Using your WP Plugin with your PS Plugin

Hi,

Thanks for the compliments!

To answer your question, the WordPress plugin currently always assumes that the image that you upload in WordPress is not optimised yet. Therefore, if you would upload an image that’s already optimised with our Photoshop plugin (or website for that matter) to your WordPress site, our plugin will still attempt to optimise it.

We could make it smarter by storing some extra metadata in the optimised images, but that would make the images a bit bigger again, which we try to prevent.

What you could do instead perhaps, is enable the WordPress plugin so you can bulk compress the existing images in your Media Library so that all your current images are optimised. If you then decide that it’s handier or cheaper to use our Photoshop plugin, you can easily disable the plugin, so that new images (that are then already optimised) are not processed again.

Great info, thanks for the clarification!

One more question: Using the WP Plugin only, if you do the compress all to option, then later go through and do the compress all option again, will the plugin further compress the images it’s already done in the past, degrading the quality, or are they marked somehow so the plugin knows to skip over items it has already done before?

For each image in your Media Library that is compressed with our plugin, we store metadata information in the WordPress database. In this we store which sizes have been compressed, and what the resulting file size is for each size.
When you for example add additional sizes to be compressed, our plugin would notice that, and only compress the newly added sizes.

Since it also stores the file size of the resulting compressed image in the metadata, changing the file on the filesystem would result in the image being compressed again.

In case you don’t change anything to the images on the filesystem, then bulk compressing your images again should only compress missing sizes. In cases all your images have all image sizes compressed, and it shows this in the Media Library under the list view, then compressing again will not do anything to your already compressed sizes, and it will not count in your monthly totals.