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I am trying to reduce image size to less than 20kb (Dimension 940*884 )for a eCommerce website. Using features of photoshop cs6 I am able to reduce image size to around 65kb. Below which the image gets distorted. Wondering how to solve this, I downloaded a similar image from web of less 20kb. Saved it again via photoshop(using default setting) to only find it saved as 80kb. Am I missing any photoshop settings which is always increasing the size? Any help is greatly appreciated. Note: All images are jpeg.
Change of question: I am unable to find my previous example. Let me give another example. I have downloaded a pic from the following link: flipkart.com/puma-pulse-5000-flex-tech-wicket-keeping-pads/p/… Now, The dimension of this pic is 252*400 and size is 32 kb. I open the same image in photoshop. Go to save for web option. Choose 100% quality, click save. The image gets saved as 48 kb. Why this increase in kbs? What should be done to avoid the increase in size and keep the kb size as good as original 32 kb!