Adobe FrameMaker MIF document (.mif)
.mif file signature | application/vnd.mif
Adobe FrameMaker MIF (Maker Interchange Format) is a text-based document format created and maintained by Adobe Systems for exchanging FrameMaker content. It is used to import, export, and automate technical documentation, manuals, and other structured publications within Adobe FrameMaker and compatible tools. As a legacy interchange format, it is generally safe, though files from untrusted sources should still be reviewed because text-based documents can contain unexpected embedded instructions.
Magic Bytes
Offset 0
3C 4D 61 6B 65 72 46 69 6C 65
Sources: Apache Tika
All Known Signatures
9 signature variants are documented for .mif files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 3C 4D 61 6B 65 72 46 69 6C 65 | 0 | Apache Tika |
| 3C 4D 49 46 46 69 6C 65 | 0 | Apache Tika |
| 3C 4D 61 6B 65 72 44 69 63 74 69 6F 6E 61 72 79 | 0 | Apache Tika |
| 3C 4D 61 6B 65 72 53 63 72 65 65 6E 46 6F 6E 74 | 0 | Apache Tika |
| 3C 4D 4D 4C | 0 | Apache Tika |
| 3C 42 6F 6F 6B | 0 | Apache Tika |
| 3C 4D 61 6B 65 72 | 0 | Apache Tika |
| 3C 4D 61 6B 65 72 46 69 6C 65 20 | 0 | Gary Kessler |
| 56 65 72 73 69 6F 6E 20 | 0 | Gary Kessler |
Extension
.mif
MIME Type
application/vnd.mif
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .mif files in Python
def is_mif(file_path: str) -> bool:
"""Check if file is a valid MIF by magic bytes."""
signature = bytes([0x3C, 0x4D, 0x61, 0x6B, 0x65, 0x72, 0x46, 0x69, 0x6C, 0x65])
with open(file_path, "rb") as f:
return f.read(10) == signatureHow to validate .mif files in Node.js
function isMIF(buffer: Buffer): boolean {
const signature = Buffer.from([0x3C, 0x4D, 0x61, 0x6B, 0x65, 0x72, 0x46, 0x69, 0x6C, 0x65]);
return buffer.subarray(0, 10).equals(signature);
}How to validate .mif files in Go
func IsMIF(data []byte) bool {
signature := []byte{0x3C, 0x4D, 0x61, 0x6B, 0x65, 0x72, 0x46, 0x69, 0x6C, 0x65}
if len(data) < 10 {
return false
}
return bytes.Equal(data[:10], signature)
}API Endpoint
/api/v1/mif
curl https://filesignature.org/api/v1/mif
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .mif file?
A .mif file is a Adobe FrameMaker MIF document file. Adobe FrameMaker MIF (Maker Interchange Format) is a text-based document format created and maintained by Adobe Systems for exchanging FrameMaker content. It is used to import, export, and automate technical documentation, manuals, and other structured publications within Adobe FrameMaker and compatible tools. As a legacy interchange format, it is generally safe, though files from untrusted sources should still be reviewed because text-based documents can contain unexpected embedded instructions.
What are the magic bytes for .mif files?
The magic bytes for Adobe FrameMaker MIF document files are 3C 4D 61 6B 65 72 46 69 6C 65 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .mif file?
To validate a .mif file, read the first bytes of the file and compare them against the known magic bytes (3C 4D 61 6B 65 72 46 69 6C 65) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .mif files?
The primary MIME type for .mif files is application/vnd.mif.
Is it safe to open .mif files?
Adobe FrameMaker MIF document (.mif) 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.