ExifTool is a free software program for reading, writing, and manipulating image, audio, and video metadata.
Written by Phil Harvey, exiftool is one of the most powerful command-line metadata extraction tools available. It supports hundreds of different file and metadata formats -- including many that are manufacturer-specific. The entire tool is well-documented and written in Perl.
Below is a list of file types and meta information formats currently supported by ExifTool (r = read, w = write, c = create):
File Types
------------+-------------+-------------+-------------+------------
3FR r | DVB r | M4A/V r | PBM r/w | RWL r/w
3G2 r | DYLIB r | MEF r/w | PDF r/w | RWZ r
3GP r | EIP r | MIE r/w/c | PEF r/w | RM r
ACR r | EPS r/w | MIFF r | PFA r | SO r
AFM r | ERF r/w | MKA r | PFB r | SR2 r/w
AI r/w | EXE r | MKS r | PFM r | SRF r
AIFF r | EXIF r/w/c | MKV r | PGF r | SRW r/w
APE r | F4A/V r | MNG r/w | PGM r/w | SVG r
ARW r/w | FLA r | MOS r/w | PICT r | SWF r
ASF r | FLAC r | MOV r | PMP r | THM r/w
AVI r | FLV r | MP3 r | PNG r/w | TIFF r/w
BMP r | FPX r | MP4 r | PPM r/w | TTC r
BTF r | GIF r/w | MPC r | PPT r | TTF r
COS r | GZ r | MPG r | PPTX r | VRD r/w/c
CR2 r/w | HDP r/w | MPO r/w | PS r/w | WAV r
CRW r/w | HTML r | MQV r | PSB r/w | WDP r/w
CS1 r/w | ICC r/w/c | MRW r/w | PSD r/w | WEBP r
DCM r | IIQ r/w | MXF r | PSP r | WEBM r
DCP r/w | IND r/w | NEF r/w | QTIF r | WMA r
DCR r | ITC r | NRW r/w | RA r | WMV r
DFONT r | JNG r/w | NUMBERS r | RAF r/w | X3F r/w
DIVX r | JP2 r/w | ODP r | RAM r | XCF r
DJVU r | JPEG r/w | ODS r | RAR r | XLS r
DLL r | K25 r | ODT r | RAW r/w | XLSX r
DNG r/w | KDC r | OGG r | RIFF r | XMP r/w/c
DOC r | KEY r | ORF r/w | RSRC r | ZIP r
DOCX r | LNK r | OTF r | RTF r |
DV r | M2TS r | PAGES r | RW2 r/w |
Meta Information
----------------------+----------------------+---------------------
EXIF r/w/c | CIFF r/w | Ricoh RMETA r
GPS r/w/c | AFCP r/w | Picture Info r
IPTC r/w/c | Kodak Meta r/w | Adobe APP14 r
XMP r/w/c | FotoStation r/w | MPF r
MakerNotes r/w/c | PhotoMechanic r/w | Stim r
Photoshop IRB r/w/c | JPEG 2000 r | APE r
ICC Profile r/w/c | DICOM r | Vorbis r
MIE r/w/c | Flash r | SPIFF r
JFIF r/w/c | FlashPix r | DjVu r
Ducky APP12 r/w/c | QuickTime r | M2TS r
PDF r/w/c | Matroska r | PE/COFF r
PNG r/w/c | GeoTIFF r | AVCHD r
Canon VRD r/w/c | PrintIM r | ZIP r
Nikon Capture r/w/c | ID3 r | (and more)
