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PBT (.pbt)

.pbt file signature | application/octet-stream

PhotoCap Template

Safe

Magic Bytes

Offset 0
78 56 34

Sources: Wikipedia

Extension

.pbt

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .pbt files in Python

Python 
def is_pbt(file_path: str) -> bool:
    """Check if file is a valid PBT by magic bytes."""
    signature = bytes([0x78, 0x56, 0x34])
    with open(file_path, "rb") as f:
        return f.read(3) == signature

How to validate .pbt files in Node.js

Node.js 
function isPBT(buffer: Buffer): boolean {
  const signature = Buffer.from([0x78, 0x56, 0x34]);
  return buffer.subarray(0, 3).equals(signature);
}

How to validate .pbt files in Go

Go 
func IsPBT(data []byte) bool {
    signature := []byte{0x78, 0x56, 0x34}
    if len(data) < 3 {
        return false
    }
    return bytes.Equal(data[:3], signature)
}

API Endpoint

GET /api/v1/pbt
curl https://filesignature.org/api/v1/pbt

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .pbt file?

A .pbt file is a PBT file. PhotoCap Template

What are the magic bytes for .pbt files?

The magic bytes for PBT files are 78 56 34 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .pbt file?

To validate a .pbt file, read the first bytes of the file and compare them against the known magic bytes (78 56 34) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .pbt files?

There is no officially registered MIME type for .pbt files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .pbt files?

PBT (.pbt) 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.