iText Jump-Start Tutorial : Chapter 2
c02e01_axes
JAVA
JAVA
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
For more information, please contact iText Software at this address:
sales@itextpdf.com
*/
package tutorial.chapter02;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.pdf.canvas.PdfCanvasConstants;
import java.io.File;
import java.io.IOException;
/**
* Simple drawing lines example.
*/
public class C02E01_Axes {
public static final String DEST = "results/chapter02/axes.pdf";
public static void main(String args[]) throws IOException {
File file = new File(DEST);
file.getParentFile().mkdirs();
new C02E01_Axes().createPdf(DEST);
}
public void createPdf(String dest) throws IOException {
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PageSize ps = PageSize.A4.rotate();
PdfPage page = pdf.addNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
//Replace the origin of the coordinate system to the center of the page
canvas.concatMatrix(1, 0, 0, 1, ps.getWidth() / 2, ps.getHeight() / 2);
C02E01_Axes.drawAxes(canvas, ps);
//Close document
pdf.close();
}
public static void drawAxes(PdfCanvas canvas, PageSize ps) {
//Draw X axis
canvas.moveTo(-(ps.getWidth() / 2 - 15), 0)
.lineTo(ps.getWidth() / 2 - 15, 0)
.stroke();
//Draw X axis arrow
canvas.setLineJoinStyle(PdfCanvasConstants.LineJoinStyle.ROUND)
.moveTo(ps.getWidth() / 2 - 25, -10)
.lineTo(ps.getWidth() / 2 - 15, 0)
.lineTo(ps.getWidth() / 2 - 25, 10).stroke()
.setLineJoinStyle(PdfCanvasConstants.LineJoinStyle.MITER);
//Draw Y axis
canvas.moveTo(0, -(ps.getHeight() / 2 - 15))
.lineTo(0, ps.getHeight() / 2 - 15)
.stroke();
//Draw Y axis arrow
canvas.saveState()
.setLineJoinStyle(PdfCanvasConstants.LineJoinStyle.ROUND)
.moveTo(-10, ps.getHeight() / 2 - 25)
.lineTo(0, ps.getHeight() / 2 - 15)
.lineTo(10, ps.getHeight() / 2 - 25).stroke()
.restoreState();
//Draw X serif
for (int i = -((int) ps.getWidth() / 2 - 61); i < ((int) ps.getWidth() / 2 - 60); i += 40) {
canvas.moveTo(i, 5).lineTo(i, -5);
}
//Draw Y serif
for (int j = -((int) ps.getHeight() / 2 - 57); j < ((int) ps.getHeight() / 2 - 56); j += 40) {
canvas.moveTo(5, j).lineTo(-5, j);
}
canvas.stroke();
}
}C#
C#
using System;
using System.IO;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas;
namespace Tutorial.Chapter02 {
/// <summary>Simple drawing lines example.</summary>
public class C02E01_Axes {
public const String DEST = "../../../results/chapter02/axes.pdf";
public static void Main(String[] args) {
FileInfo file = new FileInfo(DEST);
file.Directory.Create();
new C02E01_Axes().CreatePdf(DEST);
}
public virtual void CreatePdf(String dest) {
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PageSize ps = PageSize.A4.Rotate();
PdfPage page = pdf.AddNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
//Replace the origin of the coordinate system to the center of the page
canvas.ConcatMatrix(1, 0, 0, 1, ps.GetWidth() / 2, ps.GetHeight() / 2);
C02E01_Axes.DrawAxes(canvas, ps);
//Close document
pdf.Close();
}
public static void DrawAxes(PdfCanvas canvas, PageSize ps) {
//Draw X axis
canvas.MoveTo(-(ps.GetWidth() / 2 - 15), 0).LineTo(ps.GetWidth() / 2 - 15, 0).Stroke();
//Draw X axis arrow
canvas.SetLineJoinStyle(PdfCanvasConstants.LineJoinStyle.ROUND).MoveTo(ps.GetWidth() / 2 - 25, -10).LineTo
(ps.GetWidth() / 2 - 15, 0).LineTo(ps.GetWidth() / 2 - 25, 10).Stroke().SetLineJoinStyle(PdfCanvasConstants.LineJoinStyle
