Raster vs vector explained

Raster vs vector in plain words

Raster is a grid of pixels. Vector is shapes defined by math. Each works best in different situations.

A raster file like JPEG or PNG stores colored squares. Zoom in and edges can look blocky when enlarged. A vector file like SVG or EPS stores points and curves, so it can scale to any size and stay crisp. A PDF can contain vector, raster, or both; treat it as a container format.

Why this matters

Logos must look sharp on screens, shirts and signs. If you only have a small raster logo, it will blur when you stretch it. A vector master gives you clean edges and easier color and layout tweaks.

What to use when

• Logos, icons and line art: vector. Keep an SVG or EPS as your master file, and keep a PDF export for printers.
• Photos and complex textures: raster. Use JPEG for most photos. Use PNG when you need a transparent background.
• Web: use SVG for logos and icons. Use JPEG or PNG for photos.
• Print: send vector when possible. If you must send raster, export at the final size at 300 DPI, which means dots per inch on paper.

Quick checks

• Zoom test: open the file and zoom way in. If edges stay smooth at large zoom, it is vector. If you see blocks, it is raster.
• File clue: .svg and .eps are vector formats. .pdf can contain vector or raster.
• File clue: .jpg, .jpeg and .png are raster formats.
• Backgrounds: need a clear background behind your logo on a photo? Use PNG or SVG. JPEG does not support transparency.
• Printer ask: ask your printer which file they prefer. Many printers accept PDF and EPS for signs and apparel.

Before and after example

A non-profit sent me a small PNG logo for a large event banner. It looked fuzzy when scaled. I rebuilt the logo as SVG and provided a PDF export. The printer produced clean edges at full size, and the same files now support their website header and shirts.

What to do this week

• Find your logo master file. If you only have raster, ask your designer to provide SVG or EPS, plus a PDF export for printers.
• Create a logo kit folder with SVG, EPS, a PDF export and PNG versions in color, white and dark.
• Update your website header to use SVG for the logo.
• For upcoming print, send vector first. If not available, export raster at 300 DPI at final size.

If you want help, I handle vector logo cleanup and exports through Content & Media > Logo & Branding. I also prepare print ready files through Content & Media > Print Design.