Many of these sites survive on aggressive advertising. Clicking the wrong button can lead to intrusive pop-ups, malware, or phishing attempts. Always use an ad-blocker and updated antivirus software.
Even if you find a downloader that appears to work, you are playing a dangerous game. Here is what you are really risking: scribd free downloaders
By following these best practices, you can access the information you need while supporting authors and creators. Many of these sites survive on aggressive advertising