Sample Programm doesn't produce searchable pdf file

[luke92]

I tried to convert a pdf file to an pdf ocr file using the sample from GdPicture.Net "PDF to PDF-OCR".
I was able to produce a file, but the file isn't searchable for text. Do I have to modify the sample program to make it work?

Thanks for your help.

[Loïc]

Hi,

Please send the resulting PDF to http://support.gdpicture.com for investigation.

If you provided the good dictionary path, the program should works.

Kind regards,

Loïc

[luke92]

I used the standard dictionary path C:\Programme\GdPicture.NET\Redist\Commons\OCR

[Loïc]

OK. Please send the produced PDF for investigation purpose.

[ryancole11]

Can you please keep me informed about this? I am currently trying to use that example code to turn a non-searchable PDF into an OCR'd searchable PDF, also. The example code is not producing a searchable PDF. The example code only produces a PDF/A but does not have any embedded text. I know that it is at least performing the OCR operations with the dictionary files because each page takes a couple of seconds to process. There is no need for an example PDF because this does not work for any PDF that I test it with.

I am using C# and the .NET version of GdPicture Pro and Tesseract. Here's my code:

http://dpaste.org/uLWu/

Code: Select all

String dictionaries = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + @"\dictionaries";

// open the new pdf in the viewer
viewer.DisplayFromFile(out_file);

for (int x = 1; x <= viewer.PageCount; x++)
{
   Console.WriteLine("Performing image twain on page {0}", x);

   viewer.DisplayFrame(x);
   Int32 rasterized_page = viewer.GetNativeImage();

   if (x == 1)
      imaging.TwainPdfOCRStartEx(String.Format("{0}.ocr.pdf", out_file), "", "", "", "", "", PdfEncryption.PdfEncryptionNone, PdfRight.PdfRightCanModify);

   imaging.TwainAddGdPictureImageToPdfOCR(rasterized_page, TesseractDictionary.TesseractDictionaryEnglish, dictionaries);
}

// close the twaining
imaging.TwainPdfOCRStop();
viewer.CloseImage();


[Loïc]

Hi,

Please send a standalone application reproducing the issue + input and output PDF to http://support.gdpicture.com

Kind regards,

Loïc

[ryancole11]

Alright, give me about 30 minutes. I'm in the middle of something, at the moment.