How do you handle sensitive PDF files in Edge without third-party cloud uploads?

Hi everyone,

When working with sensitive PDF documents (like financial or personal files), most online PDF editors require uploading files to third-party cloud servers. This raises obvious privacy and security concerns for many users.

The most reliable way to maintain data privacy today is using Client-Side Browser Processing (WebAssembly & JavaScript), where operations run entirely inside the local browser memory without transmitting any data over the internet.

Key advantages of pure client-side processing:

Total Privacy: Zero file transfers or external server logs.

Instant Speed: Processing relies on your local CPU, bypassing slow upload/download waiting times.

No Software Installation: Works directly inside browsers like Microsoft Edge.

For those looking for a practical example of this architecture, https://pdfdocflow.com  is a free tool offering 24 browser-based tools (merging, splitting, compressing, watermarking, and signing) operating 100% locally with zero server uploads.

How do you usually handle sensitive PDFs while browsing, and do you prefer client-side web tools over installing dedicated software?