img src="http://render2.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6%3DzqH%3AxxqUD7qRUrKxzX7BHpUUKxgXP0G%3F87KR6xqpxQQQJxo0nxlPnxv8uOc5xQQQ0QlaaGJQPJqpfVtB%3F*KUp7BHSHqqy7XH6gXP0G%7CRup6lQQ%7C/of=50,590,442"
How would I set it up?
And here it is with the width added - <img src="BIGLONGURL" width="410">
One thing to note is that when you use this method to make the image fit, it can make it look a little choppy. But it's an OK workaround if you're not able to upload it in the exact size you want.
In the really long URL, note the three numbers at the very end - "of=50,590,442"
The second two numbers are the image width and height (first one is probably the JPG quality setting). If you change the "590" to "410", you get this image:
src="http://render2.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6%3DzqH%3AxxqUD7qRUrKxzX7BHpUUKxgXP0G%3F87KR6xqpxQQQJxo0nxlPnxv8uOc5xQQQ0QlaaGJQPJqpfVtB%3F*KUp7BHSHqqy7XH6gXP0G%7CRup6lQQ%7C/of=50,410,442"
This method is probably better, because the resizing is done by Snapfish's servers, rather than the browser.