Hi, Is it possible to zoom into a specific part of the page? I am thinking of the following scenario. Suppose I have the following document \setuppapersize[S6][S6] \starttext \placefigure[right,none]{\externalfigure[dummy][width=0.3\textwidth]} \input knuth \page \input tufte \stoptext I want that when I click on the image, the pdf is zoomed in so that the image occupies the full screen[1], and when I click on the zoomed in image, it zooms out and I get the previous page view. How do I achieve this? I am guessing that some javascript magic might be needed, but I do not understand the interaction code at all. This feature will be pretty handy for presentations. Thanks Aditya [1]: I do not know if the pdf reader knows the screen size. Assuming that the screen aspect ratio is the same as the page aspect ratio might be a good approximation (at least for presentations).