Raster vs.vector: What's the difference and when should you use which?
Raster and vector are two different ways of building graphics.Raster graphics consist of pixels, while vector graphics consist of mathematical lines and curves.The main difference is that raster loses quality when enlarged, while vector can be scaled without quality loss.
This makes raster best for photos and vector best for logos, illustrations, prints and graphics that need to be used in multiple sizes.
In this guide, you will get a simple explanation of the difference between raster and vector, which file types belong to each category, and when you should convert from raster to vector.
Short answer: the difference between raster and vector
If you just want the quick answer, here it is:
Raster graphics are made up of pixels
Vector graphics are made up of lines, points, curves and surfaces
Grids become pixelated when zoomed
Vector remains sharp at all sizes
Grids are typically used for photos
Vector is typically used for logos and print files
This means that you should usually choose raster for images and vector for graphics that must be sharp and flexible.
What is raster graphics?
Raster graphics are images that consist of a fixed number of pixels.Each pixel has a color and together they form the image.
The more pixels an image contains, the higher resolution it typically has.But even a high-resolution raster image has a limit.When scaled up beyond its original size, it loses sharpness.
Examples of raster formats
The most common raster formats are:
JPG / JPEG
PNG
GIF
TIFF
BMP
WebP
Grids are often used for
Raster graphics are best suited for:
- photographs
- screenshots
- pictures for social media
- web graphics
- banners
- images with many details and color transitions
Advantages of grids
The advantages of raster graphics include:
- good for photos
- good for realistic subjects
- supports many color shades
- standard format on web and mobile
Disadvantages of grids
The disadvantages are in particular:
- loses quality when enlarged
- may be pixelated
- less suitable for large size printing
- not ideal for logos and production
What is vector graphics?
Vector graphics are made of mathematical shapes instead of pixels.This means that the elements in the graphics are calculated when they are displayed, and therefore they can be scaled up and down without losing sharpness.
That's why vector graphics are the standard for logos, signs, print files and illustrations with clean lines.
Examples of vector formats
The most common vector formats are:
SVG
AI
EPS
Vector is often used for
Vector graphics are best suited for:
- logos
- icons
- illustrations
- signs
- large format print
- clothing print
- embroidery files
- technical drawings
Advantages of vector
The advantages of vector graphics are:
- can be scaled without quality loss
- sharp lines in all sizes
- easy to edit
- ideal for printing and production
- more future-proof for branding
Disadvantages of vector
The disadvantages are typically:
- not suitable for ordinary photos
- less suitable for very complex color gradients
- often requires clean-up when converting
Raster vs.vector: the main difference
The main difference between raster and vector is scaling.
A raster image has a fixed number of pixels.When you make it bigger, the pixels become more visible and the image appears less sharp.
A vector image consists of shapes and curves that can be calculated in any size.Therefore, it remains sharp, regardless of whether it is used on a business card or a large facade.
This is also why professional logos should almost always be found as vector files.
When should you use grids?
You should normally select raster when working with:
- photos
- images for website
- social media
- digital campaigns
- motifs with many colors, shadows and textures
If the image is only to be displayed digitally in a certain size, raster is often a good solution.
When should you use vector?
You should normally choose vector when working with:
- logos
- graphics for printing
- signs and large format
- illustrations
- icons
- clothing print
- embroidery
- graphics that must be scalable
If the file is to be used professionally in several places and in different sizes, vector is usually the right choice.
What if you only have a PNG or JPG?
This is a very common challenge.Many companies only have their logo as a PNG or JPG, often taken from a website, an old email or a screenshot.
It can work fine for small digital purposes, but becomes a problem when the logo is to be used for:
- printed matter
- signs
- car foil
- facade print
- exhibition material
- profile clothing
In those cases, the logo should be converted from raster to vector.
Can you just save a PNG as SVG?
No, not if you want a true vector file.
You can change the file extension or export to another format, but that does not automatically make the graphic a real vector.To get a correct vector file, the graphics must be vectorized or line drawn, so that shapes, curves and details are built up correctly.
This is an important difference because many people think that a file becomes vector just by saving it as SVG, PDF or AI.It doesn't necessarily do that.
Automatic vectorization vs.manual cleaning
Automatic vectorization can be fast, but the result is often uneven.Lines can become jagged, small details can disappear, and text rarely turns out completely correct.
Manual cleanup usually gives the best results, especially when:
- logos
- signature graphics
- simple illustrations
- graphic elements with precise shapes
If quality is important, manual vectorization will often be the best solution.
That's why vector graphics are important for businesses
A correct vector file makes it easier to use your graphics professionally across platforms and materials.
With a vector file you typically get:
- a sharper visual expression
- better print quality
- fewer problems with printers and manufacturers
- more flexible use of logos and graphics
- a more consistent visual identity
For companies, it is therefore a good investment to have logos and central graphic elements saved in real vector formats.
Conclusion
Raster and vector are used for different purposes.
Raster is best for photos and pixel-based images.
Vector is best for logos, illustrations and graphics that need to be sharp at all sizes.
If you only have a logo as a JPG, PNG or scan and you need to use it for print or professional branding, it is often best to have it vectorized.It provides a sharper, more flexible and usable file.
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What is the difference between raster and vector?
Raster consists of pixels, while vector consists of mathematical shapes.Raster blurs when enlarged, while vector remains sharp.
Is PNG raster or vector?
PNG is raster graphics.This means that the file consists of pixels.
Is SVG raster or vector?
SVG is usually a vector format.It is often used for logos, icons and web graphics.
Which format is best for logos?
SVG, AI, EPS and PDF are typically the best formats for logos because they can be scaled without quality loss.
Can you convert JPG to vector?
Yes, a JPG can be vectorized, but it often requires manual clean-up to achieve a professional result.
Why is my logo pixelated?
This usually happens because the logo is saved as a raster graphic in too low a resolution, for example as JPG or PNG.
When should I use vector graphics?
You must use vector graphics for logos, prints, signs, illustrations and all graphics that must be scalable.
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