/**
* Strip orientation from EXIF data for an image at a path.
*
* @param $filePath
*
* @return bool
*/
public function stripOrientationFromExifData($filePath)
{
if (!ImageHelper::canHaveExifData($filePath)) {
return null;
}
$data = new \PelDataWindow(IOHelper::getFileContents($filePath));
// Is this a valid JPEG?
if (\PelJpeg::isValid($data)) {
$jpeg = $file = new \PelJpeg();
$jpeg->load($data);
$exif = $jpeg->getExif();
if ($exif) {
$tiff = $exif->getTiff();
$ifd0 = $tiff->getIfd();
// Delete the Orientation entry and re-save the file
$ifd0->offsetUnset(\PelTag::ORIENTATION);
$file->saveFile($filePath);
}
return true;
} else {
return false;
}
}