Frequently Asked Questions
Everything you need to know about WhatPDF and our secure processing.
Absolutely. WhatPDF uses client-side processing technology (WebAssembly). This means your files are processed directly in your web browser and never leave your computer. We don't have access to your documents.
Technically, no. However, since the processing happens in your browser, it depends on your computer's RAM. Most modern browsers can handle files up to 500MB without issues.
Unlike traditional online PDF tools that require expensive servers to process documents, WhatPDF uses your own computer's power to do the work. This massively reduces our costs, allowing us to keep the platform free for everyone.
No registration is required. You can use our available tools immediately without providing any personal information or email address.
Once the application is loaded in your browser, most tools will continue to work even if you disconnect from the internet, as all processing is local.