.MITER);
//Draw Y axis
canvas.MoveTo(0, -(ps.GetHeight() / 2 - 15)).LineTo(0, ps.GetHeight() / 2 - 15).Stroke();
//Draw Y axis arrow
canvas.SaveState().SetLineJoinStyle(PdfCanvasConstants.LineJoinStyle.ROUND).MoveTo(-10, ps.GetHeight() / 2
- 25).LineTo(0, ps.GetHeight() / 2 - 15).LineTo(10, ps.GetHeight() / 2 - 25).Stroke().RestoreState();
//Draw X serif
for (int i = -((int)ps.GetWidth() / 2 - 61); i < ((int)ps.GetWidth() / 2 - 60); i += 40) {
canvas.MoveTo(i, 5).LineTo(i, -5);
}
//Draw Y serif
for (int j = -((int)ps.GetHeight() / 2 - 57); j < ((int)ps.GetHeight() / 2 - 56); j += 40) {
canvas.MoveTo(5, j).LineTo(-5, j);
}
canvas.Stroke();
}
}
}c02e02_gridlines
JAVA
JAVA
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
For more information, please contact iText Software at this address:
sales@itextpdf.com
*/
package tutorial.chapter02;
import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.colors.DeviceCmyk;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import java.io.File;
import java.io.IOException;
/**
* Simple changing graphics state example.
*/
public class C02E02_GridLines {
public static final String DEST = "results/chapter02/grid_lines.pdf";
public static void main(String args[]) throws IOException {
File file = new File(DEST);
file.getParentFile().mkdirs();
new C02E02_GridLines().createPdf(DEST);
}
public void createPdf(String dest) throws IOException {
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PageSize ps = PageSize.A4.rotate();
PdfPage page = pdf.addNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
//Replace the origin of the coordinate system to the center of the page
canvas.concatMatrix(1, 0, 0, 1, ps.getWidth() / 2, ps.getHeight() / 2);
Color grayColor = new DeviceCmyk(0.f, 0.f, 0.f, 0.875f);
Color greenColor = new DeviceCmyk(1.f, 0.f, 1.f, 0.176f);
Color blueColor = new DeviceCmyk(1.f, 0.156f, 0.f, 0.118f);
canvas.setLineWidth(0.5f).setStrokeColor(blueColor);
//Draw horizontal grid lines
for (int i = -((int) ps.getHeight() / 2 - 57); i < ((int) ps.getHeight() / 2 - 56); i += 40) {
canvas.moveTo(-(ps.getWidth() / 2 - 15), i)
.lineTo(ps.getWidth() / 2 - 15, i);
}
//Draw vertical grid lines
for (int j = -((int) ps.getWidth() / 2 - 61); j < ((int) ps.getWidth() / 2 - 60); j += 40) {
canvas.moveTo(j, -(ps.getHeight() / 2 - 15))
.lineTo(j, ps.getHeight() / 2 - 15);
}
canvas.stroke();
//Draw axes
canvas.setLineWidth(3).setStrokeColor(grayColor);
C02E01_Axes.drawAxes(canvas, ps);
//Draw plot
canvas.setLineWidth(2).setStrokeColor(greenColor)
.setLineDash(10, 10, 8)
.moveTo(-(ps.getWidth() / 2 - 15), -(ps.getHeight() / 2 - 15))
.lineTo(ps.getWidth() / 2 - 15, ps.getHeight() / 2 - 15).stroke();
//Close document
pdf.close();
}
}C#
C#
using System;
using System.IO;
using iText.Kernel.Colors;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas;
namespace Tutorial.Chapter02 {
/// <summary>Simple changing graphics state example.</summary>
public class C02E02_GridLines {
public const String DEST = "../../../results/chapter02/grid_lines.pdf";
public static void Main(String[] args) {
FileInfo file = new FileInfo(DEST);
file.Directory.Create();
new C02E02_GridLines().CreatePdf(DEST);
}
public virtual void CreatePdf(String dest) {
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PageSize ps = PageSize.A4.Rotate();
