How to take screenshot of a website with Rails 3.1? — without using a service

Question

Almost every answer I\'ve found references using some existing service. Is there a way to do this using Rails 3.1 programmatically? This was dead easy to do wit

Answer 1

You could use wkhtmltoimage to load up the webpage and save it as an image, then imagemagick, (or one of the ruby wrappers for it) to crop it.

wkhtmltoimage www.google.com output.jpg
convert -crop 100x100+0+100 output.jpg cropped.jpg

There isn't a prebuilt wkhtmltoimage binary for OSX though, so perhaps you may want to use wkhtmltopdf instead and then imagemagick to convert to an image.

wkthmltopdf www.google.com output.pdf
convert -crop 100x100+0+100 output.pdf cropped.jpg