For years, I have done the majority of my research online. Until a couple of years ago, I would identify the cases that helped me, email those cases to myself, print them out, and then highlight/take notes on the hard copy. A couple of years ago, I realized that it made no sense for me to keep all of my documents electronically, but keep my research in hard copy.
After coming to this realization, I switched to printing my cases to PDF and then commenting and highlighting the cases in Adobe Acrobat. If I have a big project, however, I can end up with several cases to print to PDF. This can be a time consuming task if it is done one case at a time.
Using Adobe Acroabt 8 Professional (no, I do not yet have 9), I can take advantage of the Batch Processing feature. I simple select Advanced > Document Processing > Save as PDF. I then identify the files that I want converted to PDF. Acrobat will open the files and convert them to PDf for me.
Last week I had about a dozen cases to convert to PDF. I simply started the batch processing and ran out to grab some lunch. When I returned, all of the work had been done and the files had all been saved as PDFs.