AutoCad
Autocad has been my primary CAD drafting tool since 1983. Back then, you had to use a seperate computer to plot your files so there was a lot running back and forth from one computer to another with drawings on 5.25" disks. Even then, it was quite a big deal to be able to reduce the amount of time spent on repetitive detailing.
Auto cad has become far more powerful since then and it has become by far the most popular 2D drafting and detailing program. Architects, Civil, Mechanical, Electrical and Structural Engineers all consider it their drafting tool of choice.
One aspect of the program that has always been popular is that it can be customized to suit the needs and standards of just about any company that needs drafting.
If you are thinking of purchasing the software for your company, I can help advise you about how well it might suit the needs of the type of drafting that your are doing. For example, sometimes it necessary to purchase the full version of Auto Cad if you are not going to make use of all of its features. Many companies make do perfectly well with seats of Auto Cad lite or a compatible versiion of this software.
Here are some helpful articles about Converting Auto Cad to PDF
and moving Auto Cad drawings to SolidWorks