Adobe InDesign document
application/x-adobe-indesign
Magic Bytes
Offset: 0
06 06 ED F5 D8 1D 46 E5 BD 31 EF E7 FE 74 B7 1D
Adobe InDesign Document (INDD) is a proprietary page layout format developed and maintained by Adobe Inc. for professional desktop publishing. This format stores comprehensive layout data, including text, images, and formatting styles, primarily for creating print publications like magazines, brochures, and books. Due to its complex internal database structure, INDD files are generally not backward compatible and require the native application for accurate rendering and editing.
Validation Code
How to validate .indd files in Python
def is_indd(file_path: str) -> bool:
"""Check if file is a valid INDD by magic bytes."""
signature = bytes([0x06, 0x06, 0xED, 0xF5, 0xD8, 0x1D, 0x46, 0xE5, 0xBD, 0x31, 0xEF, 0xE7, 0xFE, 0x74, 0xB7, 0x1D])
with open(file_path, "rb") as f:
return f.read(16) == signatureHow to validate .indd files in Node.js
function isINDD(buffer: Buffer): boolean {
const signature = Buffer.from([0x06, 0x06, 0xED, 0xF5, 0xD8, 0x1D, 0x46, 0xE5, 0xBD, 0x31, 0xEF, 0xE7, 0xFE, 0x74, 0xB7, 0x1D]);
return buffer.subarray(0, 16).equals(signature);
}How to validate .indd files in Go
func IsINDD(data []byte) bool {
signature := []byte{0x06, 0x06, 0xED, 0xF5, 0xD8, 0x1D, 0x46, 0xE5, 0xBD, 0x31, 0xEF, 0xE7, 0xFE, 0x74, 0xB7, 0x1D}
if len(data) < 16 {
return false
}
return bytes.Equal(data[:16], signature)
}API Endpoint
/api/v1/indd
curl https://filesignature.org/api/v1/indd
Related Formats
Frequently Asked Questions
What is a .indd file?
A .indd file is a Adobe InDesign document file. Adobe InDesign Document (INDD) is a proprietary page layout format developed and maintained by Adobe Inc. for professional desktop publishing. This format stores comprehensive layout data, including text, images, and formatting styles, primarily for creating print publications like magazines, brochures, and books. Due to its complex internal database structure, INDD files are generally not backward compatible and require the native application for accurate rendering and editing.
What are the magic bytes for .indd files?
The magic bytes for Adobe InDesign document files are 06 06 ED F5 D8 1D 46 E5 BD 31 EF E7 FE 74 B7 1D at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .indd file?
To validate a .indd file, read the first bytes of the file and compare them against the known magic bytes (06 06 ED F5 D8 1D 46 E5 BD 31 EF E7 FE 74 B7 1D) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .indd files?
The primary MIME type for .indd files is application/x-adobe-indesign.
Is it safe to open .indd files?
Adobe InDesign document (.indd) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.