추가 password protection to your PDF documents with AES-256 encryption, or remove an existing password you already know. Separate user and owner passwords let you control who can open the file versus who can print, copy, or edit it. Everything happens on your device — your files never leave your browser.
무료 크레딧 · 신용카드 불필요
기능
사용 방법
Select the PDF you want to protect or unlock, or drag & drop it into the interface. 회원님의 file stays on your device and is never uploaded anywhere.
선택 to 추가 a 새로운 비밀번호 or 제거 an existing one. When protecting, set a strong 비밀번호 and decide which restrictions (printing, copying, editing) to 적용.
회원님의 PDF is encrypted with AES-256 or its existing password is removed. 다운로드 your secured or unlocked file the moment it's ready.
사용 사례
FAQ