keep.php

#!/usr/bin/env php
<?php

require dirname(__DIR__) . '/vendor/autoload.php';

use Jcupitt\Vips;

function printMetadata($im)
{
    foreach ($im->getFields() as &$name) {
        $value = $im->get($name);
        if (str_ends_with($name, "-data")) {
            $len = strlen($value);
            $value = "<$len bytes of binary data>";
        }
        echo "   $name: $value\n";
    }
}

$im = Vips\Image::newFromFile($argv[1]);
echo "$argv[1]\n";
printMetadata($im);

echo "\nafter keep => icc\n";
$buf = $im->tiffsave_buffer(['keep' => Vips\ForeignKeep::ICC]);
$im2 = Vips\Image::newFromBuffer($buf, "");
printMetadata($im2);

echo "\nafter keep => exif|xmp\n";
$buf = $im->tiffsave_buffer(['keep' => Vips\ForeignKeep::ICC | Vips\ForeignKeep::XMP]);
$im2 = Vips\Image::newFromBuffer($buf, "");
printMetadata($im2);

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: expandtab sw=4 ts=4 fdm=marker
 * vim<600: expandtab sw=4 ts=4
 */