Wsrtjtyk

I am an SQL/ETL(PowerCenter)/bash/Python developer with a very little experience in Java. I have a task - I need to take a .pptx template, customize it and convert to a .pdf file. I've decided to start from the second step, so I took this as an example. I've got latest versions of libraries (iText7 and POI4), so I had to modify this code in order to compile it. I was able to find moved packages in an Import part but then I stuck here:

slideImage = Image.getInstance(img, null);

My new libraries say that getInstance is not supported anymore (cannot find symbol). I'm trying to skip this step and use an analogue of

table.addCell(new PdfPCell(slideImage, true));

which I've changed to

table.addCell(new Cell(img, true));

to add this bufferedImage directly to a cell, it throws conversion errors, like "BufferedImage cannot be converted to int). How can I convert BufferedImage to Image? I read that the 1st is a child of the 2nd, so there's no need to convert it, but it doesn't work. Below I'm providing the code adjusted by me. Thank you in advance!

import java.io.FileOutputStream;

import java.io.*;

import java.io.IOException;





import java.awt.Color;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.geom.AffineTransform;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;



import org.apache.poi.hslf.record.Slide;

import org.apache.poi.sl.usermodel.SlideShow;

import org.apache.poi.xslf.usermodel.XMLSlideShow;

import org.apache.poi.xslf.usermodel.XSLFSlide;



import com.itextpdf.layout.Document;



import com.itextpdf.layout.element.Image;

import com.itextpdf.kernel.geom.Rectangle;

import com.itextpdf.layout.element.Cell;

import com.itextpdf.layout.element.Table;

import com.itextpdf.kernel.pdf.PdfWriter;

import com.itextpdf.kernel.pdf.PdfDocument;

import com.itextpdf.kernel.geom.PageSize;



public void createPdf(String inFileName, String outFileName)

    throws IOException 

{

    FileInputStream inputStream = new FileInputStream(inFileName);

    double zoom = 2;

    AffineTransform at = new AffineTransform();

    at.setToScale(zoom, zoom);



    Table table = new Table(1);

    Dimension pgsize = null;

    Image slideImage = null;

    BufferedImage img = null;



    XMLSlideShow ppt = new XMLSlideShow(inputStream);

    pgsize = ppt.getPageSize();



//  PDF part

//  Initialize PDF writer

    PdfWriter writer = new PdfWriter(outFileName);

//  Initialize PDF document

    PdfDocument pdf = new PdfDocument(writer);

//  Initialize document

    Rectangle srcPageSize = new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight());

    Document doc = new Document(pdf, new PageSize(srcPageSize));



    List<XSLFSlide> slides = ppt.getSlides();

//  writer.open();

//  pdfDocument.open();

    for (XSLFSlide slide : ppt.getSlides()) {

        img = new BufferedImage((int) Math.ceil(pgsize.width * zoom), (int) Math.ceil(pgsize.height * zoom), BufferedImage.TYPE_INT_RGB);

        Graphics2D graphics = img.createGraphics();

        graphics.setTransform(at);



        graphics.setPaint(Color.white);

        graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));

        slide.draw(graphics);

        graphics.getPaint();



//  Original start

//      slideImage = Image.getInstance(img, null);

//      table.addCell(new PdfPCell(slideImage, true));

//  Original end





        table.addCell(new Cell(img, true));    

    }

//  pdfDocument.add(table);

//  pdfDocument.close();

//  pdfWriter.close();

    System.out.println("Powerpoint file converted to PDF successfully");



//  catch (IOException e) 

//  {

//      System.err.println("FileStreamsReadnWrite: " + e);

//  }

}

You may try the following , which uses the current API :

// you need to convert the BufferedImage to a byte array

ByteArrayOutputStream baos = new ByteArrayOutputStream();

ImageIO.write(img, "png", baos);



ImageData image = ImageDataFactory.create(baos.toByteArray());



table.addCell(new Image(image));

There are other interesting methods like ImageDataFactory.create(String filename) .