Doug Sahlin Doug Sahlin (Venice, Florida), is a best selling author, photographer, and Acrobat instructor. He teaches businesses, government, and medical organizations how to streamline their workflow and save time and money by converting electronic and pape documents into enhanced, interactive PDFs. His books include earlier editions of How to Do Everything with Adobe Acrobat (for versions 5.0, 6.0, 7.0, 8.0, and 9.0), Digital Photography Quicksteps, 2nd Edition, Digital Portrait Photography for Dummies, and Digital Photography Workbook for Dummies. Read More Read Less