Code to Convert Excel Sheet To Image In Java. Refer here for more details: https://kb.aspose.com/cells/java/how-to-convert-excel-sheet-to-image-in-java/

Convert Excel Sheet To Image In Java.java

import com.aspose.cells.ImageOrPrintOptions;
import com.aspose.cells.ImageType;
import com.aspose.cells.License;
import com.aspose.cells.SheetRender;
import com.aspose.cells.Workbook;
import com.aspose.cells.Worksheet;

public class ConvertExcelSheetToImageInJava {

	public static void main(String[] args) throws Exception {//main function to convert Excel sheet to image

	    // Instantiate the license to avoid trial version watermark in the output images
	    License licenseForExcelToImage = new License(); 
	    licenseForExcelToImage.setLicense("Aspose.Cells.lic");

	    // Load the Excel file required to be converted to images
	    Workbook bookToImages = new Workbook("MyTestBook1.xlsx");

	    // Create an instance of ImageOrPrintOptions to customize the output images
	    ImageOrPrintOptions exportedImgOptions = new ImageOrPrintOptions();

	    // Set the flag to auto-fit column width of each cell according to the size of contents 
	    exportedImgOptions.setCellAutoFit(true);

	    // Set the image type to JPEG exported from the Excel worksheet
	    exportedImgOptions.setImageType(ImageType.JPEG);

	    // Select the sheet from the collection that is to be rendered to images
	    Worksheet sheetToImage = bookToImages.getWorksheets().get(0);

	    // Create and initialize an instance of SheetRender with target sheet and image configurations
	    SheetRender sheetRenderToImage = new SheetRender(sheetToImage, exportedImgOptions);

	    // Parse through all the pages in sheet to render as image
	    for (int j = 0; j < sheetRenderToImage.getPageCount(); j++) 
	    {
	      // Save each image to file generated by the SheetRender class object 
	      sheetRenderToImage.toImage(j, "ToImage-out" + j + ".jpg");
	    }
	    System.out.println("Done");
	}
}