The best way to avoid uploading duplicate image is to check first the sites various gallery before uploading a new image on the sites gallery.
A simple tip is to check first the image gallery category that you wish to add/upload a new image unto it... example:
If you wanted to add/upload a certain YAOI image from Naruto and you don't know if the image you want to upload in the site was already uploaded or has a duplicate image of it, then you sould first check the "Naruto YAOI gallery" for you to get familiarized if the image you wanted to upload is either had a duplicate or haven't uploaded yet on the site.
We all know its time consuming upon checking every page of the sites gallery but, it's also a good way for a sites member to distinguish an image on what is duplicated and not... The good side here is that you'll get a chance to see more YAOI artworks that you might have missed or a Rare discovery of your favorite genre.
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