SEOpressor is nice, but if you have any sense at all you ought to be able to get 80%+ of on page SEO done yourself. On page is not that hard if you know what keywords you are targeting for each page and SEOpressor doesn't tell you that, nor does it come up with the text you use. Use All in One SEo pack on WP and you should be fine, just add the Alt tags and off you go.

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