Apple ended direct PostScript file support in macOS Sonoma, but you can still peek inside PDF files to see what they contain, by using PDF Debugger.. PDF - the web's ubiquitous document format was ...

It takes a file or files, and turns them into a “paper backup”—a black-and white PDF file full of QR codes that’s ready to print. That’s legitimately the whole deal—you run the code ...

Google is making file sharing simpler on Android with a new QR code feature in Quick Share, available now for users worldwide. Heres how it works.