Editable Fields in Downloaded PDF File

I have uploaded my pdf template in E2Pdf and placed input fields with the respective map fields. But, when I use the shortcode for downloading the .pdf file after submitting the Caldera form, the downloaded pdf file has editable fields (i.e. the fields that I placed in the E2Pdf Template with the map fields are editable and not stable). Any suggestions on how can I fix this issue? Appreciate the help:)