pdf.ProgressEventType;
import com.aspose.pdf.UnifiedSaveOptions.ConversionProgressEventHandler;
import com.aspose.pdf.UnifiedSaveOptions.ProgressEventHandlerInfo;

class ShowProgressOnConsole extends ConversionProgressEventHandler{

    @Override
    public void invoke(ProgressEventHandlerInfo eventInfo) {        
        switch (eventInfo.EventType) {
            case ProgressEventType.TotalProgress:
                System.out.println(
                        String.format("%s  - Conversion progress : %d %%.", LocalDateTime.now().toString(), eventInfo.Value));
                break;
            case ProgressEventType.ResultPageCreated:
                System.out.println(String.format("%s  - Result page's %s of %d layout created.", LocalDateTime.now().toString(),
                        eventInfo.Value, eventInfo.MaxValue));
                break;
            case ProgressEventType.ResultPageSaved:
                System.out.println(String.format("%s  - Result page %d of %d exported.", LocalDateTime.now(), eventInfo.Value, eventInfo.MaxValue));
                break;
            case ProgressEventType.SourcePageAnalysed:
                System.out.println(String.format("%s  - Source page %d of %d analyzed.", LocalDateTime.now(),  eventInfo.Value, eventInfo.MaxValue));
                break;
            default:
                break;
        }
    }

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