Converting a CGM file to an APNG image in Java is a simple two-step process. The first step is to use Aspose.PDF for Java, a powerful PDF manipulation library, to export the CGM file to a JPEG image. Aspose.PDF for Java is part of the Aspose.Total for Java package, which includes a wide range of APIs for manipulating various file formats.
Once the CGM file has been converted to a JPEG image, the second step is to use Aspose.Imaging for Java, an image processing API, to render the JPEG image to an APNG image. Aspose.Imaging for Java provides a comprehensive set of features for manipulating images, including the ability to convert between different image formats.
By following these two simple steps, you can easily convert a CGM file to an APNG image in Java. Aspose.PDF for Java and Aspose.Imaging for Java are both part of the Aspose.Total for Java package, which makes it easy to access the necessary APIs for this conversion. With these two APIs, you can quickly and easily convert CGM files to APNG images in Java.
Convert CGM to APNG in a Single File via Java
The API also allows you to export CGM file to APNG to a single file. In order to convert all pages, you can first render your CGM document to one TIFF file and after that, you can export the TIFF file to APNG. You can open the input file using Document class and create Resolution, TiffSettings, & TIFF device objects. You can get a single TIFF image using process method of TiffDevice class. Finally, you can load TIFF file using Image class and save it to APNG format using save method.
Convert CGM to APNG With Watermark via Java
Using the API, you can also export CGM file to APNG with watermark in your APNG document. In order to add a watermark to you can first convert CGM to JPEG and add a watermark in it. In order to add watermark, load an image file using the Image class, create an object of the Graphics class and initialize it with Image object, create a new Matrix object and set translation and transformation to the desired angle and add watermark using Graphics.drawString method. After adding the watermark in your image, you can save the JPEG as APNG format.
Convert & Rotate CGM to APNG File via Java
Using the API, you can also rotate the output APNG image as per your needs. The Image.rotateFlip method can be used to rotate the image by 90/180/270-degrees and flip the image horizontally or vertically. The library provides simple methods to perform complex operations while encapsulating all ugly details. You can specify the type of rotation and flip to apply to the image. In order to rotate and flip the image, you can load the converted JPEG image using the Image class and call the Image.rotateFlip method while specifying the appropriate RotateFlipType .