Easiest way to resize and email pictures? I have some clients that need to take high quality photos with their cell phones, send the photos via email, but keep the original size for later. (don't ask :P )

I'm looking for the easiest way to resize a bunch of pictures and email them, without modifying the original photo. 

I guess ideally there would be a setting in the mail app that could downsize all the photos, but I don't see that in any Android mail apps. Another ideal thing would be an Android app like Instasize that could resize multiple photos and then email them. I can't find one. 

Anyway, what's the most efficient way to resize 10-30 photos and email them? 

Thanks!
Android doesn't have such a feature built-in. But there are several apps available a.o. at Google Play which can help you out (for a list, see Other photo editors on my site). One of those is JustResizeIt!, which also offers batch-resizing:


  JustResizeIt! mobile free lets you resize and share your pictures with all your friends and family with only a few taps.
  
  It can send entire albums via email to many recipients, add resized photos to your online gallery, upload original images to a FTP/FTPS server or create new albums.


Its feature list explicitly names:


  
  send many pictures to many recipients with only a few taps
  create a reusable widget for each purpose
  resize pictures to any desired resolution
  resize as much pictures as you want
  


So this should perfectly match your needs.