Mrkunlex
Step (1)Click on Settings → Media option in WordPress.
Step (2) The Media Settings page is displayed.
Following are the details of the fields on Media settings
-Thumbnail size: Set the size of the thumbnail.
-Medium size: Set the height and width of medium size images.
-Large size: Set width and height of larger images.
-Uploading files: After checking this checkbox, the uploaded image will be arranged into year and
month based folder.
-Step (3) After setting the dimension in pixels, click on Save Changes button. It saves your media setting information.