How Do I Saved an Unlocked Copy Of a Locked PDF?

After unlocking a locked PDF document in Preview and marking it up, how do I save it as an unlocked document for sharing with others. When is select “Save As” it still saves the document locked. File – “Export as PDF” is shaded & can’t be selected. File – “Export” & selecting “PDF” on the next screen still saves it locked. MacOS Monterey v 12.0.1
I need to save an unlocked, edited version of the locked PDF to forward to others.
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Leanne