Make Tech Easier: JPG vs. PNG vs. GIF: The Differences Between Image File Formats. “A rose by any other name may smell as sweet, as Shakespeare says in Romeo and Juliet, but if you take a picture of that rose and save it as a JPEG with high compression, you may experience a decline in image quality. It’s no problem, though, since you also have the option to use PNG, TIFF, GIF, SVG, or even a new format like HEIC or WebP. Some of those formats would look great on the Capulet family newsletter, while others would fit in better on Romeo’s blog, so decoding these file types can be pretty useful.”
MakeUseOf: The Essential Ebook Converter Guide. “When it comes to ebooks there are more than a dozen common file types. And each of these has different strengths and is compatible with different ereaders. Which is why you might find yourself in need of an ebook converter. In this article, we’ll explain everything there is to know about converting ebooks.”
Hongkiat: Minify & Optimize JPG Images Online with Jpeg.io. “The free tool Jpeg.io lets anyone convert their existing images into optimized JPEG files without any software. You simply upload your images and the website does everything for you on the backend.” Decent overview of how it works.
Hack A Day: Shakespeare In A Zip In A RAR, Hidden In An Image On Twitter. “Steganography involves hiding data in something else — for example, encoding data in a picture. [David Buchanan] used polyglot files not to hide data, but to send a large amount of data in a single Twitter post. We don’t think it quite qualifies as steganography because the image has a giant red UNZIP ME printed across it. But without it, you might not think to run a JPG image through your unzip program. If you did, though, you’d wind up with a bunch of RAR files that you could unrar and get the complete works of the Immortal Bard in a single Tweet. “
Library of Congress: Data Mining Memes in the Digital Culture Web Archive. “As part of an effort to analyze how comprehensive our web crawls are, we ended up deriving data that we realized may be potentially useful for users of the collection. In working on methods to track the number of various kinds of files in individual web archives, Chase Dooley, a Digital Collections Management Specialist on the Web Archiving Team here in the Digital Content Management section, was able to generate lists of the individual GIFs and Memes in these web archives. For these kinds of web archives, researchers often want to explore data about these resources more than they want to replay what the site looked like at a given point in time.”
Digital Trends: The best free video converters. “What good is having a super-compressed MPEG4 video if you can’t watch it on whatever device you choose? Sure, that movie may look phenomenal in high-definition on your desktop, but it can be a pain to watch on your home console, tablet, or smartphone. Luckily, quality video converters have been around for several years, allowing users to convert their precious video footage into a number of desirable formats. Best of all, most of them are completely free.”
How-To Geek: How to Open (or Convert) a Photoshop File If You Don’t Have Photoshop. “Photoshop is a popular and powerful graphics editing tool, but what do you do if you need to open a PSD file and don’t have Photoshop? We have several solutions for you that don’t involve buying (or renting) an expensive copy of Photoshop.”