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Image File Magic Number

File type
Typicalextension
Hex digitsxx = variable
Ascii digits. = not an ascii char
FITS format
Open
.fits
53 49 4d 50 4c 45
SIMPLE
GIF format
Open
.gif
47 49 46 38
GIF8
Graphics Kernel System
Open
.gks
47 4b 53 4d
GKSM
IRIS rgb format
Open
.rgb
01 da
..
ITC (CMU WM) format
Open
.itc
f1 00 40 bb
....
JPEG File Interchange Format
Open
.jpg
ff d8 ff e0
....
NIFF (Navy TIFF)
Open
.nif
49 49 4e 31
IIN1
PM format
Open
.pm
56 49 45 57
VIEW
PNG format
Open
.png
89 50 4e 47
.PNG
Postscript format
Open
.[e]ps
25 21
%!
Sun Rasterfile
Open
.ras
59 a6 6a 95
Y.j.
Targa format
Open
.tga
xx xx xx
...
TIFF format (Motorola - big endian)
Open
.tif
4d 4d 00 2a
MM.*
TIFF format (Intel - little endian)
Open
.tif
49 49 2a 00
II*.
X11 Bitmap format
Open
.xbm
xx xx
XCF Gimp file structure
Open
.xcf
67 69 6d 70 20 78 63 66 20 76
gimp xcf
Xfig format
Open
.fig
23 46 49 47
#FIG
XPM format
Open
.xpm
2f 2a 20 58 50 4d 20 2a 2f
/* XPM */