Choosing the right file is the first step in improving image quality. Use a high-resolution file to make sure your profile picture looks sharp, even when enlarged. LSI keywords like "high resolution file" and "professional profile photo" help optimize your presence.
Image editing software allows you to make fine adjustments to optimize image quality. Adjust the brightness, contrast and sharpness to make the image more pleasing.
Instagram displays your profile picture in different sizes depending on where it appears. Test your image in different sizes to make sure it looks good in all situations.