GPS Tags

These GPS tags are part of the EXIF standard, and are stored in a separate IFD within the EXIF information.

ExifTool is very flexible about the input format for lat/long coordinates, and will accept 3 floating point numbers (for degrees, minutes and seconds) separated by just about anything. Many other GPS tags have values which are fixed-length strings. For these, the indicated string lengths include a null terminator which is added automatically by ExifTool.

When adding GPS information to an image, it is important to set all of the following tags: GPSLatitude, GPSLatitudeRef, GPSLongitude, GPSLongitudeRef, GPSAltitude and GPSAltitudeRef.

Tag IDTag Name WritableValues / Notes
0x0000 GPSVersionID int8u[4]  
0x0001 GPSLatitudeRef string[2] 'N' = North
'S' = South
0x0002 GPSLatitude rational64u[3]  
0x0003 GPSLongitudeRef string[2] 'E' = East
'W' = West
0x0004 GPSLongitude rational64u[3]  
0x0005 GPSAltitudeRef int8u 0 = Above Sea Level
1 = Below Sea Level
0x0006 GPSAltitude rational64u  
0x0007 GPSTimeStamp rational64u[3]  
0x0008 GPSSatellites string  
0x0009 GPSStatus string[2] 'A' = Measurement In Progress
'V' = Measurement Interoperability
0x000a GPSMeasureMode string[2] 2 = 2-Dimensional Measurement
3 = 3-Dimensional Measurement
0x000b GPSDOP rational64u  
0x000c GPSSpeedRef string[2] 'K' = km/h
'M' = mph
'N' = knots
0x000d GPSSpeed rational64u  
0x000e GPSTrackRef string[2] 'M' = Magnetic North
'T' = True North
0x000f GPSTrack rational64u  
0x0010 GPSImgDirectionRef string[2] 'M' = Magnetic North
'T' = True North
0x0011 GPSImgDirection rational64u  
0x0012 GPSMapDatum string  
0x0013 GPSDestLatitudeRef string[2] 'N' = North
'S' = South
0x0014 GPSDestLatitude rational64u[3]  
0x0015 GPSDestLongitudeRef string[2] 'E' = East
'W' = West
0x0016 GPSDestLongitude rational64u[3]  
0x0017 GPSDestBearingRef string[2] 'M' = Magnetic North
'T' = True North
0x0018 GPSDestBearing rational64u  
0x0019 GPSDestDistanceRef string[2] 'K' = Kilometers
'M' = Miles
'N' = Nautical Miles
0x001a GPSDestDistance rational64u  
0x001b GPSProcessingMethod undef  
0x001c GPSAreaInformation undef  
0x001d GPSDateStamp string[11]  
0x001e GPSDifferential int16u 0 = No Correction
1 = Differential Corrected

<-- ExifTool Tag Names


(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised May 24, 2006