PDF 암호 설정
비밀번호를 설정하여 PDF 문서를 안전하게 암호화합니다.
About Protect PDF
How PDF Encryption Works
You pick a password. The tool encrypts the entire PDF so that anyone who tries to open it gets a password prompt first. No password, no access. The encrypted file downloads to your device, ready to share.
OxygenPDF supports both a user password (required to open the file) and an owner password (controls editing and printing permissions). If you only set one, both default to the same value.
When You Need to Protect a PDF
Any document that would cause problems in the wrong hands is a candidate for password protection.
Confidential Reports
Financial statements, audit findings, internal memos. Add a password before emailing so only the intended recipient can read them.
Legal Documents
Contracts, settlement agreements, court filings. Encryption adds a layer of access control when sharing sensitive legal files.
Tax & Financial Records
Tax returns, bank statements, payroll data. Password protection is the minimum before sending these to an accountant or advisor.
HR & Personnel Files
Employee records, performance reviews, offer letters. Encrypt before storing in shared drives or sending over email.
How It Compares
Most PDF tools offer encryption, but the details matter: where the encryption happens, what algorithm is used, and whether your file gets uploaded.
| 기능 | OxygenPDF | Adobe Acrobat | iLovePDF |
|---|---|---|---|
| User password (open) | |||
| Owner password (permissions) | |||
| Password strength indicator | |||
| Encryption happens locally | Desktop only | ||
| No file upload required | Desktop only | ||
| Free to use | Limited |
Encryption Happens on Your Device
The whole point of encrypting a PDF is to keep its contents away from unauthorized eyes. Uploading it to a server for encryption defeats the purpose — you’re handing the unencrypted file to a third party before they lock it for you.
OxygenPDF encrypts the PDF in your browser. The file doesn’t leave your machine. Your password never leaves your machine. The encrypted result is produced locally and downloads straight to your device.
PDF 암호 설정: 자주 묻는 질문
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