When working with print, one of the most important things to pay attention to is resolution. Taking the time to understand the basics of image quality will help you to create artwork that is professional and clear.
I’m going to be using Photoshop here to inspect and manipulate the image, but there are also other free alternatives out there which can accomplish the same goal.
One of the first things I usually do when inspecting images for print is to look at the color mode. You can do this by going to IMAGE>MODE and taking a look at which color mode is checked. The color should either be CMYK or grayscale. You can see that the image in this example is grayscale.
Next, you can take a look at the image size. I usually try to determine how large I can make the image and then deciding whether or not that works for whatever you’re using it in. Take a look at the image size by going to IMAGE>IMAGE SIZE.
You can see the image is 18.3×12.2 inches with a resolution of 240 DPI (Dots Per Inch). Here at Monster Media, our printers require a resolution of 75 DPI to produce an acceptable print. This means that any dpi that is over DPI can be resampled to create a larger image if needed.
When you uncheck the “resample image” checkbox and change the resolution to 75 DPI, your image size will automatically adjust to show the maximum print size.
Our image turns out to have a maximum print size is 58.65×39.04 inches.
The last thing to do is zoom in to 100% and confirm that everything looks good. Here’s our image at 100%. You can see everything looks sharp and clear.