How Can I Draw On A Pdf

In this commodity, we volition learn how to Draw a line in a PDF certificate using Java. For drawing a line in a PDF, we will employ the iText library. These are the steps that should be followed to Describe a line in a PDF using java.

ane. Creating a PdfWriter object

The PdfWriter class represents the DocWriter for a PDF. The constructor of this class accepts a string, i.e. the path of the file where the PDF is to be created.

// importing the PdfWriter class. import com.itextpdf.kernel.pdf.PdfWriter;  // path where the pdf is to be created. String path = "F:/JavaPdf/DrawLine.pdf"; PdfWriter pdfwriter = new PdfWriter(path);

ii. Creating a PdfDocument object

The PdfDocument class is that the class that represents the PDF Document in iText, To instantiate this course in write style, you would like to laissez passer an object of the category PdfWriter (i.e. pdfwriter from above lawmaking) to its constructor.

// Creating a PdfDocument  object. // passing PdfWriter object constructor of pdfDocument. PdfDocument pdfdocument = new PdfDocument(pdfwriter);        

3. Creating the Document object

The Document course is the root chemical element when creating a cocky-sufficient PDF. I of the constructors of this class accepts an object of the blazon PdfDocument course(i.due east. pdfdocument).

// Creating a Document and passing pdfDocument object   Document certificate = new Document(pdfdocument);

four. Creating a PdfCanvas object

Before Instantiate the PdfCanvas object, Nosotros take to create a new pdfPage object as nosotros demand to laissez passer pdfPage object to the constructor of PdfCanvas form.

// Creating a new page  PdfPage pdfPage = pdfdocument.addNewPage();             // instantiating a PdfCanvas object  PdfCanvas canvas = new PdfCanvas(pdfPage);        

5.Drawing the line and endmost the path stroke, certificate.

Set the starting point of the line using the moveTO() method of the Canvas class and  draw till the endpoint using the lineTo() method of the Canvas class.

// starting signal of the line  canvas.moveTo(100, 300);   // Cartoon the line till the stop point. canvass.lineTo(500, 300);   // Shut the path stroke canvas.closePathStroke();   // Shut the document  document.shut();        

Dependencies for executing the beneath plan:

kernel-vii.1.13.jar  layout-7.1.13.jar

Example: Code to depict a line in a PDF certificate using java.

Java

import com.itextpdf.kernel.pdf.PdfDocument;

import com.itextpdf.kernel.pdf.PdfPage;

import com.itextpdf.kernel.pdf.PdfWriter;

import com.itextpdf.kernel.pdf.canvass.PdfCanvas;

import com.itextpdf.layout.Document;

public course DrawLine {

public static void main(String args[]) throws Exception

{

try {

Cord path = "F:/JavaPdf/DrawLine.pdf" ;

PdfWriter pdfwriter = new PdfWriter(path);

PdfDocument pdfdocument

= new PdfDocument(pdfwriter);

Certificate document = new Document(pdfdocument);

PdfPage pdfPage = pdfdocument.addNewPage();

PdfCanvas canvas = new PdfCanvas(pdfPage);

sail.moveTo( 100 , 500 );

canvass.lineTo( 500 , 500 );

sheet.closePathStroke();

document.shut();

Organization.out.println(

"drawn the line successfully" );

}

take hold of (Exception e) {

Organization.out.println(

"Failed to draw the line due to " + e);

}

}

}

Compile and execute the programme using the post-obit commands

javac RotateImage.java  java RotateImage

Output

fatigued the line successfully

PDF

Source: https://www.geeksforgeeks.org/drawing-a-line-in-a-pdf-document-using-java/

Posted by: dejesustheral83.blogspot.com

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