Determine the number of pages in a PDF file

Question

I need to determine the number of pages in a specified PDF file using C # code (.NET 2.0). The PDF file will be read from the file system, not from the URL. Does anyone have any guidance on how this can be done? Note. Adobe Acrobat Reader is installed on the PC where this check will be performed.

Answer 1

You will need a PDF API for C #. iTextSharp is one of the possible APIs, although they may exist better.

ITextSharp Example

You must install iTextSharp.dll as a reference. Download iTextsharp from SourceForge.net. This is a complete working program using a console application.

using System; using System.Collections.Generic; using System.Linq; using System.Text; using iTextSharp.text.pdf; using iTextSharp.text.xml; namespace GetPages_PDF { class Program { static void Main(string[] args) { // Right side of equation is location of YOUR pdf file string ppath = "C:\\aworking\\Hawkins.pdf"; PdfReader pdfReader = new PdfReader(ppath); int numberOfPages = pdfReader.NumberOfPages; Console.WriteLine(numberOfPages); Console.ReadLine(); } } } 

Answer 2

This should do the trick:

 public int getNumberOfPdfPages(string fileName) { using (StreamReader sr = new StreamReader(File.OpenRead(fileName))) { Regex regex = new Regex(@"/Type\s*/Page[^s]"); MatchCollection matches = regex.Matches(sr.ReadToEnd()); return matches.Count; } } 

From the answer is Rachel and this one .

Answer 3

found a way http://www.dotnetspider.com/resources/21866-Count-pages-PDF-file.aspx it does not require the purchase of a PDF library

Answer 4

I used pdflib for this.

  p = new pdflib(); /* Open the input PDF */ indoc = p.open_pdi_document("myTestFile.pdf", ""); pageCount = (int) p.pcos_get_number(indoc, "length:pages"); 

Answer 5

Docotic.Pdf library can be used to complete the task.

Here is a sample code:

 PdfDocument document = new PdfDocument(); document.Open("file.pdf"); int pageCount = document.PageCount; 

The library will analyze as little as possible so that performance is in order.

Disclaimer: I am working on Bit Miracle.

Answer 6

One line:

 int pdfPageCount = System.IO.File.ReadAllText("example.pdf").Split(new string[] { "/Type /Page" }, StringSplitOptions.None).Count()-2; 

Recommended: ITEXTSHARP

Answer 7

Pdfsharp

it should be better =)

Answer 8

I have good success using CeTe Dynamic PDF products. They are not free, but well-documented. They did this job for me.

http://www.dynamicpdf.com/

Answer 9

I used the above code which solves the problem with regex and it works, but it is rather slow. It reads the entire file to determine the number of pages.

I used it in a web application, and the pages sometimes displayed 20 or 30 PDF files at a time, in which case the page load time was from a few seconds to almost a minute due to the page counting method.

I don’t know if third-party libraries will be much better, I hope they are, and I have successfully used pdflib in other scripts.