> For the complete documentation index, see [llms.txt](https://usermanual.doctranslate.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://usermanual.doctranslate.io/pdf-tools/protect-pdf.md).

# Protect PDF

**Protect PDF** encrypts a PDF file with a password so only people who know the password can open it — right in your browser, no account required.

### **How to Use**

The process is simple and consists of three basic steps:

#### **Step 1: Upload Your File**

* Go to **PDF Tools** and select **"Protect PDF."**
* Drag and drop a PDF file into the upload area, or click to browse your computer.

<figure><img src="/files/145732c2a33d545ff85078a8c4e339048564919e" alt=""><figcaption></figcaption></figure>

#### **Step 2: Set a Password**

* Type the password you want to use to lock the file into the **Password** field.

<figure><img src="/files/083d6f24fa64a25b85ce0bfd85bd466f3ee166d2" alt=""><figcaption></figcaption></figure>

#### **Step 3: Protect and Download**

* Click **"Protect PDF."**
* Once processing is complete, click **"Download Document"** to save the password-protected file to your device.

<figure><img src="/files/87790e9c15bc79223209c4c329e50b6bf9f4065b" alt=""><figcaption></figcaption></figure>

***

*📌 **Note:** Protect PDF is completely free and does not require an account. Keep your password safe — anyone who wants to open the file will need it.*