Categories:
Android (1)
Audio (7)
C/C++ (2)
Compression (7)
Database (6)
Document (14)
Email (3)
General (50)
Graphics (17)
Image (8)
Java (1)
Picture (1)
Presentation (7)
Programming (17)
Spreadsheet (11)
Video (8)
Web (13)
Windows (63)
XML (4)
Other Resources:
.GIF - File Extension for Image Files
File extension GIF is used for image files encoded in GIF (Graphics Interchange Format) format. A GIF sample file is provided. Free GIF editors are listed.
✍: FYIcenter.com
File Extension: .GIF
MIME Type: image/gif
File Content: Image data.
What is GIF? GIF is a short name for Graphics Interchange Format, which is a very popular format for storing images. GIF was invented by CompuServe in 1987.
GIF is the file extension for files storing images encoded in GIF format.
GIF format supports 256 (8-bit) distinct colors per pixel. Those 256 colors are selected from a 24-bit RGB color space and defined per image frame.
GIF format supports animations by storing multiple image frames.
GIF format uses the Lempel-Ziv-Welch (LZW) compression algorithm to reduce the file size. LZW compression is a lossless algorithm. Therefore, the compressed file still maintain all original color information on each pixel.
Here are the first 64 bytes of a sample GIF file dumped in HEX values:
47 49 46 38 39 61 a0 01 38 01 f7 00 00 00 00 00 GIF89a..8....... 80 00 00 00 80 00 80 80 00 00 00 80 80 00 80 00 ................ 80 80 80 80 80 c0 c0 c0 ff 00 00 00 ff 00 ff ff ................ 00 00 00 ff ff 00 ff 00 ff ff ff ff ff 00 00 00 ................
"GIF89a" seems to be the file marker for GIF files.
GIF sample file: Click sample.gif to download.
Image data stored in GIF files can be retrieved, displayed or edited by many free software:
2012-07-01, 6969👍, 0💬
Popular Posts:
What is MHT or MHTML? MHT or MHTML, short name for MIME HTML, is used as the file extension for MIME...
What is WMF or EMF? WMF stands for Windows Metafile. EMF stands for Enhanced Windows Metafile WMF or...
File extension DAT is used for multimedia files stored on VCD disks. A DAT sample file is provided. ...
What is MSG? MSG, short name for Message, is used as the file extension for Outlook Message Item fil...
What is CS? CS, short name for C Sharp, is used as the file extension for C# (C Sharp) files. .CS fi...