PdfPage page = pdf.AddNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
//Replace the origin of the coordinate system to the center of the page
canvas.ConcatMatrix(1, 0, 0, 1, ps.GetWidth() / 2, ps.GetHeight() / 2);
Color grayColor = new DeviceCmyk(0f, 0f, 0f, 0.875f);
Color greenColor = new DeviceCmyk(1f, 0f, 1f, 0.176f);
Color blueColor = new DeviceCmyk(1f, 0.156f, 0f, 0.118f);
canvas.SetLineWidth(0.5f).SetStrokeColor(blueColor);
//Draw horizontal grid lines
for (int i = -((int)ps.GetHeight() / 2 - 57); i < ((int)ps.GetHeight() / 2 - 56); i += 40) {
canvas.MoveTo(-(ps.GetWidth() / 2 - 15), i).LineTo(ps.GetWidth() / 2 - 15, i);
}
//Draw vertical grid lines
for (int j = -((int)ps.GetWidth() / 2 - 61); j < ((int)ps.GetWidth() / 2 - 60); j += 40) {
canvas.MoveTo(j, -(ps.GetHeight() / 2 - 15)).LineTo(j, ps.GetHeight() / 2 - 15);
}
canvas.Stroke();
//Draw axes
canvas.SetLineWidth(3).SetStrokeColor(grayColor);
C02E01_Axes.DrawAxes(canvas, ps);
//Draw plot
canvas.SetLineWidth(2).SetStrokeColor(greenColor).SetLineDash(10, 10, 8).MoveTo(-(ps.GetWidth() / 2 - 15),
-(ps.GetHeight() / 2 - 15)).LineTo(ps.GetWidth() / 2 - 15, ps.GetHeight() / 2 - 15).Stroke();
//Close document
pdf.Close();
}
}
}c02e03_starwars
JAVA
JAVA
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
For more information, please contact iText Software at this address:
sales@itextpdf.com
*/
package tutorial.chapter02;
import com.itextpdf.io.font.constants.StandardFonts;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Simple drawing text example.
*/
public class C02E03_StarWars {
public static final String DEST = "results/chapter02/star_wars.pdf";
public static void main(String args[]) throws IOException {
File file = new File(DEST);
file.getParentFile().mkdirs();
new C02E03_StarWars().createPdf(DEST);
}
public void createPdf(String dest) throws IOException {
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
//Add new page
PageSize ps = PageSize.A4;
PdfPage page = pdf.addNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
List<String> text = new ArrayList();
text.add(" Episode V ");
text.add(" THE EMPIRE STRIKES BACK ");
text.add("It is a dark time for the");
text.add("Rebellion. Although the Death");
text.add("Star has been destroyed,");
text.add("Imperial troops have driven the");
text.add("Rebel forces from their hidden");
text.add("base and pursued them across");
text.add("the galaxy.");
text.add("Evading the dreaded Imperial");
text.add("Starfleet, a group of freedom");
text.add("fighters led by Luke Skywalker");
text.add("has established a new secret");
text.add("base on the remote ice world");
text.add("of Hoth...");
//Replace the origin of the coordinate system to the top left corner
canvas.concatMatrix(1, 0, 0, 1, 0, ps.getHeight());
canvas.beginText()
.setFontAndSize(PdfFontFactory.createFont(StandardFonts.COURIER_BOLD), 14)
.setLeading(14 * 1.2f)
.moveText(70, -40);
for (String s : text) {
//Add text and move to the next line
canvas.newlineShowText(s);
}
canvas.endText();
//Close document
pdf.close();
}
}C#
C#
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using iText.IO.Font.Constants;
using iText.Kernel.Font;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas;
namespace Tutorial.Chapter02 {
/// <summary>Simple drawing text example.</summary>
public class C02E03_StarWars {
public const String DEST = "../../../results/chapter02/star_wars.pdf";
