import com.spire.pdf.*;
import com.spire.pdf.actions.*;
import com.spire.pdf.fields.PdfButtonField;
import com.spire.pdf.general.PdfDestination;
import com.spire.pdf.graphics.PdfRGBColor;
import com.spire.pdf.graphics.PdfTrueTypeFont;
import java.awt.*;
import java.awt.geom.Rectangle2D;

public class Buttons {
    public static void main(String[]args) throws  Exception{
        //创建文档，添加页面
        PdfDocument pdf = new PdfDocument();
        pdf.loadFromFile("test.pdf");

        //分别获取第一页、第二页及最后一页
        PdfPageBase page0 = pdf.getPages().get(0);
        PdfPageBase page1 = pdf.getPages().get(1);
        PdfPageBase page2 = pdf.getPages().get(pdf.getPages().getCount()-1);

        //设置允许创建窗体
        pdf.setAllowCreateForm(true);

        //定义float变量来确定按钮的位置及大小
        float x = 480;
        float y = 750;
        float width = 70;
        float height = 23;

        //创建truetype字体
        PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("楷体", Font.PLAIN, 9), true);

        //创建按钮0跳转到最后一页
        PdfButtonField btn_0 = new PdfButtonField(page0, "btn_0");
        Rectangle2D.Float rect = new Rectangle2D.Float(x, y + 15, width, height);
        btn_0.setBounds(rect);
        btn_0.setFont(font);
        btn_0.setText("跳转至最后一页");
        btn_0.setBackColor(new PdfRGBColor(245,245,245));
        btn_0.setForeColor(new PdfRGBColor(Color.black));
        btn_0.setBorderColor(new PdfRGBColor(Color.white));
        PdfNamedAction namedAction = new PdfNamedAction(PdfActionDestination.LastPage);
        btn_0.getActions().setMouseDown(namedAction);
        pdf.getForm().getFields().add(btn_0);

        //创建按钮1跳转到上一页
        PdfButtonField btn_1 = new PdfButtonField(page1, "btn_1");
        rect = new Rectangle2D.Float(x, y, width, height);
        btn_1.setBounds(rect);
        btn_1.setFont(font);
        btn_1.setText("上一页");
        btn_1.setBackColor(new PdfRGBColor(Color.white));
        btn_1.setForeColor(new PdfRGBColor(Color.black));
        btn_1.setBorderColor(new PdfRGBColor(245,245,245));
        namedAction = new PdfNamedAction(PdfActionDestination.PrevPage);
        btn_1.getActions().setMouseDown(namedAction);
        pdf.getForm().getFields().add(btn_1);

        //创建按钮2跳转下一页
        PdfButtonField btn_2 = new PdfButtonField(page1, "btn_2");
        rect = new Rectangle2D.Float(x, y + height + 5, width, height);
        btn_2.setBounds(rect);
        btn_2.setFont(font);
        btn_2.setText("下一页");
        btn_2.setBackColor(new PdfRGBColor(245,245,245));
        btn_2.setForeColor(new PdfRGBColor(Color.black));
        btn_2.setBorderColor(new PdfRGBColor(Color.white));
        namedAction = new PdfNamedAction(PdfActionDestination.NextPage);
        btn_2.getActions().setMouseDown(namedAction);
        pdf.getForm().getFields().add(btn_2);

        //创建按钮3跳转到首页
        PdfButtonField btn_3 = new PdfButtonField(page2, "btn_3");
        rect = new Rectangle2D.Float(x, 60, width, height);
        btn_3.setBounds(rect);
        btn_3.setFont(font);
        btn_3.setText("返回首页");
        btn_3.setBackColor(new PdfRGBColor(245,245,245));
        btn_3.setForeColor(new PdfRGBColor(Color.black));
        btn_3.setBorderColor(new PdfRGBColor(Color.white));
        namedAction = new PdfNamedAction(PdfActionDestination.FirstPage);
        btn_3.getActions().setMouseDown(namedAction);
        pdf.getForm().getFields().add(btn_3);

        //创建按钮4跳转到指定页
        PdfButtonField btn_4 = new PdfButtonField(page2, "btn_4");
        rect = new Rectangle2D.Float( x,90 , width, height);
        btn_4.setBounds(rect);
        btn_4.setText("跳转至第二页");
        btn_4.setFont(font);
        btn_4.setBackColor(new PdfRGBColor(Color.white));
        btn_4.setForeColor(new PdfRGBColor(Color.black));
        btn_4.setBorderColor(new PdfRGBColor(245,245,245));
        PdfGoToAction goToAction = new PdfGoToAction(new PdfDestination(pdf.getPages().get(1)));
        btn_4.getActions().setMouseDown(goToAction);
        pdf.getForm().getFields().add(btn_4);

        //保存文档
        pdf.saveToFile("NavigationButton.pdf", FileFormat.PDF);
        pdf.close();
    }
}