Vector & Raster Images

There are several file formats when saving & transporting image files. When creating logos within Adobe Illustrator we looked into Vector & Raster files. Exploring the advantages & disadvantages of these file formats.

Vectors– A vector is a mathematical shape based object, combined of code. Made up of lines & paths, each line and path can be assigned a colour.They are created within computer software. Being resolution independent it would maintain quality when stretched and made bigger,  always appearing smooth no matter how large you make it or how close you zoom in.

The size of the file would take up a lot of memory, easily transferable from designer to cellist, through PDF/email. When saving it in to a PDF again it wouldn’t lose any quality, could be sent an scaled, without losing any quality. Can be easily converted to raster

Colours can be easily increased or reduced ,to adjust printing budget.

Typeafces are often vector images, allowing the font to keep a clean & smooth look.

Raster – A Raster based image is comprised of pixels. You can identify a raster image by zooming into it , as it will look pixelated and rough.

The larger the image, the more space the image file will take up. Unlike the vector, you cannot change the size of the image, as it would distort more and more, losing quality overall.Commonly called a Bitmap. The higher DPI & PPI help towards the large file size.

Difficult to print raster images using a limited amount of spot colours, altering the quality of the image overall. The conversion to vector may take a lot longer.



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