For an opposing view, for productivity stuff, I really don't like the simple mac apps approach. I regularly open preview expecting it allow some simple changes, but end up disappointed and either do it via gimp or imagemagick. It's similar to Windows experience where people try to release simple apps like a tool for preview, tool for resizing, tool for optimizing compression, tool for merging images/pages, etc.
It's too much hassle when two slightly more advanced tools can cover all of those usecases.
And don't get me started on mac's screenshots which are saved in 12h time in the name, so your 1pm screenshot is before your 11am screenshot and there's no configuration option for it.
Funny that you mention resizing (Preview > Tools > Adjust size) and optimizing compression (Preview > Export > JPEG > compression slider), both tasks that Preview can do out of the box. For advanced edits I use Pixelmator Pro which has a UI that is actually usable compared to the decades-old cluster fuck that is the GIMP UI.
Sorry, I should've used a different word - you can't "expand" the image - i.e. make the size larger and keep the picture in a specific place, so that there's more space for annotation on a side. (or I'm missing the option?)
> Preview > Export > JPEG > compression slider
That's recompressing (losing the quality in the process) not optimizing compression. You can't update the compression settings on a png for example.
It's too much hassle when two slightly more advanced tools can cover all of those usecases.
And don't get me started on mac's screenshots which are saved in 12h time in the name, so your 1pm screenshot is before your 11am screenshot and there's no configuration option for it.