Cloudinary Blog

PNG optimization - saving bandwidth on transparent PNGs with dynamic underlay
There are many ways to optimize PNG files, but one optimization which is commonly overlooked involves the PNG's transparent background. If you’ve chosen to use PNGs instead of a more compact format like JPG, mainly for the PNG's support of a transparent background (alpha channel), read on and see how dynamic underlays can reduce your file size by as much as 1:5.
 
Graphic designers of sites and apps sometimes wish to display clipped photos on top of a certain background. A common example is a news site that shows a head shot of the author, or a figure mentioned in the article. Typically, the images are clipped using photo editing software like Photoshop, and then they can then be placed above background colors, patterns and between text paragraphs. 
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Online website screenshots with URL2PNG and Cloudinary
Thumbnails of website screenshots are a common visual design element. Search engines, such as Google, display webpage screenshots in their search results. Social news sites, such as DZone, embed screenshot thumbnails of shared pages. Bloggers and technology news sites embed screenshots of company websites and online services they discuss in their posts. Development companies embed screenshots of websites they helped develop.
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Image cloud storage, auto-migrate images to the cloud
Website developers and administrators today tend to find themselves managing quite a few files, images and other media assets. Whether you upload content to your web application yourself, allow your users to upload files or have files imported from content partners, you'll need to handle the upload process, storage, and possibly thumbnail creation required to showcase your assets online.
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Secure image manipulation with signed URLs
Modern web sites and mobile applications frequently showcase a rich set of images with various sizes and dimensions. Such services can even have their graphics, image resolutions and overall look & feel vary between different devices (desktop, mobile, etc.), and may change dramatically with constant upgrades.
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Embed Instagram, Google+ profile pictures in your site
Many modern web and mobile applications include integral social aspects as parts of their online solution. 
 
Users can sign-in to these services and be identified by their chosen social identity. This is made quite straightforward by leveraging single sign-on services such as Facebook Connect, Twitter, Google+ and others. After signing in, activities in the service and user generated content can be accompanied with the real name of the users as well as their profile pictures.
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WebP file format - saving bandwidth and improving UX
Modern image compression techniques have had a large impact on our lifestyle. Digital cameras can save thousands of high-quality photos on a single memory card, smartphones can quickly share high resolution images on-the-fly, and websites and mobile apps can show rich media quickly. All of this just couldn,t have worked if image data was stored at its original, raw form. 
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Two decades ago websites had such a simple usage flow. Web servers returned complete HTML pages and each user action required that a new HTML page be reloaded from the server. Later on Ajax joined the game allowing dynamic updating of specific web page fragments via simple Javascript requests to the server. Google's wide-spread use of Ajax with Gmail was simply mind blowing at the time. Today's product requirements wouldn't settle even for that.
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