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Set or remove PDF password

Set an open password on a sensitive PDF, or unlock one with a password you know. Free, with no install or sign-up (up to 100MB).

🔒 freesign.kr

① PDF 파일

② 비밀번호 설정

③ 잠금 완료

📕

기밀자료.pdf누구나 열 수 있는 상태

중요 문서에 비밀번호를 걸고 싶어요

🔒 비밀번호 걸기 ✓

🔓 비밀번호 풀기

비밀번호: ••••••••

잠금 적용

비밀번호 입력 → 잠금 클릭

🔒

기밀자료_locked.pdf비밀번호 잠금 완료

⬇ 잠긴 PDF 다운로드

수신자만 비밀번호로 열기 가능

🔒 Set password

🔓 Remove password

Password to set

Confirm password

.pdf · Max 100MB

Uploaded files and passwords are used only for processing and are not stored on the server.

About this tool

Set password — Set an open password on sensitive PDFs like contracts and IDs (AES-256).
Remove password — Unlock with a password you know to create a password-free PDF.
Free, no install or sign-up. Files and passwords are not stored.

What is PDF Password?

A feature that locks a PDF with an open password to protect it, or removes a password you already know. Use it to exchange confidential documents safely.

How it works

1 Upload the PDF.
2 Enter the password to set (or the current password to remove).
3 Download the processed PDF.

Frequently Asked Questions

Can it unlock a PDF if I forget the password? ⌄

You must know the current password to remove it. If you do not know it, it cannot be unlocked.

Is the password I enter transmitted? ⌄

It is used only for processing and is not stored.