CloudSEK, a cybersecurity company that specializes in using artificial intelligence to predict and mitigate digital threats, recently wrote of a new threat posed by some online PDF converters. CloudSEK’s investigation reveals a growing threat from fake online PDF converters that mimic legitimate services.
These fraudulent websites trick users into uploading files for conversion, only to execute malicious PowerShell commands that install malware. The malware steals sensitive data such as browser credentials and cryptocurrency wallet information. This highlights the risks of relying on unverified online tools for file conversion.
Here’s how it works: When users start the PDF conversion process on a malicious website, they encounter clever tricks designed to manipulate their actions. This could be fake loading animations or a CAPTCHA request. These imitate legitimate security steps, which make the sites seem trustworthy.
However, following the deceptive CAPTCHA interaction, the website prompts users to execute a PowerShell command that infects the user’s computer with malware.

Offline PDF tools, such as Win2PDF, offer a significant security advantage over online converters by processing documents locally. This ensures sensitive files remain on your computer, mitigating the risks of data theft and malware.
Win2PDF operates exclusively on your local system, guaranteeing that your files and data never leave your computer or network.
To ensure the security of your personal and professional data amidst ongoing cyber threats targeting online platforms, selecting offline PDF tools such as Win2PDF is a safer approach. Offline solutions enable efficient file conversion while preserving data protection.
Ultimately, choosing software to process your company’s sensitive documents requires trust. You can trust Win2PDF because:
- We’ve been in business for over 25 years.
- We have an A+ rating with the Better Business Bureau.
- We don’t rely on cloud services to process your documents.
Trust your documents to a secure solution. Download Win2PDF and see why we’ve been trusted for over 25 years. (Also, make sure that you only download only official setup programs from the Win2PDF website.)




