PDF 잠금 해제
무료·가입 불필요·파일은 절대 기기를 떠나지 않습니다
How to unlock a PDF in 3 steps
Have the password? Remove it permanently — so every future open is one step shorter.
Upload the locked PDF
Drop the encrypted file in the box above. It never leaves your device.
Enter the password
Type the password you already know — the one the document was protected with.
Download the clean copy
Click Unlock. The decrypted PDF downloads immediately, restrictions gone.
Why unlock PDFs with AmiPDF
Your password, your document, your device — nothing in between.
설계부터 프라이빗
처리는 전적으로 브라우저 안에서 이루어집니다. 업로드, 저장, 공유가 전혀 없습니다.
가입 불필요, 워터마크 없음
계정도, 이메일도, 제한도 없습니다. 출력물은 입력 그대로입니다.
Removes restrictions too
Print-disabled or copy-protected documents unlock along with the password — the file becomes fully yours again.
어떤 기기에서도 작동
Windows, Mac, Linux, Android, iOS에서 동일한 빠른 경험 — 설치 불필요.
When to unlock a PDF
Your own files with passwords you keep typing, inherited documents with print restrictions, purchased material you're licensed to use but can't annotate. With the rightful password, unlocking is legitimate housekeeping.
Decryption is local — the password and file both stay on your machine.
Unlock PDFs on any platform
AmiPDF는 브라우저에서 작동합니다 — 설치, 설정, 업데이트 모두 불필요.
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Frequently asked questions
Can AmiPDF crack a password I don't know?
No. This tool removes protection using the correct password — it is not a cracker. If you've lost the password, no ethical tool can help.
Does it remove copy and print restrictions?
Yes. If you can supply the password, both the open password and the permission restrictions come off together.
Is unlocking a PDF legal?
When you have the right to the document — it's your file, or you're an authorized recipient with the password — yes. Don't use it on material you're not licensed to access.
Why do I get an error with the right password?
Check for typos and keyboard layout first. If the file uses an unusual encryption flavor, try re-saving it from a desktop reader once, then unlock that copy.
Is my password stored anywhere?
No. It's used in memory to decrypt and then discarded — nothing is transmitted or saved.
Can I unlock many files at once?
One at a time for now — each takes just seconds since everything runs locally.
관련 PDF 도구
계속 진행하세요 — PDF 작업에 필요한 모든 것, 전부 무료이고 전부 로컬 실행.