Help:Upload
From HGWiki
Many contributions to the Wiki are enhanced with images or sounds to illustrate the subject of the article. To upload to the wiki, use the Upload page.
Please try to avoid uploading duplicate images. To see a list of all items that have been uploaded, view the Image List page.
The wiki will host its own pictures - meaning you will not have to use a 3rd party image hosting service to view your images on the wiki. Simply upload the picture from your computer directly to the wiki. The wiki accepts gif, png, jpg, jpeg, pdf, wav, mp3, ogg (media) files.
Please try to edit your picture appropriately before uploading. If that is not possible, upload the entire image then size it use Wiki Markup.
If you need assistance taking a screenshot from within NWN, please refer to our screenshot thread.