edited for 2.5
Articles
HTML
The HTML field allows you to place a block of free form HTML anywhere in your form. This is useful for adding images or additional content.
Hidden
The Hidden field can be used to store information that should be not visible to the user but can be processed and stored with the user submission.
Number
The Number field allows a user to enter a number. The field than automatically validates the form data to insure that a number was entered.
Paragraph Text
The Paragraph Text field allows a user to enter text in a textarea form field.
Single Line Text
The Single Line Text field allows users to submit a single line of text. This basic field can be used for anything where no more than a single line of input is required.
File Upload
The File Upload field allows users to upload a file with their form submission. You can limit which filetypes a user may upload.
Exporting Form Entries
Learn how to export all of your form entries (submissions) to enable further analysis or manipulation in external tools.
Trash
With Gravity Forms version 1.6, unwanted entries are no longer deleted immediately. Instead these entries are moved to the Trash.
This option shows a print preview for your entry, displaying all of the form field names as well as the values that have been entered.
The Email field allows you to present a field that captures email data.