WordPress Image Defaults When you upload an image to WordPress, it goes into your Media Library. Then, WordPress generates 3 copies of it at default sizes: thumbnail (150x150 pixels square), medium (300x300 pixels maximum), and large (1024x1024 pixels maximum). Your theme settings may vary or include other sizes in addition to these defaults. The thumbnails, used in in the blog archive list and image galleries (among other things), automatically cut off parts of the original image. Sometimes … [Read more...] about Cropping Thumbnails in WordPress