Giving good names to your pictures and medias could mean great advantages: - It's much easier to navigate in your wordpress media library. - the effect on SEO should be effective. - Your website accessibility is getting better. Indeed instead of reading an abstract and useless filename as "PIC30945.jpg" we can read to an easily understandable "photo-ramen-vegan-july-2019.jpg." In my article, I telling you how I have edited +500 already uploaded medias filenames. It was quite easy and quick, thanks to 2 free plugins.