Essential for submitting designs! What is the difference between vector images and raster images?
The difference between vector and raster images
Have you ever been asked to submit a vector image when submitting a design? Vector images and raster images have different image construction methods and are each suitable for different purposes.
🖋️ What is a vector image?
A vector image is an image format that expresses points and lines (paths) using mathematical formulas. It does not lose image quality even when enlarged or reduced, and is suitable for logos, icons, drawings, etc. The main file formats are .ai , .svg , .eps , etc.
🖼️ What is a raster image?
Raster images are image formats that are made up of a collection of pixels (dots). They are suitable for photographs and images with gradations, but the image quality may deteriorate when enlarged. The main file formats are .jpg , .png , .gif , etc.
🔍 Why do we need vector images?
There are several types of printing methods for personalization and OEM products. For example, monochromatic printing such as silk screen printing, hot stamping, and pad printing require vector images with clear lines.
With these printing methods, accurate printing is not possible unless the vector data has clear lines and does not distort when enlarged.
On the other hand, if you want to create an image that resembles a photograph or a gradation, a raster image is more suitable, and there is no problem with full-color printing such as digital printing.
🎨 When are raster images a good choice?
Raster images are suitable for full-color photo-like expressions and designs that utilize gradations. In recent years, advances in digital printing technology have made it possible to print high-quality raster images. However, a resolution of 300 dpi or higher is recommended.
🧠 How to vectorize your raster images!
The latest versions of Adobe Illustrator , for example, have a feature that can automatically trace raster images and convert them into vector images.
It does require some knowledge of how to operate it, but once you get used to it it's not that difficult.
For more information on how to use it, please see the official Adobe help page.
📌 Summary
- Vector images : They do not deteriorate even when enlarged or reduced, and are ideal for single-color printing (silk printing, hot stamping, etc.).
- Raster Images : Suitable for designs that include photographs and gradients, and supports full-color printing.
This means you need to choose the best design format depending on how you want to print the products you want to create .
If you have any questions, such as "Can I print this image?", please feel free to contact us.
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