Add Text Watermark to GIF images via C#
Build your own .NET apps to watermark GIF image files using server-side APIs
Aspose.Imaging for .NET
Overview
How to Watermark GIF File Using C#
A watermark is an essential tool for authors seeking maximum exposure for their work on the internet. Placing a watermark on an image serves not only to identify its source or copyright holder but also to promote its creator. This is because the signature containing the author’s name or the internet resource’s name is distributed alongside a digital copy of the image. Watermarks can take the form of text with a wide range of fonts and can be positioned at the image’s edge. When the watermark is transparent, it doesn’t disrupt viewing. However, if the author or copyright holder wishes to emphasize their name, the watermark may partially overlap the image. In order to watermark GIF image file, we’ll use Aspose.Imaging for .NET API which is a feature-rich, powerful and easy to use image manipulation and conversion API for C# platform. Open NuGet package manager, search for Aspose.Imaging and install. You may also use the following command from the Package Manager Console.
Package Manager Console Command
PM> Install-Package Aspose.Imaging
Steps to Add Watermark to GIF via C#
You need the aspose.imaging.dll to try the following workflow in your own environment.
- load GIF file with Image.Load method;
- create instance of Graphics from the Image;
- define Font, Brush and Format for watermark text;
- draw watermark using Graphics.DrawString method;
- save image to disc in GIF format.
System Requirements
Aspose.Imaging for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.
- Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Windows Application, ASP.NET Web Application.
- Development environment like Microsoft Visual Studio.
- Aspose.Imaging for .NET referenced in your project.
Watermark GIF image - .NET
About Aspose.Imaging for .NET API
Aspose.Imaging API is an image processing solution to create, modify, draw or convert images (photos) within applications. It offers: cross-platform Image processing, including but not limited to conversions between various image formats (including uniform multi-page or multi-frame image processing), modifications such as drawing, working with graphic primitives, transformations (resize, crop, flip&rotate, binarization, grayscale, adjust), advanced image manipulation features (filtering, dithering, masking, deskewing), and memory optimization strategies. It’s a standalone library and does not depend on any software for image operations. One can easily add high-performance image conversion features with native APIs within projects. These are 100% private on-premise APIs and images are processed at your servers.Watermark GIF via Online App
Add watermark to GIF documents by visiting our Live Demos website The live demo has the following benefits
GIF What is GIF File Format
A GIF or Graphical Interchange Format is a type of highly compressed image. Owned by Unisys, GIF uses the LZW compression algorithm that does not degrade the image quality. For each image GIF typically allow up to 8 bits per pixel and up to 256 colours are allowed across the image. In contrast to a JPEG image, which can display up to 16 million colours and fairly touches the limits of the human eye. Back when the internet emerged, GIFs remained the best choice because they required low bandwidth and compatible for the graphics that consume solid areas of colour. An animated GIF combines numerous images or frames into a single file and displays them in a sequence to generate an animated clip or a short video. The colour limitations are up to 256 for each frame and are likely to be the least suitable for reproducing other images and photographs with colour gradient.
Read MoreOther Supported Watermarking Formats
Using C#, you can easily watermark different formats including: