public PowerPointExtractor(String fileName) throws IOException 
{
		this(new FileInputStream(fileName));
}

Creates a PowerPointExtractor, from a file

Parameters:

fileName - The name of the file to extract from

 public PowerPointExtractor(InputStream iStream) throws IOException 
{
		this(new POIFSFileSystem(iStream));
}

Creates a PowerPointExtractor, from an Input Stream

Parameters:

iStream - The input stream containing the PowerPoint document

 public PowerPointExtractor(POIFSFileSystem fs) throws IOException 
{
		this(new HSLFSlideShow(fs));
}

Creates a PowerPointExtractor, from an open POIFSFileSystem

Parameters:

fs - the POIFSFileSystem containing the PowerPoint document

 public PowerPointExtractor(HSLFSlideShow ss) throws IOException 
{
		super(ss);
		_hslfshow = ss;
		_show = new SlideShow(_hslfshow);
		_slides = _show.getSlides();
}

Creates a PowerPointExtractor, from a HSLFSlideShow

Parameters:

ss - the HSLFSlideShow to extract text from

 public  void close() throws IOException 
{
		_hslfshow.close();
		_hslfshow = null;
		_show = null;
		_slides = null;
}

Shuts down the underlying streams

 public String getNotes() 
{
		return getText(false,true);
}

Fetches all the notes text from the slideshow, but not the slide text

 public String getText() 
{
		return getText(slidesByDefault,notesByDefault);
}

Fetches all the slide text from the slideshow, but not the notes, unless you've called setSlidesByDefault() and setNotesByDefault() to change this

 public String getText(boolean getSlideText,
    boolean getNoteText) 
{
	StringBuffer ret = new StringBuffer(); 
	if(getSlideText) {
		for(int i=0; i< _slides.length; i++) {
			Slide slide = _slides[i];
			TextRun[] runs = slide.getTextRuns();
			for(int j=0; j< runs.length; j++) {
				TextRun run = runs[j];
				if(run != null) {
					String text = run.getText();
					ret.append(text);
					if(! text.endsWith("\n")) {
						ret.append("\n");
					}
				}
			}
		}
		if(getNoteText) {
			ret.append("\n");
		}
	}
	if(getNoteText) {
		// Not currently using _notes, as that can have the notes of
		//  master sheets in. Grab Slide list, then work from there,
		//  but ensure no duplicates
		HashSet seenNotes = new HashSet();
		for(int i=0; i< _slides.length; i++) {
			Notes notes = _slides[i].getNotesSheet();
			if(notes == null) { continue; }
			Integer id = new Integer(notes._getSheetNumber());
			if(seenNotes.contains(id)) { continue; }
			seenNotes.add(id);
			TextRun[] runs = notes.getTextRuns();
			if(runs != null && runs.length  > 0) {
				for(int j=0; j< runs.length; j++) {
					TextRun run = runs[j];
					String text = run.getText();
					ret.append(text);
					if(! text.endsWith("\n")) {
						ret.append("\n");
					}
				}
			}
		}
	}
	return ret.toString();
}

Fetches text from the slideshow, be it slide text or note text. Because the final block of text in a TextRun normally have their last \n stripped, we add it back

 public static  void main(String[] args) throws IOException 
{
                
	if(args.length <  1) {
		System.err.println("Useage:");
		System.err.println("\tPowerPointExtractor [-notes] < file >");
		System.exit(1);
	}
	boolean notes = false;
	String file;
	if(args.length  > 1) {
		notes = true;
		file = args[1];
	} else {
		file = args[0];
	}
	PowerPointExtractor ppe = new PowerPointExtractor(file);
	System.out.println(ppe.getText(true,notes));
	ppe.close();
}

Basic extractor. Returns all the text, and optionally all the notes

 public  void setNotesByDefault(boolean notesByDefault) 
{
		this.notesByDefault = notesByDefault;
}

Should a call to getText() return notes text? Default is no

 public  void setSlidesByDefault(boolean slidesByDefault) 
{
		this.slidesByDefault = slidesByDefault;
}

Should a call to getText() return slide text? Default is yes