I know alt tag questions have been asked before but I wanted see if anyone knew the specifics of what can and cannot be accomplished with the alt tag and to see if I have any other viable options.
I've got a website that combines text with videos, audio and pictures to tell a story. But the text is not built into the text of the web page, it is displayed as a chunk of words in a specific font inside a few different images. This gives all of the stories and text a personalized feel but obviously this limits what gets cataloged by search engines.
I figured a sensible solution would be to just dump the text into the alt tags of every image but I'm concerned the majority of it won't be accounted for and may even come up as spam. Text usually ranges from 50-150 words for each image and there are usually plenty of words that repeat, since it's a story. Does anyone know if there is a limit to how long an alt tag can be or if this might be getting targeted as spam? Also, is there a better way to get search engines to record this text since they will obviously will not record it as such when its displayed inside images?