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File Formats

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Angela Peavey

on 2 October 2017

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Transcript of File Formats

Common File Formats
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.
Raster Files
EPS = Encapsulated Postscript
* Most used to transfer
image / art onto another
* Can be vector based
(scaled to any size)
Ai = Adobe Illustrator
File Formats
* Vector Files
* Used by designers and printers
* Created in Layers
* Can be easily edited with proper software.
A rectangular pattern of parallel scanning lines followed by the electron beam on a TV screen or computer monitor.
PDF = Portable Document Format
* Universal File Type
* Preserves, embeds fonts, images, layouts, 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 (with proper software)
JPG/JPEG = Joint Photographic Experts Group
* Compressed image file
* No transparent background
* Can be compressed as needed, but quality
decreases with more
GIF = Graphics
Interchange Format
* Low resolution files used for web b/c they are supposed by all browsers
* Compressed = small file size
* Support transparent background
* Can be animated
TIFF = Tagged File Format
* Used for storing images, typically by professionals
* Good for high quality images
* Reliable and readable across most platforms
PNG = Portable Network Graphics
* Commonly used for web design due to low resolution
* Uses lossless data compression (so files look good even when compressed)
* Supports a transparent background
= Color scheme associated with TVs, computers, LCD monitors, and scanners. ADDITIVE color mode = combines primary colors (red, green, blue). Programs that use this file type have the largest range of color options.
= Color scheme associated with printing on paper. Four color mode uses cyan, magenta, yellow, and black. SUBTRACTIVE color = light is removed or absorbed to create colors.
PPI = Pixels Per Inch
DPI = Dots Per Inch

Screen = 72 ppi
Print = 300 dpi

Common Video File Formats
AVI = Audio Video Interlaced
* Old standby developed by Microsoft for Windows
* Files are large (raw)
* Can have compatibility issues
A piece of software that can encode or decode a digital data stream or signal.

Hundreds of codec's are being used online to play your files such as:
- Audio & video compression
- Streaming video over the internet
- Videoconferencing
- Playing MP3's
- Screen capturing
- Some ppl who share their files online use codec to shrink their files
FLV = Flash Video Format
* Good for compressing files and keeping excellent quality
* May soon be replaced by MP4, H.264 and HTML5
MPEG = Motion Pictures Expert Group
* Developed in 1988
* Audio/Video Storage
* Asymmetric; encoder is more complex than decoder (so the tech powering the video stream can improve and the decoder can still work)
MP4 = MPEG 4 Part 14
* Very efficient and still produces high quality video
* Used by most cameras and smartphones
* Recommended for uploading to YouTube
WMV = Windows Media Video
* HD DVD and BluRay physical delivery formats in recent forms of V9
* Originally developed as a competitor to RealVideo, an internet streaming service.
* Standardized in Motion Picture Agencies and widely accepted
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