Second, the images can be compressed locally. Alternatively, the media directories within wp-content/uploads, usually named according to years and months ( 2018/01, 2018/02 etc.) can be downloaded individually. The easiest way is to download the full wp-content/uploads directory. Download and Compress Imagesįirst, I used a standard FTP software such as FileZilla to manually download all images. In the end, I decided to look for an alternative solution. However, plugins such as Compress JPEG & PNG Images, Smush Image Compression and Optimization or ShortPixel Image Optimiser only offer very limited free contingents for image compression - and images might be transferred to third party servers. For quite some posts and pages, however, I explicitly wanted to avoid lossy compression for showing research results in image processing or computer vision.Īfter five years of running this page, I found it is finally necessary to compress most of the left-over PNG images - for faster loading and search engine optimization.
Especially in the early phase of this webpage, I did not compress all images - yes, as a web developer, I should have known better.
At the time of writing this article, this website contains roughly 1.8k images totalling more than 400MB.
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