fileinput pdf编辑初始化预览

var $fileLinkInput = $('#file_link_full');
$fileLinkInput.fileinput({
    language: 'zh',
    uploadUrl: '<?php echo Yii::$app->urlManager->createUrl(['file/image', 'type' => 'work_file']);?>',
    initialPreview: [defaultFile],
    initialPreviewAsData: true,
    initialPreviewFileType: 'pdf',
    allowedFileExtensions: ['docx', 'doc', 'pdf'],
    overwriteInitial: false,
    maxFileSize: 10000,
    maxFilesNum: 1,
    slugCallback: function (filename) {
        return filename.replace('(', '_').replace(']', '_');
    }
});