Vector vs. Raster Artwork Formats
Knowing the difference between a “Vector” and “Raster” (aka Bitmap) image is very important. When submitting images for engraving, make sure you send the right type of artwork file for the job. Logos/Clipart should be created in a vector based application, like Adobe Illustrator or CorelDraw and sent to us in a vector format. How do I know if my image is vector or raster. This post is to help you understand each format and which one you have.
VECTOR:
- Made up of points and paths using a mathematical relationship
- Vector images CAN be resized to any size without distorting the quality of the image
- This is the best format for laser engraving.
- File types: AI, EPS, CDR, SVG, PDF can contain both raster and vector image
RASTER:
- Made up of dots/squares called pixels which are part of a grid and filled in with color
- High resolution images (300+ dpi) have more pixels per inch resulting in a clearer image
- Low resolution images (72 dpi) the less pixels per inch resulting in a chunkier image
- Raster images CANNOT be resized without losing image quality
- Best for photography and viewing images on the web or on monitors but NOT for engraving
- High resolution images will work great for Full Color Sublimation process.
- Raster file types: JPEG, PNG, GIF, PSD and TIF (…just to name a few)
Want to learn more about Vector vs Raster? Here are some great links that go into great detail about this subject:
- Coastal Engraving’s Artwork Page
- wikipedia.org – Vector Graphics
- wikipedia.org – Raster Graphics
- dakatec.com – Blog Post – Raster versus Vector
- vector-conversions.com – Blog Post – Raster vs Vector
- logodesignworks.com – Blog Post – Vector Graphics & Raster Graphics Difference
- artofdeveloping.com – Blog Post – Raster vs Vector Graphics