"Retrieve some information about a document. For PDF files, key\n"
"can have the following values:\n\n"
"\"title\", \"subject\", \"keywords\", \"author\", \"creator\", \"producer\",\n"
"Retrieve some information about a document. For PDF files, key\n"
"can have the following values:\n\n"
"\"title\", \"subject\", \"keywords\", \"author\", \"creator\", \"producer\",\n"