PDF Form with Save Button

I am a new user to LiveCycel.. I am looking at creating a pdf form which the user will use to fill in some fields. Once the user is done, he should be able to click a button on the form, which will read as "save". Upon clicking the script behind this button should fetch the field value from 3 fields in the form, concatenate them to create a valid field name and store the pdf form with data entered as a pdf file in a pre-defined path that is defined within the script of the "Save"Button.

Does anyone have a template with such feature that I can look to understand.

Any help in this regard will be highly appreciated.

Thanks

VP