Convert CGM file to Image via C#
Export CGM to Images within .NET applications without using Adobe® Acrobat Reader or any other third party applications
With Aspose.Total for .NET, you can easily export CGM files to various image formats within any .NET application in just two simple steps. First, using Aspose.PDF for .NET, you can export CGM to JPEG format. Afterward, by utilizing Aspose.Imaging for .NET Image Processing API, you can convert the JPEG image to a wide range of image formats.
By combining the power of Aspose.PDF for .NET and Aspose.Imaging for .NET, you can seamlessly convert CGM files to popular image formats like JPEG, PNG, TIFF, GIF, BMP, and more. This versatility enables you to integrate image conversion capabilities into your .NET applications, catering to diverse requirements and preferences.
Convert CGM file to Image via .NET
- Open CGM file using Document class
- Initialize JpegDevice class object and render CGM to JPEG by using Process method
- Load JPEG file by using Image class
- Save the document to JPEG2000 format using Save method
Conversion Requirements
Install from command line as nuget install Aspose.Total or install directly from Package Manager Console of Visual Studio.
Two Aspose.Total for .NET child APIs, Aspose.PDF for .NET and Aspose.Imaging for .NET will be used.
Alternatively, get the offline MSI installer or DLLs in a ZIP file from downloads .
| // supports PDF, CGM, EPUB, TeX, PCL, PS, XPS, MD, MHTML, XSLFO, HTML file formats | |
| // load PDF with an instance of Document | |
| var document = new Document("input.pdf"); | |
| // create an object of jpegDevice | |
| var renderer = new JpegDevice(); | |
| // convert a particular page and save the image in JPEG format | |
| renderer.Process(document.Pages[1], "output.jpeg"); | |
| // load JPEG file | |
| var image = Image.Load("output.jpeg"); | |
| // supports Dicom, Jpeg2000, Apng, Psd, Dxf, Wmf, Emz, Wmz, Tga, Svgz file formats | |
| // save JPEG to PSD file format | |
| image.Save("output.psd", new PsdOptions()); |
Convert CGM File to Image in a Single File via C#
Using the API, you can also convert CGM file to Image to a single image file. In order to convert all pages, you can first render your CGM document to one TIFF file and after that you can export TIFF file to Image. 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 JPEG2000 format using Save method.
| // supports PDF, CGM, EPUB, TeX, PCL, PS, XPS, MD, MHTML, XSLFO, HTML file formats | |
| // Open PDF document | |
| Document pdfDocument = new Document("input.pdf"); | |
| // Create Resolution object | |
| Resolution resolution = new Resolution(300); | |
| // Create TiffSettings object | |
| TiffSettings tiffSettings = new TiffSettings | |
| { | |
| Compression = CompressionType.None, | |
| Depth = ColorDepth.Default, | |
| Shape = ShapeType.Landscape, | |
| SkipBlankPages = false | |
| }; | |
| // Create TIFF device | |
| TiffDevice tiffDevice = new TiffDevice(resolution, tiffSettings); | |
| // Convert a particular page and save the image to stream | |
| tiffDevice.Process("output.tif"); | |
| // load TIFF file | |
| var image = Image.Load("output.tif"); | |
| // supports Dicom, Jpeg2000, Apng, Psd, Dxf, Wmf, Emz, Wmz, Tga, Svgz file formats | |
| // save TIFF to PSD file format | |
| image.Save("output.psd", new PsdOptions()); |
Convert CGM to Image With Watermark via C#
Using the API, you can also convert CGM file to Image with watermark in your Image document. In order to add a watermark, you can first render your CGM document to JPEG and add a watermark in it. To demonstrate the operation, you can load your converted JPEG image, add transformations using an object of Matrix class and draw a string as the watermark on the image surface using the Graphics class’ DrawString method. After adding the watermark in it, you can save the JPEG as JPEG2000 format. Below is a code example that demonstrates how to add a diagonal watermark to your document.
