How to extract title from .pdf file using c#

Question

I know that for Python such solution exist already (pypdf). But I hope that someone could suggest some library for C# for this issue.

Answer 1

A commonly used library for manipulating PDF files in .NET is iTextSharp which is a port of the iText library. Here's an example:

class Program
{
    static void Main()
    {
        PdfReader reader = new PdfReader("test.pdf");
        var title = reader.Info["Title"];
        Console.WriteLine(title);
    }
}

Answer 2

Docotic.Pdf library (Disclaimer: I work for the company) may be used to accomplish the task.

Please take a look at my answer for similar question.

Beyond that the library can do many other things of course.

Answer 3

How about this:

http://glenswords.wordpress.com/2007/07/16/extract-the-title-of-a-pdf-using-c/

Answer 4

One alternative to iTextSharp is PDFBOX. See CodeProject Tutorial for instructions on using it. This is slightly ugly since you're basically running a C# Java VM, but it's actually really easy to use.

Answer 5

If by "Title" you mean the Title keyword in the metadata in the Trailer of the PDF, then you can use a number of different tools. iTextSharp will do it, although I don't know the API well enough to give you code.

If you use dotImage, from Atalasoft (where I work, and incidentally, I wrote this code), you can do this:

PdfDocumentMetadata metadata  = PdfDocumentMetadata.FromStream(sourceStream);
Console.WriteLine("Title is \"{0}\"", metadata.Title);

This class also gives you Author, Subject, Keywords, Creator, Producer, CreationDate, ModificationDate, Trapped, and custom fields.

If you're talking about finding the title in XMP embedded in the PDF - well, that's a different beast entirely and I don't yet have support for pulling that out.