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// For complete examples and data files, please go to https://github.com/groupdocs-viewer/GroupDocs.Viewer-for-Java
try {
	// Setup GroupDocs.Viewer config
	ViewerConfig config = Utilities.getConfiguration();
	// Create image handler
	ViewerImageHandler imageHandler = new ViewerImageHandler(config);
	String guid = fileName;

	// Set image options NOT to include ANY transformations
	ImageOptions noTransformationsOptions = new ImageOptions();
	// This is set by default
	noTransformationsOptions.setTransformations(Transformation.None);

	// Get image representation of all document pages, without
	// transformations
	List<PageImage> pagesWithoutTransformations = imageHandler.getPages(guid, noTransformationsOptions);

	// Get image representation of all document pages, without
	// transformations
	List<PageImage> pagesWithoutTransformations2 = imageHandler.getPages(guid);
	for (PageImage page : pagesWithoutTransformations) {
		Utilities.saveAsImage(page.getPageNumber() + "_" + fileName, "png", page.getStream());
	}
} catch (Exception exp) {
	System.out.println("Exception: " + exp.getMessage());
	exp.printStackTrace();
}