It's that time of the year when The Nobel Prize winners in the fields of medicine, physics, chemistry, literature, world peace and economics are being announced.
If you don't have installed program for editing PDF documents on your computer, then you can use web application PDFescape which allows you to edit your documents in your browser.
If you know how many years or months you got left until the retirement or any other event or project in your life, Excel can return you the exact date and the number of days left to reach it.