JPGM (.jpgm)
.jpgm file signature | image/jpm
Magic Bytes
Offset 0
00 00 00 0C 6A 50 20 20 0D 0A 87 0A
Sources: Apache Tika
Extension
.jpgm
MIME Type
image/jpm
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .jpgm files in Python
def is_jpgm(file_path: str) -> bool:
"""Check if file is a valid JPGM by magic bytes."""
signature = bytes([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .jpgm files in Node.js
function isJPGM(buffer: Buffer): boolean {
const signature = Buffer.from([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A]);
return buffer.subarray(0, 12).equals(signature);
}How to validate .jpgm files in Go
func IsJPGM(data []byte) bool {
signature := []byte{0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
/api/v1/jpgm
curl https://filesignature.org/api/v1/jpgm
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .jpgm file?
A .jpgm file is a JPGM file.
What are the magic bytes for .jpgm files?
The magic bytes for JPGM files are 00 00 00 0C 6A 50 20 20 0D 0A 87 0A at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .jpgm file?
To validate a .jpgm file, read the first bytes of the file and compare them against the known magic bytes (00 00 00 0C 6A 50 20 20 0D 0A 87 0A) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .jpgm files?
The primary MIME type for .jpgm files is image/jpm.
Is it safe to open .jpgm files?
JPGM (.jpgm) 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.