Can I include required fields in a fillable PDF form? Last updated Save as PDF No. Procore's Forms tool does not support the enforcement of required fields in a fillable PDF. See Also What is a fillable PDF? How do I create a fillable PDF? What file types does the Forms tool support? If you would like to learn more about Procore’s forms software and how it can help your business, please visit our construction quality and safety tool product page here.