Im设置具有表单锁定PDF的下载功能-用户填写表单后可用。我希望PDF可以被搜索引擎索引。我试图创建一个JSON-LD标记,这将允许搜索引擎索引这些PDF。这是我目前想出的代码。
{
"@type": "PresentationDigitalDocument",
"name": "Name of the document",
"alternativeHeadline": "",
"headline": "",
"author": "",
"contributor": "",
"copyrightHolder": "",
"inLanguage": "";
"encodingFormat": "application/pdf",
"isAccessibleForFree": "False",
"hasPart": {
"@type": "PresentationDigitalDocument",
"isAccessibleForFree": "False",
"url": ""
},
}
问题是,如果搜索引擎实际上将转到指定的URL,则对PDF进行爬网并为其所有内容编制索引?或者我宁愿使用“ cssSelector”代替URL,并将PDF文件的全部内容作为html写入隐藏的div中,如下所示:
"hasPart": {
"@type": "WebPageElement",
"isAccessibleForFree": "False",
"cssSelector": ".css-class"
}