public static bool IsPdfPageBlank(string pdf_file, int page)
{
var text_found = false;
try
{
if (!System.IO.File.Exists(pdf_file))
{
throw new Exception("File does not exist.");
}
var reader = new iTextSharp.text.pdf.PdfReader(pdf_file);
var strat = new Models.Utilities.iTextSharpUtilities.MyLocationTextExtractionStrategy();
var text = iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(reader, page, strat);
var re = new System.Text.RegularExpressions.Regex(@"^[a-zA-Z0-9\s,]*$");
if (!re.IsMatch(text))
{
text_found = true;
}
reader.Close();
}
catch (Exception ex)
{
System.Diagnostics.Debug.Write(ex.Message);
}
return(text_found);
}
public static bool IsPdfPageBlank(System.IO.MemoryStream pdf_stream, int page)
{
var text_found = false;
try
{
var reader = new iTextSharp.text.pdf.PdfReader(pdf_stream.ToArray());
var strat = new Models.Utilities.iTextSharpUtilities.MyLocationTextExtractionStrategy();
var text = iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(reader, page, strat);
var re = new System.Text.RegularExpressions.Regex(@"[a-zA-Z0-9]");
if (!re.IsMatch(text))
{
text_found = true;
}
reader.Close();
}
catch (Exception ex)
{
System.Diagnostics.Debug.Write(ex.Message);
}
return(text_found);
}
