Which file?

Where will you use the logo?
What is the background?

File to use

File
SVG (or a transparent PNG)
Colour
RGB
Logo version
Full-colour (primary) logo

SVG stays sharp on every screen and the file is small. If you use a PNG, make it twice as wide as it will appear.

Formats

Six file types

FormatTypeGood forWatch out
AIVector, source fileThe original design file; editing and large prints.You need design software to open it.
EPSVectorThe format printers, sign makers and merchandise suppliers often ask for.The on-screen preview can look rough; it is meant for print.
PDFVectorSending to a printer; anyone can open it.It must be saved as vector. A PDF with an image embedded in it breaks up when enlarged.
SVGVectorWebsites and apps.Does not work in email or in older versions of Office.
PNGPixels, transparent backgroundSocial media, slides and email signatures.Turns blurry when enlarged; not suitable for print.
JPGPixels, solid backgroundImages with photos and use on a white background.Cannot be transparent; a white box stays behind the logo.

Good to know

Three basics