To Format text on a slide in PowerPoint Presentation using Java, use a Java Library called Apache POI. Apache POI is a project run by the Apache Software Foundation, and previously a sub-project of the Jakarta Project provides pure Java libraries for reading and writing files in Microsoft Office formats, such as Word, PowerPoint, and Excel. Use the Apache guide to install the Apache POI libraries for Windows/Linux Systems.
Approach:
- Create an empty Presentation Object using XMLSlideShow from the Apache POI package.
- Create SlideMaster Object and get first slide using XSLFSlideMaster.
- Set the Layout of Slide using XSLFSlideLayout Object.
- Create Slide using the Layout.
- Get the second title of Slide using XSLFTextShape Object and add Paragraph to it using XSLFTextParagraph Object.
- Add Lines to paragraph using XSLFTextRun Object and add formatting attributes.
Implementation:
Java
// Formatting text on a slide in a PPT using javaimport java.io.*;  // importing Apache POI environment packagesimport org.apache.poi.xslf.usermodel.*;  public class FormatTextPPT {    public static void main(String args[])        throws IOException    {          // creating an empty presentation        XMLSlideShow ppt = new XMLSlideShow();          // creating the slide master object        XSLFSlideMaster slideMaster            = ppt.getSlideMasters().get(0);          // select a layout from specified slideLayout list        XSLFSlideLayout slidelayout = slideMaster.getLayout(            SlideLayout.TITLE_AND_CONTENT);          // creating a slide with title and content layout        XSLFSlide slide = ppt.createSlide(slidelayout);          // selection of title place holder        XSLFTextShape title = slide.getPlaceholder(1);                // clear the existing text in the slide        title.clearText();          // adding new paragraph        XSLFTextParagraph paragraph            = title.addNewTextParagraph();          // formatting line 1        XSLFTextRun line1 = paragraph.addNewTextRun();        line1.setText("Formatted Bold");                // making the text bold        line1.setBold(true);                // moving to the next line        paragraph.addLineBreak();          // formatting line 2        XSLFTextRun line2 = paragraph.addNewTextRun();        line2.setText("Formatted with Color");                // setting color to the text        line2.setFontColor(java.awt.Color.RED);                // setting font size to the text        line2.setFontSize(24.0);                // moving to the next line        paragraph.addLineBreak();          // formatting line 3        XSLFTextRun line3 = paragraph.addNewTextRun();        line3.setText("Formatted with Underline");                // underlining the text        line3.setUnderlined(true);                // setting color to the text        line3.setFontColor(java.awt.Color.GRAY);                // moving to the next line        paragraph.addLineBreak();          // formatting line 4        XSLFTextRun line4 = paragraph.addNewTextRun();        line4.setText("Text Formatted with Strike");        line4.setFontSize(12.0);                // making the text italic        line4.setItalic(true);                // setting color to the text        line4.setFontColor(java.awt.Color.BLUE);                // strike through the text        line4.setStrikethrough(true);                // setting font size to the text        line4.setFontSize(24.0);                // moving to the next line        paragraph.addLineBreak();          // getting path of current working directory        // to create the pdf file in the same directory of        // the running java program        String path = System.getProperty("user.dir");        path += "/FormattedText.pptx";          // creating a file object with the path specified        File file = new File(path);        FileOutputStream out = new FileOutputStream(file);          // saving the changes to a file        ppt.write(out);        out.close();        ppt.close();        System.out.println(            "PPT with Formatted Text created successfully!");    }} |
After execution of the program :Â
Output : FormattedText.ppt