| // supports PDF, CGM, EPUB, TeX, PCL, PS, XPS, MD, MHTML, XSLFO, HTML file formats | |
| // load PDF with an instance of Document | |
| var document = new Document("input.pdf"); | |
| // create an object of jpegDevice | |
| var renderer = new JpegDevice(); | |
| // convert a particular page and save the image in JPEG format | |
| renderer.Process(document.Pages[1], "output.jpeg"); | |
| // load an existing JPEG image | |
| Image image = Image.Load("output.jpeg"); | |
| // declare a String object with Watermark Text | |
| string theString = "45 Degree Rotated Text"; | |
| // create and initialize an instance of Graphics class and Initialize an object of SizeF to store image Size | |
| Graphics graphics = new Graphics(image); | |
| SizeF sz = graphics.Image.Size; | |
| // create an instance of Font, initialize it with Font Face, Size and Style | |
| Font font = new Font("Times New Roman", 20, FontStyle.Bold); | |
| // create an instance of SolidBrush and set its various properties | |
| SolidBrush brush = new SolidBrush(); | |
| brush.Color = Color.Red; | |
| brush.Opacity = 0; | |
| // initialize an object of StringFormat class and set its various properties | |
| StringFormat format = new StringFormat(); | |
| format.Alignment = StringAlignment.Center; | |
| format.FormatFlags = StringFormatFlags.MeasureTrailingSpaces; | |
| // create an object of Matrix class for transformation | |
| Matrix matrix = new Matrix(); | |
| // first a translation then a rotation | |
| matrix.Translate(sz.Width / 2, sz.Height / 2); | |
| matrix.Rotate(-45.0f); | |
| // set the Transformation through Matrix | |
| graphics.Transform = matrix; | |
| // draw the string on Image Save output to disk | |
| graphics.DrawString(theString, font, brush, 0, 0, format); | |
| // supports Dicom, Jpeg2000, Apng, Psd, Dxf, Wmf, Emz, Wmz, Tga, Svgz file formats | |
| // save JPEG to PSD file format with watermark in it | |
| image.Save("output.psd", new PsdOptions()); |
Convert & Rotate CGM File to Image via C#
Using the API, you can also rotate the output Image 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. 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 factory method exposed by Image class and call the Image.RotateFlip method while specifying the appropriate RotateFlipType .
| // supports PDF, CGM, EPUB, TeX, PCL, PS, XPS, MD, MHTML, XSLFO, HTML file formats | |
| // load PDF with an instance of Document | |
| var document = new Document("input.pdf"); | |
| // create an object of jpegDevice | |
| var renderer = new JpegDevice(); | |
| // convert a particular page and save the image in JPEG format | |
| renderer.Process(document.Pages[1], "output.jpeg"); | |
| // load JPEG file | |
| var image = Image.Load("output.jpeg"); | |
| // rotate the image | |
| image.RotateFlip(RotateFlipType.Rotate270FlipNone); | |
| // supports Dicom, Jpeg2000, Apng, Psd, Dxf, Wmf, Emz, Wmz, Tga, Svgz file formats | |
| // save JPEG to PSD file format | |
| image.Save("output.psd", new PsdOptions()); |
Transforming CGM File to IMAGE Programmatically : Use Cases
CGM (Computer Graphics Metafile) files are used to store vector graphics information, making them ideal for creating static images. However, when working with dynamic data, bitmaps like PNG become essential for image storage and distribution.
The conversion of CGM files into image formats is necessary to unlock the full potential of your visual content and presentation capabilities. This conversion enables you to:
Use Cases:
- Logo Design and Branding: Convert CGM files to create scalable vector logos, ensuring consistency across various mediums.
- Infographic Creation: Use PNG to visualize complex data in an engaging and easy-to-understand format.
- Image Editing and Manipulation: Convert CGM files to edit images, apply filters, and effects without compromising quality.
- Web Design and Development: Use PNG to create responsive images that load quickly, ensuring a seamless user experience.
- Print Design and Publishing: Convert CGM files to high-quality images for print publications, such as brochures, magazines, and newspapers.