Welcome on this site I'd like to offer you a possibility to change the font for Counter-Strike: Global Offensive. However, I have to add that it isn't possible to change font size or text positions.
Install: Just unzip the contents of the ZIP directly into your Program Files directory. (Usually "C:\Program Files\ or C:\Program Files (x86)")
For uninstall use: steam://validate/730
(experienced users may just have a look into the file "fontmapping.cfg")
Each download not coming from this site could have been modified using a virus or other unwanted modifications wich could result in a VAC ban.
My very own scripts never lead into a VAC ban, so be careful where you download from!