• What do I want to do?

I want to read and edit PDF files.

• What technology will help me accomplish my goals?

I can read PDF files in any browser, but editing is limited. Xodo allows more extensive editing.

• How easy is it to use?

Xodo is relatively obvious to use.

• How do I learn to use it?

I began using it and checked the various options on the toolbar.

• How can I obtain it?

It is a free download

• What does it cost?

It is free.