read texts in .pdf controls

Question

4.00/5 (2 votes)

See more:

Hi,
My goal is to read the texts inside the controls in the .pdf file...
I am using the iTextSharp reference...
The C# code below only reads the texts (Initially typed in the file) but NOT the texts typed in the controls.
Do you know how to solve this please?

Thanks

C#

private void button2_Click(object sender, EventArgs e)
        {
            string strText = string.Empty;
            string filename = @"C:\pdfTestFile.pdf";
            PdfReader pdfReader = new PdfReader(filename);
            for (int nPage = 1; nPage <= pdfReader.NumberOfPages; nPage++)
            {
                ITextExtractionStrategy its = new iTextSharp.text.pdf.parser.SimpleTextExtractionStrategy();
                PdfReader reader2 = new PdfReader(filename);
                String s = PdfTextExtractor.GetTextFromPage(reader2, nPage, its);

                s = Encoding.UTF8.GetString(ASCIIEncoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(s)));
                strText = strText + s;
                reader2.Close();
            }

            string strInput = strText;

        }

Posted 21-Mar-12 4:04am

arkiboys

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

El_Codero · Answer 1 · 2012-03-21T14:57:00

Solution 1

Hi,

C#

PdfReader myReader = new PdfReader(@"c:\test.pdf");
AcroFields myFields = myReader.AcroFields;

C#

foreach(KeyValuePair<string,iTextSharp.text.pdf.AcroFields.Item> pair in myFields.Fields)
           {
               MessageBox.Show(pair.Value + " " + pair.Key);
           }

Hope it works for you.

Regards

Posted 21-Mar-12 14:57pm

El_Codero

Updated 22-Mar-12 2:41am

v2

Comments

arkiboys 22-Mar-12 6:22am

Hi,
There is an error with red line under pdfReader.AcroFields.Fields
It gives the error message as follows:
Cannot implicitly convert type 'System.Collections.Generic.IDictionary<string,itextsharp.text.pdf.acrofields.item>' to 'iTextSharp.text.pdf.AcroFields'. An explicit conversion exists (are you missing a cast?

El_Codero 22-Mar-12 8:39am

Hi,
oh, seems something changed in iTextSharp library since my version,sorry for this.
Updated my solution.
With Best Regards

El_Codero 23-Mar-12 21:28pm

Could you please considering about accepting my answer? It's a sign for other users that solution works. Thank you!