There is a Mobile Version of the Web-If, however the Browse function is limited to file viewing only, file manipulation functions such as shrink are not present. There are some example screen dumps on the WiKi
HERE.
It is possible to carry out functions such as shrink on a mobile device by choosing the 'Desktop Version' option at the bottom of the
'Mobile' home page, where a full set of options are available, this works for me on both a 10 inch Android tablet and a cheap 3 Inch Android smart phone