حماية PDF

أغلق ملف PDF بكلمة مرور قوية لمنع الوصول غير المصرح. تشفير فعّال حقاً.

نصيحة: يمكنك أيضًا إسقاط ملفات PDF في أي مكان في هذه المنطقة.

الحد الأقصى لحجم الملف: 50 ميجابايت · العمليات المتبقية اليوم: 20

PDF Clinic's Protect PDF tool helps you encrypt PDFs with a password. Whether you need to you are emailing sensitive HR or financial records or you want to restrict printing or copying, you can complete the job in your browser on desktop, tablet, or phone. Files are transferred over encrypted connections, processed on our servers, and removed according to our retention policy so your documents are not kept longer than necessary.

What this tool does

The Protect PDF feature is built for everyday document work: encrypt PDFs with a password

Upload one or more files, adjust the options shown for your task, and download the result when processing finishes. Registered accounts may have higher file-size and daily operation limits for heavier workloads.

When to use it

Choose Protect PDF when you are emailing sensitive HR or financial records. It is also a practical choice when you want to restrict printing or copying.

Students, freelancers, HR teams, and finance departments use PDF Clinic to avoid desktop software licenses while keeping a consistent workflow across devices.

How to get the best results

Share passwords through a separate channel from the file link.

How it works

  1. Open the Protect PDF page and select or drag your file(s) into the upload area.
  2. Review any options (page range, quality, output format) shown for your task.
  3. Start processing and wait for the progress indicator to complete.
  4. Download your file and verify the output before sharing it externally.

Frequently asked questions

Yes. PDF Clinic is free to use. Anonymous and registered accounts may have different daily limits on file size and number of operations; sign in to see your limits on the upload screen.
No. Uploaded files are kept only as long as needed to complete your request and are deleted automatically within 24 hours under our retention policy.
No. PDF Clinic runs entirely in your web browser.
Supported inputs depend on the tool; most PDF tools accept standard PDF files. Converters also accept Office or image formats listed on the upload screen.

Related guides

Password-Protect Sensitive PDFs