I already asked [here](https://graphicdesign.stackexchange.com/questions/37988/how-to-recognize-font-types-in-png) a question about font types, which are used in PSD [layout](http://xoo.me/template/details/2609-simplistic-wordpress-blog-theme), but I have another problem: How to measure all distances between objects if in .psd these objects have .png format? I need to do this layout in HTML, So when I start to work, I encountered this kind of problem. Any help is appreciated, Thanks!