네. 비밀번호는 파일 열기를 보호합니다. 권한은 열기 후 작업(인쇄, 복사, 주석 등)을 제어합니다.
이러한 제한 사항이 모든 PDF 리더에서 작동하나요?
Standard PDF permission flags work in Adobe Acrobat and most compliant readers. However, some third-party readers may ignore the restrictions, so permissions are best treated as a deterrent rather than an absolute guarantee — combine them with password protection for stronger control.
나중에 권한을 변경하거나 제거할 수 있나요?
Yes. As long as you know the owner password you set, you can re-open the file with this tool and apply new permission settings, or remove restrictions entirely by clearing all toggles and re-encrypting without limits.
PDF를 보려면 수신자에게 비밀번호가 필요한가요?
No. By default, this tool leaves the user password empty so anyone can open and read the document. Only the owner password is set, which controls actions like printing and copying once the file is opened — viewers never see a password prompt.