License Activation Guide¶

This guide explains how to activate and manage your pyobfus Professional Edition license.

Prerequisites¶

• Python 3.8 or higher installed
• pyobfus package installed: pip install pyobfus
• Valid license key (received via email after purchase)

Important: Your license key email may be in your Spam/Junk folder. Please check there if you don't see it in your inbox within a few minutes of purchase.

Try Before You Buy¶

Not sure if Pro features are right for you? Try them free for 5 days:

# Start a free trial (no credit card required)
pyobfus-trial start --email your@email.com

# Test Pro features during trial
pyobfus input.py -o output.py --string-encryption --anti-debug

# Check trial status
pyobfus-trial status

The trial includes all Pro features. After 5 days, purchase a license to continue using them.

Quick Activation¶

# 1. Install/upgrade pyobfus
pip install --upgrade pyobfus

# 2. Register your license
pyobfus-license register PYOB-XXXX-XXXX-XXXX-XXXX

# 3. Verify activation
pyobfus-license status

Detailed Steps¶

Step 1: Install pyobfus¶

If you haven't already installed pyobfus:

pip install pyobfus

Or upgrade to the latest version:

pip install --upgrade pyobfus

Step 2: Register License Key¶

Use the pyobfus-license command to register your license:

pyobfus-license register PYOB-XXXX-XXXX-XXXX-XXXX

Replace PYOB-XXXX-XXXX-XXXX-XXXX with your actual license key.

Expected output:

[INFO] Registering license: PYOB-XXXX-XXXX-XXXX-XXXX
[SUCCESS] License registered successfully
[INFO] License cached locally for offline use

Step 3: Verify Activation¶

Check your license status:

pyobfus-license status

Expected output:

License Status:
  License Key: PYOB-XXXX-XXXX-XXXX-XXXX
  Status: Active
  Email: your-email@example.com
  Device: 1/3 devices used
  Features:
    - AES-256 String Encryption: Enabled
    - Anti-Debugging: Enabled
  Cache: Valid (expires in 2 days, 23 hours)

Step 4: Start Using Pro Features¶

Once activated, use Pro features with command-line flags:

# AES-256 string encryption
pyobfus input.py -o output.py --string-encryption

# Anti-debugging checks
pyobfus input.py -o output.py --anti-debug

# Both features combined
pyobfus input.py -o output.py --string-encryption --anti-debug --preserve-param-names

Managing Your License¶

Check Status¶

View detailed license information:

pyobfus-license status

Add --verify flag to force online verification:

pyobfus-license status --verify

Remove License¶

To deactivate the license on current device:

pyobfus-license remove

Note: This only removes the local cache. Your license remains valid and can be reactivated on this or another device.

Transfer to Another Device¶

Each license works on up to 3 devices. To transfer:

1. On old device (optional): bash pyobfus-license remove

2. On new device: bash pip install pyobfus pyobfus-license register PYOB-XXXX-XXXX-XXXX-XXXX

If you've reached the 3-device limit, contact support to reset device bindings.

Offline Usage¶

Your license is cached locally for 3 days after activation. During this period, you can use Pro features offline.

To refresh cache (requires internet):

pyobfus-license status --verify

Cache location: - Linux/Mac: ~/.pyobfus/license.json - Windows: %USERPROFILE%\.pyobfus\license.json

Troubleshooting¶

"License not found" Error¶

Problem: License key not recognized

Solutions: 1. Check your email for the correct license key 2. Ensure no typos (use copy-paste) 3. Verify internet connection 4. Contact support if key is definitely correct

"Device limit reached" Error¶

Problem: License already used on 3 devices

Solutions: 1. Remove license from unused devices using pyobfus-license remove 2. Contact support to reset device bindings: zhurong0525@gmail.com 3. Include your license key in the email

"License verification failed" Error¶

Problem: Cannot connect to license server

Solutions: 1. Check internet connection 2. Try again in a few minutes (server may be temporarily unavailable) 3. Use offline mode (if cache is still valid) 4. Contact support if problem persists

Cache Issues¶

Problem: License shows as expired despite being valid

Solutions: 1. Force online verification: bash pyobfus-license status --verify

1. Remove and re-register: bash pyobfus-license remove pyobfus-license register PYOB-XXXX-XXXX-XXXX-XXXX

Support¶

If you encounter any issues:

Email: zhurong0525@gmail.com Subject: "License Activation Issue" Include: - Your license key - Error message (if any) - Python version: python --version - pyobfus version: pip show pyobfus - Operating system

We typically respond within 24 hours.

FAQ¶

How many devices can I use?¶

Each license works on up to 3 devices simultaneously.

Do I need internet to use Pro features?¶

• Initial activation: Yes
• Regular use: No (cache valid for 3 days)
• Verification refresh: Yes (every 3 days or on-demand)

What happens if my cache expires?¶

Pro features will stop working until you verify online again using pyobfus-license status --verify.

Can I share my license?¶

No. Each license is for individual use. Sharing violates the license agreement and may result in license revocation.

Is the license lifetime?¶

Yes. Once purchased, your license never expires. You get all updates to Pro features for free.

What if I lose my license key?¶

Contact support at zhurong0525@gmail.com with: - Email address used for purchase - Approximate purchase date - Payment confirmation (if available)

We'll resend your license key to the registered email.

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Last Updated: 2025-12-27