bitmap

FAQs - bitmap
 

Vector

raster

 

Vector Graphics 

Raster Graphics 

Image is created by 

Geometrical shapes, lines (vectors) A grid of pixels

Capable of spot colours?

Yes Technically yes, but not without difficulty and only in some file formats.

Capable of RGB and CMYK colours?

Yes Yes

Good for photos?

No Yes

Good for logos?

Yes No. Raster files are quite bad for logos.

Typical file formats

AI, EPS, PDF, SVG JPEG, PSD, TIF, PNG

Scalable to any size?

Yes No

So which one is better?

Neither. They both have their uses. A photo should be stored as a pixel-based format such as TIF and JPEG, but when a logo is stored in these formats serious limitations are placed on its ability to be scaled, printed and used in general. A logo should be stored as a vector file.

Can I just re-save the file into a vector format?

No, that's impossible. In order for a raster file to be made into a vector file it needs to be re-drawn or traced. A computer can do this (Adobe Illustrator has this ability) but it can only do a nice job under certain conditions. Normally a human will need to do this process using some vector tools. Simply re-saving your image as an AI, EPS or PDF will not convert your file into vector data.

Still confused?

Don't worry about it. Give us a call.

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