public static void Main(String[] args) {
FileInfo file = new FileInfo(DEST);
file.Directory.Create();
new C02E03_StarWars().CreatePdf(DEST);
}
public virtual void CreatePdf(String dest) {
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
//Add new page
PageSize ps = PageSize.A4;
PdfPage page = pdf.AddNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
IList<String> text = new List<String>();
text.Add(" Episode V ");
text.Add(" THE EMPIRE STRIKES BACK ");
text.Add("It is a dark time for the");
text.Add("Rebellion. Although the Death");
text.Add("Star has been destroyed,");
text.Add("Imperial troops have driven the");
text.Add("Rebel forces from their hidden");
text.Add("base and pursued them across");
text.Add("the galaxy.");
text.Add("Evading the dreaded Imperial");
text.Add("Starfleet, a group of freedom");
text.Add("fighters led by Luke Skywalker");
text.Add("has established a new secret");
text.Add("base on the remote ice world");
text.Add("of Hoth...");
//Replace the origin of the coordinate system to the top left corner
canvas.ConcatMatrix(1, 0, 0, 1, 0, ps.GetHeight());
canvas.BeginText().SetFontAndSize(PdfFontFactory.CreateFont(StandardFonts.COURIER_BOLD), 14).SetLeading(14
* 1.2f).MoveText(70, -40);
foreach (String s in text) {
//Add text and move to the next line
canvas.NewlineShowText(s);
}
canvas.EndText();
//Close document
pdf.Close();
}
}
}c02e04_starwarscrawl
JAVA
JAVA
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
For more information, please contact iText Software at this address:
sales@itextpdf.com
*/
package tutorial.chapter02;
import com.itextpdf.io.font.constants.StandardFonts;
import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.colors.ColorConstants;
import com.itextpdf.kernel.colors.DeviceCmyk;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Simple changing text state example.
*/
public class C02E04_StarWarsCrawl {
public static final String DEST = "results/chapter02/star_wars_crawl.pdf";
public static void main(String args[]) throws IOException {
File file = new File(DEST);
file.getParentFile().mkdirs();
new C02E04_StarWarsCrawl().createPdf(DEST);
}
public void createPdf(String dest) throws IOException {
List<String> text = new ArrayList();
text.add(" Episode V ");
text.add(" THE EMPIRE STRIKES BACK ");
text.add("It is a dark time for the");
text.add("Rebellion. Although the Death");
text.add("Star has been destroyed,");
text.add("Imperial troops have driven the");
text.add("Rebel forces from their hidden");
text.add("base and pursued them across");
text.add("the galaxy.");
text.add("Evading the dreaded Imperial");
text.add("Starfleet, a group of freedom");
text.add("fighters led by Luke Skywalker");
text.add("has established a new secret");
text.add("base on the remote ice world");
text.add("of Hoth...");
int maxStringWidth = 0;
for (String fragment : text) {
if (fragment.length() > maxStringWidth) maxStringWidth = fragment.length();
}
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
//Add new page
PageSize ps = PageSize.A4;
PdfPage page = pdf.addNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
//Set black background
canvas.rectangle(0, 0, ps.getWidth(), ps.getHeight())
.setColor(ColorConstants.BLACK, true)
.fill();
//Replace the origin of the coordinate system to the top left corner
canvas.concatMatrix(1, 0, 0, 1, 0, ps.getHeight());
