You can upload the Product Images that you want to create/edit in DealPOS from your Instagram. To upload the product image from Instagram to DealPOS, you can follow the steps below:
Step 1. Go to Product, then Add Product
You can Add New Product and upload the images, click Upload Image.

Step 2. Click Instagram, then Click Connect to Instagram

Step 3. Login to Instagram Account

Step 4. Click Allow
Allow connecting Dealpos with your Instagram.

Step 5. Choose Product Image, then Click Upload
Choose an image product from your Instagram, click Upload.

Step 6. Click Submit

Step 7. Product was Created
The product will be created with an Image uploaded from Instagram.

Upload Product Image from Instagram Tutorial Video
You might like to read these related articles below :
You can resize the image resolution for your product's Image by following this article : Resizing Option For Uploaded Images
You can show the Thumbnail Images from the product in the sell menu, to show the thumbnail image you can read this article : Show Thumbnail Product Images in Sell Menu
To edit bulk product : How to Edit Bulk Product