I once took a job for $25 to replace some text on a set of PDFs programmatically assuming it would probably take an hour max, only to end up spending 8 hours be

I once took a job for $25 to replace some text on a set of PDFs programmatically assuming it would probably take an hour max, only to end up spending 8 hours before I found a decent enough solution. I have never touched PDF manipulation tasks after that.