A vectorized file is a design technique that uses lines to create a design instead of pixels (dots). Because vectorized designs use this technique, you can make the design as big or small as you require without losing resolution. This allows for large scale printing and it also makes it the industry standard format for logo designs.
If the design is not vectorized, when you scale it larger, it would appear pixelated or blurry.
When completing the handover process, if you’re not sure if your files are vectorized, feel free to contact our support team, and we’d be happy to take a look for you!