Compression of Images is used to reduce File Size of Images and a Software to Compress Images is typically called as Image Optimizer Software. This post talks in details about Compressing Images and Explores the benefits associated with the Compression process. This post also talks about the reduction in Image Quality due to Image Optimization / Compression. Finally this post talks about which types of Images are best suited for Websites and explores the benefits from Search Engine Optimization Perspective.
Compressing Of Images or Picture Files is done in two ways. The first procedure to reduce Image Size is by reducing the Image Quality and thereby reducing the Image File Size on Disk. This method of reducing Compressing Images is called as Lossy Image Optimization as it reduces the quality of the Picture Displayed by an Image File. The Second method to Compress an Image is by removing extra bits and bytes from Images which once removed do not reduce Image Quality. This Method of Image Optimization / Compression is known as Loss-less Image Compression. The above Screenshot displays an Image Optimizer Software which works on Windows 7, Windows 8 and Windows 8.1 and Compresses Images using the Loss-less Compression Method.
Image Optimization is typically done by Webmasters / Graphics Designers so as to reduce Image File Size so that it can be uploaded to Web Server with ease and then later it can be downloaded from Web Server by consuming lesser bandwidth as compared to original image. As Websites are supposed to display Images on Web Pages, selection of Image Format for Image Files is an important aspect. Bitmap Files or BMP Files consume large size on Disk and hence are not used by Web Designers to upload them on Websites. On the other hand Image File Formats like PNG, JPG and GIF consume lesser Size on Hard Disk as compared to Bitmap Files and hence are often used to display Image Files on Web Pages.
Image Files from Webpages are downloaded by Browsers and then displayed onto the Web Pages. The time taken by the Browser to download Image Files from a Web Page depends on the size of the Image File. Image Optimization Software helps to reduce Web Page Loading Time and hence help in Search Engine Optimization of a Website. Compressing Image is also useful when you do have a Bigger Image File to Upload and you do have a slow speed internet connection or the website does not allows bigger image files to be uploaded.