As its name doesn’t suggest, the app also let you compress JPEG files now, which is awesome. It’s also free and open source.Ī web app that allows you to compress PNG files while still keeping full alpha transparency. It works on Windows and can be used also for compressing HTML, CSS, or JS files as well, so it’s a pretty cool tool for developers. It goes way beyond simply compressing pictures, but it seems to work the best for PNG files. ImageOptim is free and Open Source software.įileOptimizer allows for compression of tons of file formats. It can even further compress images that have been saved for web with Photoshop, which is pretty cool. It optimizes compression parameters, removes junk metadata and unnecessary color profiles. It works by taking the best scripts to optimize images for each format, like PNGOUT or Gifsicle. The best part, FILEminimizer is free software.Īn OSX app that perfectly integrates with Apple’s design style and is extremely easy to use. For social media addicts, it even let you upload images directly to Facebook. The interface is very classic, but easy to use, and it allows you to choose your compression level and give you the possibility to batch process images. I use it now to compress images before uploading on Designer Daily, as it’s probably the best on the market for lossless JPEG compression. FILEminimizerĪ Windows-only software that let you compress all kinds of image formats: JPEG, BMG, GIF, TIFF, PNG, or EMF. Here are some of the tools you can consider if you want to reduce your images sizes before using them on your website. Images are often one of the heavy elements of a web pages, so using the optimal compression is important, make the page smaller and make sure it still looks good. The fastest your site loads, the more successful it will be. Despite fast internet speeds, small size internet pages are crucial for faster load. For printing, the most important thing should be the quality of the image.įor web designers, it’s another story. As Magill said, some of these compressions are imperceptible to the human eye, (but potentially can cause some issues when printed) but you can still use them as JPG.If you are a graphic designer, you probably don’t think to much about size when you need to compress images. You take some photos saved on JPG format directly from the camera, and you can save JPG files using the correct parameters. On a normal everyday life project yes, you can use JPG. You start with a RAW image, save it as a 1 bit PSD file, which can be saved as a TIF lossless compression format to be printed. On some more professional environments, you do not use JPG at all. You most likely want to deliver the maximum quality print you can. Do not use any online website, which you do not know the sub settings used to compress your images. You probably need to send the full page in vectors, not in raster format.Īs a last resource, simply use PShop to resample a copy of the photos. You probably do not need 300PPI, you probably need only 200PPI.Ĭolor modes, you most likely do not need CMYK, send them in RGB. If for some reason your "online provider" limits the size of the files you can upload, first check some other things. There are different methods for JPG compression, which gives different results, some of them less file size, but some of them lose more info. Sorry, this old webpage of mine is not translated in English but it is only to show you a method to analyze this information lose. Any aditional compression to reduce file size lose information. Sometimes "quality" means speed, on a website, you need to load your images fast, or the viewer will leave.īut on a printed project "speed" is not an issue. Quality is a process, you do not "lose quality", you decide your quality parameters.
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