I have created several forms for work, in Word 365, with check boxes. When I save them as PDF and go into my Adobe Pro - 2017, and prepare the form to make it fillable - the default for the check box is a block

I cannot find where I can make Adobe default to a proper check box - with an actual checkmark. Right now, I prepare the form in Adobe, delete the information in the box, click on the check mark box, resize the box, copy it, and paste for the next box, changing the name of the box. One form I have has over 30 boxes, and everytime I have to update the form I have to go through the process again. There must be a way to make this automatic, but for the life of me, I do not see how to do it.
Any help would be greatly appreciated.
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