; \"output as PDF\"2. Click \"Advanced Settings\" in the lower left corner of the pop-up \"Output as PDF\" dialog box.3. In the po" />
1, click "file"->; "output as PDF"
2. Click "Advanced Settings" in the lower left corner of the pop-up "Output as PDF" dialog box.
3. In the pop-up "Advanced Settings", find "Permission Settings", put a check in front of it (to make the following permission settings take effect), click "Allow adding comments" again, and finally click "OK".