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CAP 105 Lesson 2: File Formats

An overview of file formats used by graphic design and video professionals that PR/Advertising pros will work with.
by

Adrienne Wallace

on 16 February 2015

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Transcript of CAP 105 Lesson 2: File Formats

Common Graphic Design File Formats
.AI
Adobe Illustrator
Vector Files.
Used by Designers / Printers.
Created in Layers.
Can be Easily Edited (w/ proper software).
.EPS
Encapsulated Postscript
Most used to transfer image / art into another app.
Can be vector-based (scaled to any size).
.PDF
Portable Document Format
Universal file type.
Preserves / embeds fonts, images, layout, etc.
Sometimes used for printing but mostly for proofs.
.PSD
PhotoShop Document
Usually a raster format.
Used for graphics and photos.
Commonly used by designers / printers.
Created in layers for easy editing (w/ proper software).
Raster:
A rectangular pattern of parallel scanning lines followed by the electron beam on a television screen or computer monitor.
Vector Graphic:
Instead of pixels, vector graphics are comprised of paths, which are defined by a start and end
point, along with other points, curves, and angles along the way.
.JPG
Joint Photographic Experts Group
Compressed image file.
No transparent background.
Can be compressed as needed, but quality decreases with more compression.
.GIF
Graphics Interchange Format
Low resolution files used for the web b/c they are supported by all browsers.
Compressed = small file size.
Support transparent background.
Can be animated.
.TIF
Tagged Image File Format
Used for storing images, usually by professionals.
Good for high-quality images.
Reliable and compatible across most platforms.
.PNG
Portable Network Graphics
Commonly used for web design due to low resolution.
Use lossless data compression (so they look good even when compressed).
Support transparent background.
Common Video File Formats
.AVI
Audio Video Interlaced
Old standard developed by Microsoft for Windows.
Files are large (raw).
Can have compatibility issues (due to codecs used for compression)
Codec:
A piece of software that can encode or decode a digital data stream or signal. The term is actually a portmanteau of "
Co
mpressor /
Dec
ompressor"
There are hundreds of codecs in use, which can cause compatibility issues.
.FLV
Flash Video Format
Good for compression while still keeping high quality image.
Used heavily online (all Youtube videos are FLV).
May soon be replaced by MP4 H.264 and HTML5
.MPEG
Motion Picture Experts Group
Developed in 1988.
Asymmetric; encoder is more complex than decoder (so the tech powering the video stream can improve and the decoder can still work).
Used in DVDs.
.MP4
MPEG -4 Part 14
Very efficient yet still produces high quality video.
Used by most cameras / smartphones.
Recommended for uploading to Youtube.
.WMV
Lesson 2:
File Formats

Windows Media Video
HD DVD and Blu-Ray Physical Delivery formats in recent form of V9
Originally developed as a competitor to RealVideo, an Internet streaming service
Standardized in motion picture agencies and widely accepted
Full transcript