PaintShop Pro Image

import magic
# Libmagic can typically detect the '~BK' header as a PaintShop Pro file
print(magic.from_file('project.pspimage', mime=True)) # Outputs 'image/x-paintshoppro' or 'image/psp'

const fs = require('fs');
// Manually detecting the '~BK\x00' magic bytes
const buffer = Buffer.alloc(4);
const fd = fs.openSync('project.pspimage', 'r');
fs.readSync(fd, buffer, 0, 4, 0);
fs.closeSync(fd);
const isPSP = buffer[0] === 0x7E && buffer[1] === 0x42 && buffer[2] === 0x4B && buffer[3] === 0x00;
console.log('Is Corel PaintShop Pro:', isPSP);

import (
    "bytes"
    "net/http"
)
// Native Go HTTP detection does not recognize PSP.
// You must explicitly check the 4-byte signature:
// isPSP := bytes.HasPrefix(buf, []byte{0x7E, 0x42, 0x4B, 0x00})

$mime = mime_content_type('project.pspimage');
echo $mime; // Standard PHP setups will likely return 'image/x-paintshoppro' or 'application/octet-stream' depending on system magic definitions