generate image (e.g. jpg) of a web page?

Question

I want to create an image what a web page looks like, e.g. create a small thumbnail of the html + images. it does not have to be perfect (e.g. flash /javascript rendering).

Answer 1

To take a screenshot in the terminal with ImageMagick, type the following line into a terminal and then click-and-drag the mouse over a section of the screen:

import MyScreenshot.png

To capture the entire screen and after some delay and resize it, use the following command:

import -window root -resize 400×300 -delay 200 screenshot.png 

You may use a mixture of xwininfo and import to retrieve the window id of the browser and make a screenshot of that window. A bash script to automate this process would be something like this:

#!/bin/bash
window_id=`xwininfo -tree -root | grep Mozilla | awk '{print $1}'`
import -window $window_id -resize 100x100 tumb.png

This script will create a 100x100 screenshot of Firefox on the current directory under the name tumb.png

Several sources show how to run a bash script from inside a Java application, google can help you on that. If you are in a hurry, check this and this.