DTD files exist as 2 different types. Please find information about each of them below.
Type 1: Document Type Definition File
A DTD defines the valid elements and attributes. It defines the structure of a document. A DTD can be declared inline or externally. DTDs are used in SGML family languages like XML and HTML. DTDs allo...
General Information
| Title | DTD File Extension |
| Extension | .dtd |
| Full Form | Document Type Definition File |
| File Type | XML Schema File |
| Developer | World Wide Web Consortium (W3C) |
| MIME Type | application/xml-dtd |
File Function
| Primary Function | Define XML structure |
| Additional Functions | Validate XML data |
| Features | Markup declaration, Rule definition |
File Characteristics
| Quality | Markup rules |
| Supports Layers | No |
| Supports Transparency | No |
| Editable | Yes |
Use Cases
| XML Schemas | Yes |
| Web Development | Yes |
| Data Interchange | Yes |
Security and Practices
| Security Risks | DTD attacks |
| Best Practices | Secure DTDs, External entities validation |
Historical/Version Information
| Initial Release | 1988 |
| Latest Version | XML 1.1 (2006) |
Associated Types
| Similar Extensions | .xml, .xsd, .xsl, .xslt |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
 XML Editors |
Varies | Windows, Mac, Linux |
| Web Browsers |
Free | Windows, Mac, Linux |
 Adobe FrameMaker |
Paid | Windows, Mac |
Type 2: Design Tools Draw File
A DTD file contains a 2D drawing. 2D Design software creates these drawings. The software has sophisticated functions but is easy to use. The drawings can have lines, shapes, and colors. They can be r...
General Information
| Title | .DTD File Extension |
| Extension | .dtd |
| Full Form | Document Type Definition File |
| File Type | XML Schema File |
| Developer | W3C |
| MIME Type | application/xml-dtd |
File Function
| Primary Function | Define XML structure |
| Additional Functions | Validate XML data |
| Features | Custom tags, Entities |
File Characteristics
| Quality | Text-based |
| Supports Layers | N/A |
| Supports Transparency | N/A |
| Editable | Yes |
Use Cases
| XML Schema | Yes |
| Web Services | Yes |
| Data Interchange | Yes |
Security and Practices
| Security Risks | Injection attacks |
| Best Practices | Sanitize input, Use secure parsers |
Historical/Version Information
| Initial Release | 1988 |
| Latest Revision | XML 1.1 (2006) |
Associated Types
| Similar Extensions | .xml, .xsd, .xsl |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
| Adobe Dreamweaver |
Subscription | Windows, Mac |
 Microsoft XML Notepad |
Free | Windows |
 Eclipse IDE |
Free | Windows, Mac, Linux |