ZIP Tags

The following tags are extracted from ZIP archives. ExifTool also extracts additional meta information from compressed documents inside some ZIP-based files such Office Open XML (DOCX, PPTX and XLSX), Open Document (ODB, ODC, ODF, ODG, ODI, ODP, ODS and ODT), iWork (KEY, PAGES, NUMBERS), Capture One Enhanced Image Package (EIP), Adobe InDesign Markup Language (IDML), and Electronic Publication (EPUB). The ExifTool family 3 groups may be used to organize ZIP tags by embedded document number (ie. the exiftool -g3 option).

Index2Tag Name WritableValues / Notes
2 ZipRequiredVersion no  
3 ZipBitFlag no  
4 ZipCompression no
0 = None
1 = Shrunk
2 = Reduced with compression factor 1
3 = Reduced with compression factor 2
4 = Reduced with compression factor 3
5 = Reduced with compression factor 4
6 = Imploded
7 = Tokenized
8 = Deflated
9 = Enhanced Deflate using Deflate64(tm)
10 = Imploded (old IBM TERSE)
12 = BZIP2
14 = LZMA (EFS)
18 = IBM TERSE (new)
19 = IBM LZ77 z Architecture (PFS)
96 = JPEG recompressed
97 = WavPack compressed
98 = PPMd version I, Rev 1
5 ZipModifyDate no  
7 ZipCRC no  
9 ZipCompressedSize no  
11 ZipUncompressedSize no  
15 ZipFileName no  

ZIP GZIP Tags

These tags are extracted from GZIP (GNU ZIP) archives, but currently only for the first file in the archive.

Index1Tag Name WritableValues / Notes
2 Compression no 8 = Deflated
3 Flags no Bit 0 = Text
Bit 1 = CRC16
Bit 2 = ExtraFields
Bit 3 = FileName
Bit 4 = Comment
4 ModifyDate no  
8 ExtraFlags no 0 = (none)
2 = Maximum Compression
4 = Fastest Algorithm
9 OperatingSystem no
0 = FAT filesystem (MS-DOS, OS/2, NT/Win32)
1 = Amiga
2 = VMS (or OpenVMS)
3 = Unix
4 = VM/CMS
5 = Atari TOS
6 = HPFS filesystem (OS/2, NT)
7 = Macintosh
8 = Z-System
9 = CP/M
10 = TOPS-20
11 = NTFS filesystem (NT)
12 = QDOS
13 = Acorn RISCOS
255 = unknown
10 ArchivedFileName no  
11 Comment no  

ZIP RAR Tags

These tags are extracted from RAR archive files.

Index1Tag Name WritableValues / Notes
0 CompressedSize no  
4 UncompressedSize no  
8 OperatingSystem no 0 = MS-DOS
1 = OS/2
2 = Win32
3 = Unix
13 ModifyDate no  
18 PackingMethod no
0x30 = Stored
0x31 = Fastest
0x32 = Fast
   0x33 = Normal
0x34 = Good Compression
0x35 = Best Compression
25 ArchivedFileName no  

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised May 26, 2014

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