ORF (.orf)
.orf file signature | image/x-raw-olympus
Olympus Raw Format (ORF) is a digital camera image file format developed by Olympus Corporation for storing raw sensor data from its cameras. It is used for photography workflows, including exposure correction, color adjustment, and post-processing in image editors and raw converters. ORF files are generally safe, though malformed images can expose vulnerabilities in software that parses raw formats, so they should be opened with updated applications from trusted sources.
Magic Bytes
Offset 0
49 49 52 4F
Sources: Apache Tika
Extension
.orf
MIME Type
image/x-raw-olympus
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .orf files in Python
def is_orf(file_path: str) -> bool:
"""Check if file is a valid ORF by magic bytes."""
signature = bytes([0x49, 0x49, 0x52, 0x4F])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .orf files in Node.js
function isORF(buffer: Buffer): boolean {
const signature = Buffer.from([0x49, 0x49, 0x52, 0x4F]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .orf files in Go
func IsORF(data []byte) bool {
signature := []byte{0x49, 0x49, 0x52, 0x4F}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/orf
curl https://filesignature.org/api/v1/orf
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .orf file?
A .orf file is identified by the magic bytes 49 49 52 4F at byte offset 0. Olympus Raw Format (ORF) is a digital camera image file format developed by Olympus Corporation for storing raw sensor data from its cameras. It is used for photography workflows, including exposure correction, color adjustment, and post-processing in image editors and raw converters. ORF files are generally safe, though malformed images can expose vulnerabilities in software that parses raw formats, so they should be opened with updated applications from trusted sources.
What are the magic bytes for .orf files?
The magic bytes for ORF files are 49 49 52 4F at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .orf file?
To validate a .orf file, read the first bytes of the file and compare them against the known magic bytes (49 49 52 4F) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .orf files?
The primary MIME type for .orf files is image/x-raw-olympus.
Is it safe to open .orf files?
ORF (.orf) 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.