import com.spire.pdf.*;
import com.spire.pdf.actions.PdfGoToAction;
import com.spire.pdf.annotations.*;
import com.spire.pdf.general.PdfDestination;
import com.spire.pdf.graphics.*;
import java.awt.*;
import java.awt.geom.*;

public class TableOfContent {
    public static void main(String[] args) throws Exception
    {
        //load PDF file
        PdfDocument doc = new PdfDocument("sample.pdf");
        int pageCount = doc.getPages().getCount();
        //Insert a new page as the first page to draw table of content
        PdfPageBase tocPage = doc.getPages().insert(0);
        //set title
        String title = "Table Of Contents";
        PdfTrueTypeFont titleFont = new PdfTrueTypeFont(new Font("Arial",  Font.BOLD,20));
        PdfStringFormat centerAlignment = new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle);
        Point2D location = new Point2D.Float((float) tocPage.getCanvas().getClientSize().getWidth() / 2, (float) titleFont.measureString(title).getHeight());
        tocPage.getCanvas().drawString(title, titleFont, PdfBrushes.getCornflowerBlue(), location, centerAlignment);
        //draw TOC text
        PdfTrueTypeFont titlesFont = new PdfTrueTypeFont(new Font("Arial", Font.PLAIN,14));
        String[] titles = new String[pageCount];
        for (int i = 0; i < titles.length; i++) {
            titles[i] = String.format("page%1$s", i + 1);
        }
        float y = (float)titleFont.measureString(title).getHeight() + 10;
        float x = 0;
        for (int i = 1; i <= pageCount; i++) {
            String text = titles[i - 1];
            Dimension2D titleSize = titlesFont.measureString(text);
            PdfPageBase navigatedPage = doc.getPages().get(i);
            String pageNumText = (String.valueOf(i+1));
            Dimension2D pageNumTextSize = titlesFont.measureString(pageNumText);
            tocPage.getCanvas().drawString(text, titlesFont, PdfBrushes.getCadetBlue(), 0, y);
            float dotLocation = (float)titleSize.getWidth() + 2 + x;
            float pageNumlocation = (float)(tocPage.getCanvas().getClientSize().getWidth() - pageNumTextSize.getWidth());
            for (float j = dotLocation; j < pageNumlocation; j++) {
                if (dotLocation >= pageNumlocation) {
                    break;
                }
                tocPage.getCanvas().drawString(".", titlesFont, PdfBrushes.getGray(), dotLocation, y);
                dotLocation += 3;
            }
            tocPage.getCanvas().drawString(pageNumText, titlesFont, PdfBrushes.getCadetBlue(), pageNumlocation, y);
            //add TOC action
            Rectangle2D titleBounds = new Rectangle2D.Float(0,y,(float)tocPage.getCanvas().getClientSize().getWidth(),(float)titleSize.getHeight());
            PdfDestination Dest = new PdfDestination(navigatedPage, new Point2D.Float(-doc.getPageSettings().getMargins().getTop(), -doc.getPageSettings().getMargins().getLeft()));
            PdfActionAnnotation action = new PdfActionAnnotation(titleBounds, new PdfGoToAction(Dest));
            action.setBorder(new PdfAnnotationBorder(0));
            ((PdfNewPage) ((tocPage instanceof PdfNewPage) ? tocPage : null)).getAnnotations().add(action);
            y += titleSize.getHeight() + 10;
        }

        //save the resultant file
        doc.saveToFile("addTableOfContent.pdf");
        doc.close();
    }
}

import com.spire.presentation.ITable;
import com.spire.presentation.Presentation;
import com.spire.presentation.FileFormat;
import com.spire.presentation.TableStylePreset;

public class SetTableStyle {
    public static void main(String[] args) throws Exception {

        //Create a PPT document and load file
        Presentation presentation = new Presentation();
        presentation.loadFromFile("Sample.pptx");

        ITable table = null;

        for (Object shape : presentation.getSlides().get(0).getShapes()) {
            if (shape instanceof ITable) {
                table = (ITable) shape;
                //Set the table style from TableStylePreset and apply it to selected table
                table.setStylePreset(TableStylePreset.MEDIUM_STYLE_1_ACCENT_2);
            }
        }
        //Save the file
       presentation.saveToFile("SetTableStyle.pptx", FileFormat.PPTX_2010);

    }
}

import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.PdfMargins;
import com.spire.pdf.graphics.PdfTemplate;

import java.awt.geom.Dimension2D;
import java.awt.geom.Point2D;

public class DuplicatePage {

    public static void main(String[] args) {

        //Load a sample PDF document
        PdfDocument pdf = new PdfDocument("C:\\Users\\Administrator\\Desktop\\original.pdf");

        //Get the first page
        PdfPageBase page = pdf.getPages().get(0);

        //Get the page size
        Dimension2D size = page.getActualSize();

        //Create a template based on the page
        PdfTemplate template = page.createTemplate();

        for (int i = 0; i < 10; i++) {

            //Add a new page to the document
            page = pdf.getPages().add(size, new PdfMargins(0));

            //Draw template on the new page
            page.getCanvas().drawTemplate(template, new Point2D.Float(0, 0));
        }

        //Save the file
        pdf.saveToFile("output/DuplicatePage.pdf");
    }
}