Anecdotally from previous HN discussions, I believe a lot of the code is now not developed by ChatGPT anymore.

Update: As evident by the author's comment below, it's definitely not made by ChatGPT anymore (in any major way)

The creator is in the comments, it wasn’t entirely developed with ChatGPT. The first spike in 24h was. The rest of the past year of development was human.

Looking at a few files, there's definitely some generated comments in there. Do you have any method to quantify how much of it is (likely) generated?

On mac, the preview app.

On Windows, okular. But honestly, pirating Acrobat is the best way if you have a tough economy.