Get text from PDF stored in LocalFolder using iTextSharp

Question

I am trying to get the text from a PDF stored in localStorage in a Windows Phone 8.1 application,but I always get an FileNotFoundException.

To explain the whole story, I get a PDF from an online source, I store it to a folder with name same as the username (The username is an email address, but I tried also without the @ sign) of the user and then I want to get some text from the PDF file. I use iTextSharp and follow the examples, but cannot succeed. When I send the PDF to the Launcher is opening succesfully with another app like Acrobat Reader.

My function is like below. I first send an PDF Object, which has an attribute called Path and it is stored to folder specific to the username of the user. Then I get the pdf as a StorageFile Item. When I create the PDFReader calling the constructor I get a FileNotFoundException. Does anybody knows or can guess what can be the problem? Is iTextSharp compatible with Windows Phone 8.1?

internal async Task<bool> OpenPdfFromDownloadedCollections(PDF pdfToOpen, string username)
    {
        try
        {
            StorageFolder folder = ApplicationData.Current.LocalFolder;
            var pdfFolder = await folder.GetFolderAsync(username + "PDFs");

            var pdf = await pdfFolder.GetFileAsync(Object.Path);

            StringBuilder text = new StringBuilder();
            using (PdfReader reader = new PdfReader(pdf.Path))
            {
                for (int i = 1; i <= reader.NumberOfPages; i++)
                {
                    string thePage = PdfTextExtractor.GetTextFromPage(reader, i, its);
                    string[] theLines = thePage.Split('\n');
                    foreach (var theLine in theLines)
                    {
                        text.AppendLine(theLine);
                    }
                }
            }
            return true;
        }
        catch (Exception)
        {
            return false;
        }
    }

As I can understand from other Posts and videos it may not work with Windows Phone version because of some conflicts with System.Drawing.dll. — Andreas777
Same as i heard. I think you need to check if for other components that can do the trick for you. There is a blogpost of Microsoft blogs.msdn.com/b/eternalcoding/archive/2013/04/15/… maybe thats what you are looking for. — Boot750
The others are all paid and expensive, but are working as I tried a trial one. What I need is to get a barcode from a pdf and display it on screen. Do you know any free library to convert pdf to Image or Text except this one? — Andreas777

soumya sambit Kunda soumya sambit Kunda · Accepted Answer · 2015-07-24T12:37:11

var pdf = await pdfFolder.GetFileAsync(Object.Path);

In this line of code you should only pass the file name but you are giving the whole Path as parameter. As pdfFolder currently represents the path.

Get text from PDF stored in LocalFolder using iTextSharp

1 Answers