How to convert PDF files with password.
Permission Password is to restrict printing and editing of the PDF file, you can convert it without offering the password.
Owner Password is to restrict opening of the PDF file, you need to enter the password first. Click the Lock icon in front of the PDF file or click the File menu>Unlock, you will get a window to enter password.
Tip: Files with Owner Password protection will be skipped during conversion unless the password has been entered.