Color yellowColor = new DeviceCmyk(0.f, 0.0537f, 0.769f, 0.051f);
float lineHeight = 5;
float yOffset = -40;
canvas.beginText()
.setFontAndSize(PdfFontFactory.createFont(StandardFonts.COURIER_BOLD), 1)
.setColor(yellowColor, true);
for (int j = 0; j < text.size(); j++) {
String line = text.get(j);
float xOffset = ps.getWidth() / 2 - 45 - 8 * j;
float fontSizeCoeff = 6 + j;
float lineSpacing = (lineHeight + j) * j / 1.5f;
int stringWidth = line.length();
for (int i = 0; i < stringWidth; i++) {
float angle = (maxStringWidth / 2 - i) / 2f;
float charXOffset = (4 + (float) j / 2) * i;
canvas.setTextMatrix(fontSizeCoeff, 0,
angle, fontSizeCoeff / 1.5f,
xOffset + charXOffset, yOffset - lineSpacing)
.showText(String.valueOf(line.charAt(i)));
}
}
canvas.endText();
//Close document
pdf.close();
}
}C#
C#
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using iText.IO.Font.Constants;
using iText.Kernel.Colors;
using iText.Kernel.Font;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas;
namespace Tutorial.Chapter02 {
/// <summary>Simple changing text state example.</summary>
public class C02E04_StarWarsCrawl {
public const String DEST = "../../../results/chapter02/star_wars_crawl.pdf";
public static void Main(String[] args) {
FileInfo file = new FileInfo(DEST);
file.Directory.Create();
new C02E04_StarWarsCrawl().CreatePdf(DEST);
}
public virtual void CreatePdf(String dest) {
IList<String> text = new List<String>();
text.Add(" Episode V ");
text.Add(" THE EMPIRE STRIKES BACK ");
text.Add("It is a dark time for the");
text.Add("Rebellion. Although the Death");
text.Add("Star has been destroyed,");
text.Add("Imperial troops have driven the");
text.Add("Rebel forces from their hidden");
text.Add("base and pursued them across");
text.Add("the galaxy.");
text.Add("Evading the dreaded Imperial");
text.Add("Starfleet, a group of freedom");
text.Add("fighters led by Luke Skywalker");
text.Add("has established a new secret");
text.Add("base on the remote ice world");
text.Add("of Hoth...");
int maxStringWidth = 0;
foreach (String fragment in text) {
if (fragment.Length > maxStringWidth) {
maxStringWidth = fragment.Length;
}
}
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
//Add new page
PageSize ps = PageSize.A4;
PdfPage page = pdf.AddNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
//Set black background
canvas.Rectangle(0, 0, ps.GetWidth(), ps.GetHeight()).SetColor(ColorConstants.BLACK, true).Fill();
//Replace the origin of the coordinate system to the top left corner
canvas.ConcatMatrix(1, 0, 0, 1, 0, ps.GetHeight());
Color yellowColor = new DeviceCmyk(0f, 0.0537f, 0.769f, 0.051f);
float lineHeight = 5;
float yOffset = -40;
canvas.BeginText().SetFontAndSize(PdfFontFactory.CreateFont(StandardFonts.COURIER_BOLD), 1).SetColor(yellowColor
, true);
for (int j = 0; j < text.Count; j++) {
String line = text[j];
float xOffset = ps.GetWidth() / 2 - 45 - 8 * j;
float fontSizeCoeff = 6 + j;
float lineSpacing = (lineHeight + j) * j / 1.5f;
int stringWidth = line.Length;
for (int i = 0; i < stringWidth; i++) {
float angle = (maxStringWidth / 2 - i) / 2f;
float charXOffset = (4 + (float)j / 2) * i;
canvas.SetTextMatrix(fontSizeCoeff, 0, angle, fontSizeCoeff / 1.5f, xOffset + charXOffset, yOffset - lineSpacing
).ShowText(line[i].ToString());
}
}
canvas.EndText();
//Close document
pdf.Close();
}
}
}