Format
DjVu File Format
Summary
- Name
- DjVu File Format
- Identifiers
-
- PUID: fmt/255
- MIME: image/x-djvu
- Format type
- Image (Raster)
- Description
- The Digital Video file format was developed as a videocassette format in the 1990s by a consortium of consumer video companies and is described in the IEC 61834 series of standards. DV video content utilizes Discrete Cosine Transform compression, but allows for higher quality than formats that use similar compression schemes. DV files can be "raw" with the .dv file extension or wrapped into video container formats.
- File extensions
-
djvu,djv - Source
- National Library of Singapore / National Library Board Singapore
- Developed by
- Caminova Corporation
- Supported by
- Caminova Corporation
Internal signatures
DjVu File Format
- Note
- Header ASCII: AT&T followed by container Chunk FORM, then either DJVMDIRM or DJVUINFO as secondary identifiers to DjVu document type. This is a generic signature which will identify all DjVu files up to DjVu specifications v3. No distinction is made between single or multi page documents, or any internal image encoding.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
41542654464F524D{4}(444A564D4449524D|444A5655494E464F)- Endianness
- None
Changelog
-
Updated in V120
- Release date
- 25 February 2025
DjVu File Format: New description added as part of PRONOM Research Week 2024. Submitted by Digital Research Alliance of Canada - Federated Research Data Repository / Alliance de recherche numérique du Canada - Dépôt fédéré de données de recherche.
-
Added in V46
- Release date
- 8 February 2011
DjVu Format: Record title updated from Document Express with DjVu Professional Edition and version information removed.
DjVu Format: Signature developed through PRONOM Research.