java 在 pdf 中添加表单域-凯发线上登陆下载网址

pdf表单域，也称交互域，主要用于收集用户信息。常见的表单域包括文本框、单选按钮、复选框、列表框和组合框等。文本将介绍如何使用spire.pdf for java在java程序中创建pdf表单域。

import java.awt.*;
import java.awt.geom.point2d;
import java.awt.geom.rectangle2d;
import com.spire.pdf.fields.*;
import com.spire.pdf.graphics.*;
public class addformfieldstopdf {
	public static void main(string[] args) throws exception {
		
        //创建pdfdocument对象
        pdfdocument doc = new pdfdocument();
          
	    //添加页面
	    pdfpagebase page = doc.getpages().add();
	    //初始化位置变量
	    float basex = 100;
	    float basey = 0;
        //创建画刷对象
        pdfsolidbrush brush1 = new pdfsolidbrush(new pdfrgbcolor(color.blue));
        pdfsolidbrush brush2 = new pdfsolidbrush(new pdfrgbcolor(color.black));
        
        //创建truetype字体
        pdftruetypefont font= new pdftruetypefont(new font("arial unicode ms",font.plain,12),true); 
        //添加文本框
        string text = "文本框:";//文本框前的文字  
        page.getcanvas().drawstring(text, font, brush1, new point2d.float(0, basey));//在pdf中绘制文字
        rectangle2d.float tbxbounds = new rectangle2d.float(basex, basey , 150, 15);//创建rectangle2d对象
        pdftextboxfield textbox = new pdftextboxfield(page, "textbox");//创建文本框对象
        textbox.setbounds(tbxbounds);//设置文本框的bounds,包括位置和大小信息
        textbox.settext("你好");//设置文本框的默认文字
        textbox.setfont(font);//设置文本框的字体
        doc.getform().getfields().add(textbox);//添加文本框到pdf域的集合
        basey  =25;
        //添加复选框
        page.getcanvas().drawstring("复选框:", font, brush1, new point2d.float(0, basey));
        java.awt.geom.rectangle2d.float rec1 = new java.awt.geom.rectangle2d.float(basex, basey, 15, 15);
        pdfcheckboxfield checkboxfield = new pdfcheckboxfield(page, "checkbox1");
        checkboxfield.setbounds(rec1);
        checkboxfield.setchecked(false);
        page.getcanvas().drawstring("选项1", font, brush2, new point2d.float(basex   20, basey));
        java.awt.geom.rectangle2d.float rec2 = new java.awt.geom.rectangle2d.float(basex   70, basey, 15, 15);
        pdfcheckboxfield checkboxfield1 = new pdfcheckboxfield(page, "checkbox2");
        checkboxfield1.setbounds(rec2);
        checkboxfield1.setchecked(false);
        page.getcanvas().drawstring("选项2", font,  brush2, new point2d.float(basex 90, basey));
        doc.getform().getfields().add(checkboxfield);
        basey  = 25;
        //添加列表框
        page.getcanvas().drawstring("列表框:", font, brush1, new point2d.float(0, basey));
        java.awt.geom.rectangle2d.float rec = new java.awt.geom.rectangle2d.float(basex, basey, 150, 50);
        pdflistboxfield listboxfield = new pdflistboxfield(page, "listbox");
        listboxfield.getitems().add(new pdflistfielditem("项目1", "item1"));
        listboxfield.getitems().add(new pdflistfielditem("项目2", "item2"));
        listboxfield.getitems().add(new pdflistfielditem("项目3", "item3"));;
        listboxfield.setbounds(rec);
        listboxfield.setfont(font);
        listboxfield.setselectedindex(0);
        doc.getform().getfields().add(listboxfield);
        basey  = 60;
        //添加单选按钮
        page.getcanvas().drawstring("单选按钮:", font, brush1, new point2d.float(0, basey));
        pdfradiobuttonlistfield radiobuttonlistfield = new pdfradiobuttonlistfield(page, "radio");
        pdfradiobuttonlistitem radioitem1 = new pdfradiobuttonlistitem("item1");
        radioitem1.setbounds(new rectangle2d.float(basex, basey, 15, 15));
        page.getcanvas().drawstring("选项1", font, brush2, new point2d.float(basex   20, basey));
        pdfradiobuttonlistitem radioitem2 = new pdfradiobuttonlistitem("item2");
        radioitem2.setbounds(new rectangle2d.float(basex   70, basey, 15, 15));
        page.getcanvas().drawstring("选项2", font, brush2, new point2d.float(basex   90, basey));
        radiobuttonlistfield.getitems().add(radioitem1);
        radiobuttonlistfield.getitems().add(radioitem2);
        radiobuttonlistfield.setselectedindex(0);
        doc.getform().getfields().add(radiobuttonlistfield);
        basey  = 25;
        //添加组合框
        page.getcanvas().drawstring("组合框:", font, brush1, new point2d.float(0, basey));
        rectangle2d.float cmbbounds = new rectangle2d.float(basex, basey, 150, 15);
        pdfcomboboxfield comboboxfield = new pdfcomboboxfield(page, "combobox");
        comboboxfield.setbounds(cmbbounds);
        comboboxfield.getitems().add(new pdflistfielditem("项目1", "item1"));
        comboboxfield.getitems().add(new pdflistfielditem("项目2", "itme2"));
        comboboxfield.getitems().add(new pdflistfielditem("项目3", "item3"));
        comboboxfield.getitems().add(new pdflistfielditem("项目4", "item4"));
        comboboxfield.setselectedindex(0);      
        comboboxfield.setfont(font);
        doc.getform().getfields().add(comboboxfield);
        basey  = 25;
        //添加签名域
        page.getcanvas().drawstring("签名域:", font, brush1, new point2d.float(0, basey));
        pdfsignaturefield sgnfield= new pdfsignaturefield(page,"sgnfield");
        rectangle2d.float sgnbounds = new rectangle2d.float(basex, basey, 150, 80);
        sgnfield.setbounds(sgnbounds);
        doc.getform().getfields().add(sgnfield);
        basey  = 90;
        //添加按钮
        page.getcanvas().drawstring("提交按钮:", font, brush1, new point2d.float(0, basey));
        rectangle2d.float btnbounds = new rectangle2d.float(basex, basey, 50, 15);
        pdfbuttonfield buttonfield = new pdfbuttonfield(page, "button");
        buttonfield.setbounds(btnbounds);
        buttonfield.settext("提交");
        buttonfield.setfont(font);
        doc.getform().getfields().add(buttonfield);
        //保存文档
        doc.savetofile("addformfield.pdf", fileformat.pdf);
	}
}