Somewhat off-topic: Although in this particular case I use Preview on a Mac, this task is in the general category of tasks where every once in a while I need an

Somewhat off-topic: Although in this particular case I use Preview on a Mac, this task is in the general category of tasks where every once in a while I need an app to do a slightly unusual thing. I might, say, need something like this once every two weeks, but never the exact same task more than a couple times a year. Unfortunately, the naive method for one-off finding a rarely used function like this is Googling, but the Google results are SEO'ed to death. The top results are invariably more broken and ad-invested than the best thing out there, but the latter is hard to find. Any suggestions? By far the most useful tool I've found for this is https://alternativeto.net/ https://alternativeto.net/, but it often doesn't have what I need.