A Breakdown of File Format Types
and how to use them
When I complete a logo design I always give my client versions in multiple file formats. Each format has a particular use, so with today’s blog post, I’d like to break each type down so you will know which file is right for your next project.
Let’s first take a look at image resolutions.
Hi-Res (high resolution) is 300 dpi (dots per inch) and is used for magazine and high-quality prints.
Lo Res (low resolution) is 75 dpi and is used for online and screen use only.
Two things to remember a Hi-Res photo will slow down any website and a Lo-Res photo will look horrible as a portrait on your wall.
Now for files
Raster Files – These have a fixed pixel pattern
- .jpg – Joint Photographic Experts Group.
Used for high-quality photography and can also be used for low resolution online use.
A .jpg image will lose quality if you scale it over its pixel width (meaning is you make it bigger then it should be it will look aweful)
- .png – Portable network graphics
Used for graphics and images on the Internet
Do not use for print
.png files cannot be scaled over its pixel width
Transparent background allows you to see graphics behind it
- .tiff – Tagged Image File Format
Commonly known as “print ready” file format
These files are too large for website design
- .gif – graphics interchange format
Used for online use
Can be used for animation as an image
Similar to a .png but a lower quality
Vector – these are shapes created using mathematics
- .eps – Encapsulated postscript file
Used for logo and illustrations
Can be scaled to any size without losing quality
Best for use in large format printing
- .pdf – Portable Document Format
Used for sharing documents
Can be scaled without losing resolution
Most printers prefer this type of file
Until next time,
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