Resize photo before sending it by email? On iOS, when I select one or more photos from the camera storage and choose to send them by email, the OS will ask me whether to send the images in full size or make them smaller so that the email won't be so large.

On Android (stock 4.2.2 on Nexus 4) I haven't found a comparable function. When I send an email of my baby to my mom, she receives a full 8-megapixel image that's too large to view on her monitor...

How can I have Android reduce the chosen photos before emailing them?
I don't want to have to launch an editor app  and scale each image individually.

I only found one 2-year-old post about this that doesn't mention any solution. Surely, there's a way to do this on Android, similar to how it's done on iOS?
There is a free (as in freedom) application Send Reduced, available at the F-Droid repository of free software.

Install F-Droid, install Send Reduced, select your photos, press Share button, select Send Reduced and then select the sharing method. Your photos will be sent reduced in resolution and file size.