Every PDF document has some Meta Information like Title, Author Name, Creation Date etc. Aspose.Pdf.Kit (Java Version ) allows developers to control this meta information.

 

To show meta information of the PDF documents, we use PdfFileInfo (Java Version ) class by calling its constructor that takes the input PDF file name as string argument. Then developers can display the meta information through properties ( Title (Java Version ) Author (Java Version ) CreationDate (Java Version ) Creator (Java Version ) Keywords (Java Version ) ModDate (Java Version ) Producer (Java Version ) Header (Java Version ) NumberOfPages (Java Version ) and Subject (Java Version ) of PdfFileInfo (Java Version ) class.

 

Code Snippet

 

[C#]

 

//Variable to hold input PDF file name and path

string inFile = ".\\example.pdf";

 

//Instantiating PdfFileInfo object and passing input PDF file to its constructor

PdfFileInfo fileInfo = new PdfFileInfo(inFile);

 

//Displaying Title of the input PDF file

System.Console.WriteLine("TITLE: " + fileInfo.Title);

 

//Displaying Author of the input PDF file

System.Console.WriteLine("AUTHOR:" + fileInfo.Author);

 

//Displaying Creation Date of the input PDF file

System.Console.WriteLine("CREATIONDATE:"+ fileInfo.CreationDate);

 

//Displaying Creator of the input PDF file

System.Console.WriteLine("CREATOR:"+fileInfo.Creator);

 

//Displaying Keywords of the input PDF file

System.Console.WriteLine("KeyWORDS:"+fileInfo.Keywords);

 

//Displaying Last Modification Date of the input PDF file

System.Console.WriteLine("MODDATE:"+fileInfo.ModDate);

 

[VB.NET]

 

'Variable to hold input PDF file name and path

Dim inFile As String =  ".\\example.pdf"

 

'Instantiating PdfFileInfo object and passing input PDF file to its constructor

Dim fileInfo As PdfFileInfo =  New PdfFileInfo(inFile)

 

'Displaying Title of the input PDF file

System.Console.WriteLine("TITLE: " + fileInfo.Title)

 

'Displaying Author of the input PDF file

System.Console.WriteLine("AUTHOR:" + fileInfo.Author)

 

'Displaying Creation Date of the input PDF file

System.Console.WriteLine("CREATIONDATE:"+ fileInfo.CreationDate)

 

'Displaying Creator of the input PDF file

System.Console.WriteLine("CREATOR:"+fileInfo.Creator)

 

'Displaying Keywords of the input PDF file

System.Console.WriteLine("KeyWORDS:"+fileInfo.Keywords)

 

'Displaying Last Modification Date of the input PDF file

System.Console.WriteLine("MODDATE:"+fileInfo.ModDate)

 

[Java]

 

PdfFileInfo fileInfo = new PdfFileInfo(inFile);

System.out.println("TITLE: " + fileInfo.getTitle());

System.out.println("AUTHOR:" + fileInfo.getAuthor());

System.out.println("CREATIONDATE:" + fileInfo.getCreationDate());

System.out.println("CREATOR:" + fileInfo.getCreator());

System.out.println("KeyWORDS:" + fileInfo.getKeywords());

System.out.println("MODDATE:" + fileInfo.getModDate());

HashMap header = fileInfo.getHeader();

Object[] headerKeys = header.keySet().toArray();

for (int hIndex = 0; hIndex < headerKeys.length; hIndex++) {

  System.out.println(headerKeys[hIndex].toString() + ":" + header.get(headerKeys[hIndex].toString()));

}