I had ChatGPT build me a free PDF editor because I didn't trust it to change my files - it worked!

The smartest way to use AI may not be letting it touch your files, but asking it to write software that handles them safely - ...
AppleInsider

How to use PDF Debugger to inspect a PDF file's code

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 ...