Smallpdf.com is one of my favorite tools for working with PDFs. Smallpdf allows you to do the following:
Note that the free version limits the amount of files you can processes each day.
When making buttons in Storyline, I often make the hover standard 10% lighter than the normal state color. I make the down or visited state 10% darker than the normal state color. To help find the right heximal decimal codes for the lighter and darker versions of the color, I use a tool from CSS Font Stack.
For anyone interested, I have a personal blog titled My Journey to Know the Savior where I share reflections about Jesus Christ.