Fillable Forms
Create a New Form
Within Acrobat, click on the Tools tab and select Prepare Form
Select a file or scan a document. Acrobat analyzes your document and adds form fields automatically
Add new form fields from the top toolbar, and adjust the layout using tools in the right pane
Save your fillable PDF form and share it with others, or click Distribute to collect responses automatically
Convert Existing Form
Import a File
Open Acrobat and choose the 'Tools' tab
Select 'Prepare Form' and click 'Open' to browse to the file you'd like to convert - this can be a MS (Word, Excel, etc.) document or an existing, non-fillable PDF form, including a scanned document
Click 'Start'
Acrobat will detect and create interactive form fields. If a field isn't created automatically, you can add one manually
Edit Text Fields
Right-click a text field and choose 'Properties'
Click 'Options' in the top of the Properties window and deselect all of the options
Select the option you desire
Edit Check Box Properties
The default Checkbox style is a black square. To change the style to a Check Mark (or other symbol), right-click on the Check Box and choose Properties
Click 'Options' in the 'Properties' window and change the Checkbox style to your preference
Create Custom Fields
If Acrobat doesn't automatically detect a field, you can create a field manually (see 'New Form' above).
Resources
Acrobat.Adobe.com - Create a new fillable form
Acrobat.Adobe.com - Convert an existing form to fillable PDF