Convert Tiff file to JPG/PNG using Java.

How to convert a tiff(tif) file to JPG/PNG using Java.

While dealing with the tiff file, we may have the problem that some browser doesn't support it. Please visit for image format support for different browser here. In this tutorial, we are going to convert the tiff file to a jpg or png file format in an efficient way.

Dependencies required.

In order to convert tiff to other image formats, we are using Jai image i/o  library. Download the jar file from here. As we are using lib version "jai-imageio-core-1.4.0" here, you can find jar file under Assets. Load the jar file in your IDE or if you have existing projects like Maven or Gradle add the dependency as below.

For Gradle:

Add in build.gradle under "dependencies"

compile 'com.github.jai-imageio:jai-imageio-core:1.4.0'

For Maven:

Add in pom.xml

 <dependencies>
    <dependency>
        <groupid>com.github.jai-imageio</groupid>
        <artifactid>jai-imageio-core</artifactid>
        <version>1.4.0</version>
    </dependency>
</dependencies>

Convert Tiff to PNG/JPG

Let's create a class called "TiffConverter.java"

TiffConverter.java:

public static void main(String[] args) {
        File tiffFile = new File("/home/360learntocode/im.tif"); //input path to tif file
        String outputPath = "/home/360learntocode/"; //output path to write file
        String convertFormat = "jpg"; //jpg, png, bmp
        try {
            TiffConverter.convertTiff(tiffFile, outputPath, convertFormat);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

Provide the appropriate input and output path. You can provide the desired conversion format. As the conversion will reduce the pixel value of the image for jpg, png although BMP conversion doesn't reduce the pixel value.

private static File convertTiff(File tiffFile, String outputPath, String convertFormat) throws IOException {
        String fileName = tiffFile.getName();
        String ext = getFileExtension(fileName);
        fileName = fileName.replace(ext, "."+convertFormat);
        BufferedImage tiff = ImageIO.read(tiffFile);
        File output = new File(outputPath + fileName);
        ImageIO.write(tiff, convertFormat, output);
        return output;
    }

We are using the library to manipulate and convert the tif file. BufferedImage is used to handle and manipulate the image data. For more visit here.

  //get file extension from file name
    private static String getFileExtension(String fileName) {
        int lastIndexOf = fileName.lastIndexOf(".");
        return fileName.substring(lastIndexOf).toLowerCase();
    }
 

Finally, we successfully converted the Tiff/Tif File to the desired format like jpg, png, BMP.

The overall implementation looks like as below:

 import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;


public class TiffConverter {

    public static void main(String[] args) {
        File tiffFile = new File("/home/360learntocode/im.tif"); //input path to tif file
        String outputPath = "/home/360learntocode/"; //output path to write file
        String convertFormat = "jpg"; //jpg, png, bmp
        try {
            TiffConverter.convertTiff(tiffFile, outputPath, convertFormat);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static File convertTiff(File tiffFile, String outputPath, String convertFormat) throws IOException {
        String fileName = tiffFile.getName();
        String ext = getFileExtension(fileName);
        fileName = fileName.replace(ext, "."+convertFormat);
        BufferedImage tiff = ImageIO.read(tiffFile);
        File output = new File(outputPath + fileName);
        ImageIO.write(tiff, convertFormat, output);
        return output;
    }

    //get file extension from file name
    private static String getFileExtension(String fileName) {
        int lastIndexOf = fileName.lastIndexOf(".");
        return fileName.substring(lastIndexOf).toLowerCase();
    }
}

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