حماية PDF
تشفير مستند PDF الخاص بك بكلمة مرور.
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.
| الميزة | 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.
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متابعة العمل على ملفات PDF الخاصة بك
ضغط PDF
تقليل حجم الملف مع تحسين الجودة وضبطها.
توقيع PDF
إضافة توقيعات إلكترونية إلى مستندات PDF الخاصة بك.
إلغاء حماية PDF
إزالة الحماية بكلمة مرور من مستند PDF الخاص بك.
تنظيف PDF
إزالة البيانات الوصفية والتعليقات والبرمجيات النصية والبيانات المخفية.
أذونات PDF
تعيين قيود على المستند مثل منع الطباعة أو منع النسخ.
تنقيح PDF وحجب المحتوى
إزالة المحتوى الحساس نهائيًا وبشكل لا رجعة فيه من مستند PDF.