When I save PDF with password show error The document not be saved . Bad parameter

Hi there

Hope you are doing well and sorry for the trouble. As described you are unable to save the pdf with password and getting the bad parameter error.

Is this a behavior with a particular PDF file or with all the PDFs? Please try with a different PDF file and check.

Is this PDF file has a signature? once a docuemnt is signed you cannot make any changes even adding a password. The password must be added before the digital signature.

You may also look at the similar discussion https://community.adobe.com/t5/adobe-acrobat-online/bad-parameters-when-saving-a-document-as-password-protected/m-p/11489263/thread-id/34555#M34988 and see if that helps.

Regards

Amal