How to create an Instagram swapable post?

Open this PSD file

1: When you open the psd you will notice few lines and blank file . Which is actually our canvas .

2: so now you have an open image which you wanted to cut for Instagram. After importing the image done drop that image on psd file or white canvas

3: After drag and drop check the composition and try to fit as per image nature or strong points of your composition

4: Now click the slice tool (which you can find in crop tool section)

5: Slice tool help you cut the image in two parts. PSD file already optimized to Instagram vertical composition. Just select the one part of the image with slice tool

6 : After that

File > exports >save for the web

7: here you can save the image as per your test to avoid banding in the image try to save in Medium quality option

RESULTS

https://video.wixstatic.com/video/a617d4_ef8163aac5d14b65a65287515b58dfa9/480p/mp4/file.mp4