PICT
image/x-pict
Magic Bytes
Offset: 522
00 11 02 FF 0C 00
PICT format is a standard graphics file format developed by Apple Computer as the default metafile format for original Macintosh operating systems. It supports both vector graphics and bitmap images, serving as the primary exchange format for MacDraw, MacPaint, and early desktop publishing applications. Now considered a legacy format, PICT was largely superseded by PDF with the transition to Mac OS X and is generally considered safe for modern viewing environments.
Validation Code
How to validate .pict files in Python
Python
def is_pict(file_path: str) -> bool:
"""
Check if file is a valid PICT by magic bytes.
Signature offset: 522 bytes
"""
signature = bytes([0x00, 0x11, 0x02, 0xFF, 0x0C, 0x00])
with open(file_path, "rb") as f:
f.seek(522)
return f.read(6) == signatureHow to validate .pict files in Node.js
Node.js
function isPICT(buffer: Buffer): boolean {
// Signature offset: 522 bytes
const signature = Buffer.from([0x00, 0x11, 0x02, 0xFF, 0x0C, 0x00]);
if (buffer.length < 528) return false;
return buffer.subarray(522, 528).equals(signature);
}
Go
func IsPICT(data []byte) bool {
// Signature offset: 522 bytes
signature := []byte{0x00, 0x11, 0x02, 0xFF, 0x0C, 0x00}
if len(data) < 528 {
return false
}
return bytes.Equal(data[522:528], signature)
}API Endpoint
GET
/api/v1/pict
curl https://filesignature.org/api/v1/pict