Extract Text from pdf using C#

Question

Hi,
We are Solution developer using Acrobat,as we have reuirement of extracting text from pdf using C# we have downloaded adobe sdk and installed. We have found only four exmaples in C# and those are used only for viewing pdf in windows application. Can you please guide us how to extract text from pdf using SDK in C#.
Thanks you for your help.
Regards
kiranmai

Answer 1

Okay so I went ahead and actually added the text extraction functionality to my own C# application, since this was a requested feature by the client anyhow, which originally we were told to bypass if it wasn't "cut and dry", but it wasn't bad so I went ahead and gave the client the text extraction that they wanted. Decided I'd post the source code here for you. This returns the text from the entire document as a string.
       private static string GetText(AcroPDDoc pdDoc)
            AcroPDPage page;
            int pages = pdDoc.GetNumPages();
            string pageText = "";
            for (int i = 0; i < pages; i++)
                page = (AcroPDPage)pdDoc.AcquirePage(i);
                object jso, jsNumWords, jsWord;
                List<string> words = new List<string>();
                try
                    jso = pdDoc.GetJSObject();
                    if (jso != null)
                        object[] args = new object[] { i };
                        jsNumWords = jso.GetType().InvokeMember("getPageNumWords", BindingFlags.InvokeMethod, null, jso, args, null);
                        int numWords = Int32.Parse(jsNumWords.ToString());
                        for (int j = 0; j <= numWords; j++)
                            object[] argsj = new object[] { i, j, false };
                            jsWord = jso.GetType().InvokeMember("getPageNthWord", BindingFlags.InvokeMethod, null, jso, argsj, null);
                            words.Add((string)jsWord);
                    foreach (string word in words)
                        pageText += word;
                catch
            return pageText;