FH50
image/x-freehand
Magic Bytes
Offset: 0
41 47 44 32
The FH50 file format is a legacy vector graphics document created by version 5.0 of FreeHand, a distinct design application formerly published by Macromedia. It functions as a container for scalable illustrations, complex page layouts, and typography used in professional digital art and print production. While the file structure poses minimal security risks, the software was discontinued by Adobe in 2007, making this an obsolete format that requires legacy viewers or conversion tools.
Validation Code
How to validate .fh50 files in Python
Python
def is_fh50(file_path: str) -> bool:
"""Check if file is a valid FH50 by magic bytes."""
signature = bytes([0x41, 0x47, 0x44, 0x32])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .fh50 files in Node.js
Node.js
function isFH50(buffer: Buffer): boolean {
const signature = Buffer.from([0x41, 0x47, 0x44, 0x32]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsFH50(data []byte) bool {
signature := []byte{0x41, 0x47, 0x44, 0x32}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/fh50
curl https://filesignature.org/api/v1/fh50