A free program for Android, by SJ Tech..

Do you love taking photos and posting them online, but the problem is the required file size is small? Then, you must try this Fast Image Resizer – Image compressor. 

This app helps you to resize or compress your photo. You can set the quality of the photo to meet the requirements of your task. One of the best features of the app is you can adjust the screen resolution of the image.

How to use this Fast Image Resizer – Image compressor app

1. First you need to select what photo you want to resize
2. Adjust the photo using the settings like quality and resolution
3. Save the photo 
4. You can find the saved photos in the compressed button in the app