![]() ![]() This option yields a file size of 129 KB, which is still bigger than Photoshop’s and not as good in terms of quality. If so, Photoshop’s export and resize algorithm must be better than the one in Lightroom. I also exported from Lightroom using JPEG quality 30, though I’m not sure if this is directly equivalent to the Photoshop JPEG quality setting. Best if you can toggle between two images quickly as I was doing on my screen. Note that the differences are relatively minor, but present. I exported a few more samples from Lightroom, at JPEG quality 50 which results in a file of 187 KB in size and a slight reduction in quality compared to the Photoshop export which is even smaller. So it looks like Photoshop’s export option may be the best of the bunch so far, but I decided to do a bit more. The result is a file size only 111 KB in size which still looks excellent despite the low JPEG quality setting. It was also set to JPEG quality 30, optimized, resize to 1600, quality bicubic. Next, I tried the Photoshop “Save for Web & Devices” option using “JPEG Medium” which was the default. However, running the same control image though the JPEG mini site results in an image that is only 234 KB, which is a substantial savings in size over the control and, as promised, no reduction in image quality. Note, the WordPress plugin and website produce the same results, in case you were wondering. Running this image through, it gets compressed down to 553 KB, which is a minor savings. The image size is 643 KB, which is certainly not small. This might be a common way people export photos for posting online and it was my ‘control’. I took one of my photos and exported it from Lightroom with jpeg quality at 85, color space sRGB, and width on the long edge 1600. I decided to do a quick and rather non-scientific test between Lightroom, Photoshop, JPEGmini, and to see which would work the best for me. Since there is a WordPress plugin that can automatically shrink your images as you upload them, it seemed like the ideal solution to my compression workflow as it was easy and integrated into the website. To reduce the size of my images I most often used JPEGmini but then stumbled across a WordPress plugin called, which is an easy way to tie in the web service from Yahoo. I use Adobe Lightroom 4.2 for most of my image management and editing, with some work in Adobe Photoshop CS5 for some extra editing when needed. There are several methods of reducing the size of your images, here I compare four different methods, though there are certainly other methods (software). If your site visitors have to wait a long time for your site and images to load they are likely to just move on. Using the smallest images possible while preserving quality is important because small images load faster. ![]()
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