Old vs New plans .PDF overlay

Even though my BC probably thinks I'm crazy, I decided to overlay the electrical .PDFs to ensure the only changes that had been made were the ones we requested.

This was done using a tool called 'Bluebeam Revu'. It allows you to overlay two .PDFs colouring the old one in red and the new one in green. Wherever it matches the colour turns to black so you know there is no change in that area. Here's an example.

This comes in very handy when doing post contract variations and when signing off the final construction drawings.

This tool can be seen here: http://bluebeam.com/us/products/revu/  unfortunately it's not free :(