Alternatively - if you have Microsoft office, to resize a picture before posting it, right click on your picture and look for 'OPEN WITH', then select the Microsoft Office 2xxx with the red square icon, it should open an application that when you select the picture drop down menu, will allow you to 'resize' the picture down to about 1200 x 1200, when you close the application and save the picture, just check its below the 300kb in the folder the picture is in, just make sure the picture or folder is on the desktop (makes it so much easier to find when you post and click attachments, that when you browse you find the picture or folder when you look for the desktop, as in the picture above).