Drumlin Fully Secure PDF file (.drmz)
.drmz file signature | application/octet-stream
Drumlin Fully Secure PDF (DRMZ) is a proprietary document format created and maintained by Drumlin Security for protected PDF distribution. It is used for publishing manuals, reports, and other documents that require controlled access through compatible readers and authorization codes, including mobile viewing applications. The format is designed for rights management rather than open exchange; access is restricted by the publisher, and it is generally considered a legacy distribution method in some workflows.
Magic Bytes
Offset 0
7B 44 52 4D 50 44 4B 7D
Sources: Gary Kessler
Extension
.drmz
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .drmz files in Python
def is_drmz(file_path: str) -> bool:
"""Check if file is a valid DRMZ by magic bytes."""
signature = bytes([0x7B, 0x44, 0x52, 0x4D, 0x50, 0x44, 0x4B, 0x7D])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .drmz files in Node.js
function isDRMZ(buffer: Buffer): boolean {
const signature = Buffer.from([0x7B, 0x44, 0x52, 0x4D, 0x50, 0x44, 0x4B, 0x7D]);
return buffer.subarray(0, 8).equals(signature);
}How to validate .drmz files in Go
func IsDRMZ(data []byte) bool {
signature := []byte{0x7B, 0x44, 0x52, 0x4D, 0x50, 0x44, 0x4B, 0x7D}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
/api/v1/drmz
curl https://filesignature.org/api/v1/drmz
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .drmz file?
A .drmz file is a Drumlin Fully Secure PDF file file. Drumlin Fully Secure PDF (DRMZ) is a proprietary document format created and maintained by Drumlin Security for protected PDF distribution. It is used for publishing manuals, reports, and other documents that require controlled access through compatible readers and authorization codes, including mobile viewing applications. The format is designed for rights management rather than open exchange; access is restricted by the publisher, and it is generally considered a legacy distribution method in some workflows.
What are the magic bytes for .drmz files?
The magic bytes for Drumlin Fully Secure PDF file files are 7B 44 52 4D 50 44 4B 7D at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .drmz file?
To validate a .drmz file, read the first bytes of the file and compare them against the known magic bytes (7B 44 52 4D 50 44 4B 7D) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .drmz files?
There is no officially registered MIME type for .drmz files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .drmz files?
Drumlin Fully Secure PDF file (.drmz) 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.