Steps for adding an image, sound clip or video clip to Wikipedia:

1. The vast majority of images and multimedia files found on the Internet are not suitable for use on Wikipedia. Please make sure the upload is acceptable for Wikipedia before uploading it and if in doubt, ask. Is your upload free content? If not, does it meet the requirements at Wikipedia:Non-free content criteria?
2. Select a descriptive filename for your upload. For example, "cat.jpg" is bad, while "Mongolian shorthair cat sleeping.jpg" is good.
3. Provide some basic information on the upload. Where did it come from? Who created it and when? What is this an image or clip of? If it's a non-free image or multimedia file, why does it meet the non-free content criteria? {{Information}} is a good template to use for this purpose.
4. Provide copyright information for the upload, either from the drop-down menu or from the lists at Wikipedia:Image copyright tags. If you can't find anything appropriate, please ask at Wikipedia:Media copyright questions before uploading.
5. Click "Upload file". After uploading, add the file to the article. See Wikipedia:Uploading images#Adding images to articles for details.

For an overview of using media files on Wikipedia, see Wikipedia:Creation and usage of media files and Wikipedia:Image use policy.
If you upload content in the public domain or a Creative Commons license, that license is irrevocable.