![](/static/253f0d9b/assets/icons/icon-96x96.png)
![](https://lemmy.ml/pictrs/image/q98XK4sKtw.png)
Any photo editor will do. Just load it in and export as JPEG or smaller resolution.
On f-droid:
Pocket Paint is crashy for me, but it gets the job done.
Imagepipe has a bit clunky interface but just to load and export it works fine. Its primary advertised purpose is to remove metadata from photos, so not a bad thing to have on hand anyway.
Not much of a “meme”