Once your sketches are refined, it is time to bring them into a vector design application. Logos must be built as vector graphics so they can scale to any size without losing quality. This lesson introduces the core concepts and tools you need.
Vector vs. Raster
Raster images (like JPGs and PNGs) are made of pixels — tiny colored squares arranged in a grid. When you zoom in, they become blurry. Vector images are made of mathematical paths — points, lines, and curves defined by coordinates. They remain perfectly sharp whether printed on a business card or a billboard.
Key differences:
- Raster: pixel-based, resolution-dependent, used for photos and complex textures
- Vector: path-based, infinitely scalable, used for logos, icons, and illustrations
Popular vector tools include Adobe Illustrator, Figma, Affinity Designer, and the free open-source application Inkscape. The core concepts below apply to all of them.
Basic Shapes
Most logos are built from a surprisingly small set of basic shapes: rectangles, circles, ellipses, triangles, and polygons. Vector applications provide shape tools that let you draw these precisely and adjust their dimensions numerically.
A powerful technique is to construct complex forms from simple shapes. The mastercard logo, for example, is just two overlapping circles. Start with basic shapes and combine or subtract them to create more intricate forms.
The Pen Tool
The pen tool is the most important tool in any vector application. It lets you place anchor points and connect them with straight lines or curves. Mastering the pen tool takes practice, but it gives you complete control over any shape.
Essential pen tool concepts:
- Anchor points are the nodes that define the shape. Fewer anchor points generally means smoother, cleaner curves.
- Handles (or control points) extend from anchor points and control the direction and depth of curves.
- Bezier curves are the smooth curves created by adjusting handles. Named after Pierre Bezier, they are the mathematical foundation of vector graphics.
A good practice when tracing your sketch is to place anchor points at the extremes of each curve — the topmost, bottommost, leftmost, and rightmost positions. This produces the smoothest results with the fewest points.
Pathfinder Operations
Pathfinder (called Boolean operations in some tools) lets you combine shapes in powerful ways:
- Unite (Union): merges two shapes into one
- Subtract (Minus Front): cuts one shape out of another
- Intersect: keeps only the overlapping area
- Exclude: removes the overlapping area and keeps the rest
These operations are essential for constructing logos from basic shapes. For example, you can create a crescent moon by placing two circles on top of each other and using Subtract.
Alignment and Precision
Logos demand pixel-perfect alignment. Use your tool's alignment and distribution features to center elements, space them evenly, and snap to grids. Small misalignments that are invisible on screen become obvious in print.
Helpful habits for precision:
- Turn on snap to grid and snap to point
- Use the align panel to center objects relative to each other or to the artboard
- Check measurements numerically in the properties panel rather than eyeballing
- Zoom in to 400% or more to inspect curves and intersections
Practical Tips
- Work in black and white first. Color can distract from the form. Build the shape in solid black, then add color later.
- Keep your layers organized. Name layers and groups so you can find elements quickly.
- Save early and often. Vector files are small, so there is no reason not to save frequently.
- Expand strokes before delivering. Convert any stroked paths to filled shapes so the logo looks the same in every application.
With these fundamentals, you have the tools to translate your best sketches into clean, scalable logo artwork ready for refinement and delivery.