If your data connection is slow, you may need to compress the photos you want to share. You may also need to reduce the size of the photos if you want to back up your camera photos online to cloud storage.
How to Batch Resize Images in Photoshop
Whatever the reason, you can use an Android app to compress the images on your device. Whether it is 50 or 100 photos, you can resize, compress and share all the images in your gallery with one click using the Lit Photo app. You can even automatically delete the original images after compressing them to a smaller size or resolution, which can save a lot of storage space on your mobile phone.
Step 1: Launch the Lit Photo app.
Step 2: Tap on 'Change Photo Size'.