javaservletssvgpng

Convert svg image to png in java by servlet


Here, I am trying to send a SVG image to local server and in output I want to download that image in PNG / JPEG format.

While I have found some solutions but those are done by BATIK libraries, but in my Eclipse BATIK libraries are not supported , so I can't use the batik libraries.


Solution

  • Use batik library. Below is the code.

        import java.io.*;
        import org.apache.batik.transcoder.image.PNGTranscoder;
        import org.apache.batik.transcoder.TranscoderInput;
        import org.apache.batik.transcoder.TranscoderOutput;
        import java.nio.file.Paths;
        import java.nio.file.Path;
        public class svg2png {
            public static void main(String[] args) throws Exception {
                //Step -1: We read the input SVG document into Transcoder Input
                //We use Java NIO for this purpose
                String svg_URI_input = Paths.get("chessboard.svg").toUri().toURL().toString();
                TranscoderInput input_svg_image = new TranscoderInput(svg_URI_input);        
                //Step-2: Define OutputStream to PNG Image and attach to TranscoderOutput
                OutputStream png_ostream = new FileOutputStream("chessboard.png");
                TranscoderOutput output_png_image = new TranscoderOutput(png_ostream);              
                // Step-3: Create PNGTranscoder and define hints if required
                PNGTranscoder my_converter = new PNGTranscoder();        
                // Step-4: Convert and Write output
                my_converter.transcode(input_svg_image, output_png_image);
                // Step 5- close / flush Output Stream
                png_ostream.flush();
                png_ostream.close();        
            }
    }
    

    Hope it will help you.

    Refer this: http://thinktibits.blogspot.com/2012/12/Batik-Convert-SVG-PNG-Java-Program-Example.html