Now that we’ve covered the background, let’s dive in and set up a project to explore an example in action. Finally, canvas-gif will return the encoder’s data as a buffer, which we will write into a GIF file. The library will then manipulate the context and add the newly edited frame’s context to the encoder. From there, the library passes the context and other relevant information to the functions to edit the frame. Then, it transforms the UInt8Array into canvas ImageData and puts it into the CanvasRenderingContext. However, if you intend to coalesce the GIF, you’ll need to install ImageMagick.įirst, canvas-gif decodes the GIF into an UInt8Array(s) and creates a canvas instance for each frame that the GIF returns. The canvas-gif library allows you to read input GIFs as a buffer with the option to coalesce the GIF. Editing GIFs and adding text to our Node.js GIF.Using the callBack function with canvas-gif.Before diving into editing GIFs, make sure you familiarize yourself with creating and saving images with node-canvas. In this article, we will write a sample code to read and edit a GIF using canvas-gif for your next Node.js project. ![]() Canvas-gif harnesses all the superpowers of Canvas, allowing you to manipulate every part of the image beyond just adding text to each GIF frame. Editing GIFs in your Node.js project with canvas-gifĬanvas-gif is an excellent tool for accessing and editing GIF frames in Node.js projects, including adding text, furthering animations, and editing frames. Eze Sunday Follow Eze Sunday is a full-stack software developer and technical writer passionate about solving problems, one line of code at a time.
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