What resolution size do I want?
What resolution size you need can vary depending on the project. There are various factors that can determine the ideal photo resolution.
To start with, consider the purpose of your image, how large it needs to be and where it will be used. Here are a few examples to get you thinking:
What are the final expectations for the images? Are they going to be part of a fine art exhibition, or demonstrating the best and brightest nature photography?
If so, then using a high picture resolution of 300 DPI may be the best way to print and display them. This value can be tweaked depending on the level of detail required, how far away the viewer will be and how large the image needs to be.
For certain projects, such as large prints, you may be able to use 150 DPI. When viewed from a distance, the difference isn’t overly noticeable to the human eye.
On the flip side, if the final purpose of the image is as a tiny thumbnail, you can usually get away with a lower resolution size.
Online vs offline
Generally, images used online don’t need to be as substantial in resolution as offline or printed images.
So, if you are putting together a personal blog or updating a client’s site, your eye-catching imagery can often be as little as 72 PPI when uploading them to the web.
Ease of storage
Storage is another important consideration when working with large numbers of images. How much storage do you have? Is it better to use smaller images that are easier to store on a server or computer – or on the cloud?
After all, detail comes at a cost. The more pixels an image has, the higher the resolution, meaning a larger file size.
But don’t worry. After you’ve perfected your picture to the right specifications, there are ways to help reduce file size by compressing the image, without sacrificing on quality.
Learn more about lossy and lossless compression methods and how they compare to one another.