Introduction to the method of setting PDF ordered and unordered lists in Java (with code)

This article brings you an introduction to the method of setting PDF ordered and unordered lists in Java (with code). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you. help.

Setting an ordered or unordered list in a document is a way to reflect the superior-subordinate relationship of the content or the same attributes of the content. Compared with a simple text description, it can effectively enhance the organization of the document content and highlight the focus. Therefore, this article will share how to set an ordered or unordered list in a PDF document through Java programming.

Use tool: Free Spire.PDF for Java V2.2.2 (free version)

JarFile import:

Step1：Create a new folder in the Java program and name it Lib. And copy the jar file in the downloaded package (as shown below) to the newly created folder.

Step2：After copying the file, add it to the reference class library: select the jar file, right-click the mouse and select " Build Path” – “Add to Build Path”. Complete the citation.

JavaCode sample (for reference)

import com.spire.pdf.*;
import com.spire.pdf.graphics.*;
import com.spire.pdf.lists.*;
import java.awt.*;
import java.awt.geom.*;

public class list {
        public static void main(String[] args) {
        //创建PDFDocument对象
        PdfDocument doc = new PdfDocument();

        //设置边距
        PdfUnitConvertor unitCvtr = new PdfUnitConvertor();
        PdfMargins margin = new PdfMargins();
        margin.setTop(unitCvtr.convertUnits(2.54f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point));
        margin.setBottom(margin.getTop());
        margin.setLeft(unitCvtr.convertUnits(3.17f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point));
        margin.setRight(margin.getLeft());

        //添加新的一页
        PdfPageBase page = doc.getPages().add(PdfPageSize.A4, margin);
         //绘制标题
        float y = 10;
        PdfBrush brush1 = PdfBrushes.getBlack();
        PdfTrueTypeFont font1 = new PdfTrueTypeFont(new Font("Arial Unicode MS", Font.BOLD, 16), true);
       PdfStringFormat format1 = new PdfStringFormat(PdfTextAlignment.Center);
        page.getCanvas().drawString("部门活动采购清单", font1, brush1,     page.getCanvas().getClientSize().getWidth() / 2, y, format1);
        y = y + (float) font1.measureString("活动采购清单", format1).getHeight();
        y = y + 5;
        //设置列表格式和列表文字
        Rectangle2D rctg = new Rectangle2D.Float();
        rctg.setFrame(new Point(0, 0), page.getCanvas().getClientSize());
        PdfLinearGradientBrush brush = new PdfLinearGradientBrush(rctg, new PdfRGBColor(new PdfRGBColor(new Color(0,0,128))), new PdfRGBColor(new Color(255,69,0)), PdfLinearGradientMode.Vertical);
        PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial Unicode MS", Font.BOLD, 12), true);
        String formatted1 = "行政部\n开发部\n销售部\n后勤处\n保卫处";
        String formatted2 = "饮料\n调味品\n糖果\n奶制品\n肉类\n蔬菜\n海鲜";
        //画无序列表
        PdfListBase list = new PdfUnorderedList(formatted2);
        list.setFont(font);
        list.setIndent(8);
        list.setTextIndent(5);
        list.setBrush(brush);
        PdfLayoutResult result = list.draw(page, 0, y);
        y = (float) (result.getBounds().getHeight()+result.getBounds().getY());
        //画有序列表
        PdfSortedList sortedList = new PdfSortedList(formatted1);
        sortedList.setFont(font);
        sortedList.setIndent(8);
        sortedList.setTextIndent(5);
        sortedList.setBrush(brush);
        sortedList.draw(page, 0, y);

        //保存文档 
        doc.saveToFile("list.pdf");
        doc.close();
    }
}

List setting effect:

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