Automatic page update

I have a program that automatically creates a daily business report as a pdf. Is there a plugin that could get the document from a certain directory automatically every day and then post it on a wordpress page? For example I would have a page called Daily Report, and it would show a pdf file that would automatically change every day.
The program can also generate the report as HTML, so it would be even better if the plugin could get the html code and change it to the page every day.