For maximum privacy and control, you need to self-host any available open-source PDF editors on your own server.

Why pay for Adobe Acrobat or risk your data with online editors when excellent open-source PDF tools offer powerful, private alternatives? These PDF editors give you complete control over your ...

You can open the Local Group Policy Editor and double-click on the Always Open PDF files externally setting. Then, choose the Enabled option and click the OK button to save the change.

Caly is a fast, open-source PDF reader for Windows. It features tabbed viewing, smooth navigation, text search, bookmarks, and low memory usage for efficient performance.