This article demonstrates how to add links, including ordinary link, hypertext link, email link and document link, to a PDF document by using Spire.PDF for Java.
import com.spire.pdf.annotations.*;
import com.spire.pdf.graphics.*;
import java.awt.*;
import java.awt.font.TextAttribute;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.util.HashMap;
public class AddLinksToPdf {
public static void main(String[] args) throws Exception {
//create a pdf document
PdfDocument doc = new PdfDocument();
PdfPageBase page = doc.getPages().add();
//initialize x, y coordinates
float y = 30;
float x = 0;
//create a plain font
PdfTrueTypeFont plainFont = new PdfTrueTypeFont(new Font("Arial Unicode MS",Font.PLAIN,13),true);
//create a underlined font
HashMap<TextAttribute, Object> hm = new HashMap<TextAttribute, Object>();
hm.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
hm.put(TextAttribute.SIZE, 13);
hm.put(TextAttribute.FAMILY, "Arial");
Font font = new Font(hm);
PdfTrueTypeFont underlineFont = new PdfTrueTypeFont(font);
//add a simply link to pdf
String label = "Simply Link: ";
PdfStringFormat format = new PdfStringFormat();
format.setMeasureTrailingSpaces(true);
page.getCanvas().drawString(label, plainFont, PdfBrushes.getOrange(), 0, y,format);
x = (float)plainFont.measureString(label,format).getWidth();
page.getCanvas().drawString("https://www.e-iceblue.com", underlineFont, PdfBrushes.getBlue(), x, y+2);
y = y + 26;
//add a hyper text link to pdf
label= "Hypertext Link: ";
page.getCanvas().drawString(label, plainFont, PdfBrushes.getOrange(), 0, y, format);
x = (float)plainFont.measureString(label,format).getWidth();
PdfTextWebLink webLink = new PdfTextWebLink();
webLink.setText("Home Page");
webLink.setUrl("https://www.e-iceblue.com");
webLink.setFont(plainFont);
webLink.setBrush(PdfBrushes.getBlue());
webLink.drawTextWebLink(page.getCanvas(), new Point2D.Float(x, y));
y= y + 26;
//add an email link to pdf
label = "Email Link: ";
page.getCanvas().drawString(label, plainFont, PdfBrushes.getOrange(), 0, y, format);
x = (float)plainFont.measureString(label, format).getWidth();
webLink = new PdfTextWebLink();
webLink.setText("Contact Us");
webLink.setUrl("mailto:support@e-iceblue.com");
webLink.setFont(plainFont);
webLink.setBrush(PdfBrushes.getBlue());
webLink.drawTextWebLink(page.getCanvas(), new Point2D.Float(x, y));
y = y + 26;
//add a document link to pdf
label = "Document Link: ";
page.getCanvas().drawString(label, plainFont, PdfBrushes.getOrange(), 0, y, format);
x = (float)plainFont.measureString(label, format).getWidth();
page.getCanvas().drawString("Open File", plainFont, PdfBrushes.getBlue(), x, y, format);
Rectangle2D rect = new Rectangle2D.Float(x,y+2,60,15);
PdfFileLinkAnnotation fileLinkAnnotation = new PdfFileLinkAnnotation(rect,"C:\\Users\\Administrator\\Desktop\\Image.png");
fileLinkAnnotation.setBorder(new PdfAnnotationBorder(0f));
((PdfNewPage) ((page instanceof PdfNewPage) ? page : null)).getAnnotations().add(fileLinkAnnotation);
//save to file
doc.saveToFile("output/AddLinks.pdf");
doc.close();
}
}
Output:
