Thank you.
How did you manage to do that?
I have Adobe Acrobat Standard. $40 with my new laptop a couple of years ago. It gives the option to save the PDF as an "Extended PDF" which opens up the saving of form fields permission but restricts other permissions that are normally available for Reader users.
WotC left everything open on their PDFs. I was even able to edit the weapon fields in the middle of the sheet on my personal copy to fix it so the text Auto Fit instead of running out of space.