Maybe.
BE mindful of copyright issues. If you have downloaded the obituary from the internet, the newservice owns the copyright or the provider may own the rights to the scan. Be very careful of posting copyrighted material.
Remember to cite the source, even on images. There is a box for this on the image page.
If the obit is old it may no longer be in copyright, so it's probably safe
Facts themselves are not copyrighted. Use them freely citing the source for your facts eg. <ref>"Mary Janes Dead". The London Times (London, England). May 5, 1987, pg 4 col. 3. Original copy in possession of me</ref>