Acrobat automatically assigning all of my pdfs a password

I just started my Creative Cloud account, though I have had the Creative Cloud app downloaded on my laptop for a couple years now. I have never run into this problem until now. Today, I created pdfs like I normally do (these ones were created using the Publish feature in Vectorworks). I downloaded Adobe Photoshop and tried to drag one of the pdfs into Photoshop, but was prompted to input a password. I did not create a password for this pdf. I did not previously have Adobe Acrobat downloaded, so I don't know why it has a password. I also cannot find the setting to turn off automatically creating passwords for my pdfs. This affects all the pdfs I have created today but none of the pdfs I had downloaded previously. What do I do?