Leprechaun: DnD: PDF-file

There has been several version of the leprechaun in the D&D universe, but I wanted to make one with my own tweak on it. I'm only uploading this because I'm trying to figure out how to upload a PDF-document onto DeviantArt. So far I haven't been able to without a preview image, yet I have seen others be able to do it. I can't get my head around it.

If any of you have any tips, please tell me in the comments.

The leprechaun's alcoholic cousin: Clurichaun

My D&D-gallery: simpleswede.deviantart.com/gal…

P.S.
I did not draw the preview image and I do not know who did. I just found it after googling leprechaun, and all credit for it goes to the original drawer.

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Update: Just added the preview image to the file itself. Honestly, I should be happy that I am able to just check my mail...