static void Main(string[] args)
{
// Create Bytescout.PDFExtractor.TextExtractor instance
TextExtractor extractor = new TextExtractor();
extractor.RegistrationName = "demo";
extractor.RegistrationKey = "demo";
// Load sample PDF document
extractor.LoadDocumentFromFile(@".\sample2.pdf");
// Get page count
int pageCount = extractor.GetPageCount();
for (int i = 0; i < pageCount; i++)
{
string fileName = "page" + i + ".txt";
// Save extracted page text to file
extractor.SavePageTextToFile(i, fileName);
}
// Cleanup
extractor.Dispose();
// Open first output file in default associated application
ProcessStartInfo processStartInfo = new ProcessStartInfo(@".\page1.txt");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
static void Main(string[] args)
{
// Create Bytescout.PDFExtractor.TextExtractor instance
TextExtractor extractor = new TextExtractor();
extractor.RegistrationName = "demo";
extractor.RegistrationKey = "demo";
// Load sample PDF document
extractor.LoadDocumentFromFile(@".\sample2.pdf");
// Get page count
int pageCount = extractor.GetPageCount();
for (int i = 0; i < pageCount; i++)
{
string fileName = "page" + i + ".txt";
// Save extracted page text to file
extractor.SavePageTextToFile(i, fileName);
}
// Open first output file in default associated application
System.Diagnostics.Process.Start(@".\page1.txt");
}
static void Main(string[] args)
{
// Create Bytescout.PDFExtractor.TextExtractor instance
TextExtractor extractor = new TextExtractor();
extractor.RegistrationName = "demo";
extractor.RegistrationKey = "demo";
// Load sample PDF document
extractor.LoadDocumentFromFile("columns.pdf");
// read width of the very first page (zero index)
float pageWidth = extractor.GetPageRect_Width(0);
float pageHeight = extractor.GetPageRect_Height(0);
// now we are extracting content assuming we have 3 columns
// equally distributed on pages
// first calculate the width of the one column by dividing page width by number of columns (3)
float columnWidth = pageWidth / 3f;
// iterate through 3 columns
for (int i = 0; i < 3; i++)
{
// set the extraction area to the #i column
extractor.SetExtractionArea(i * columnWidth, 0, columnWidth, pageHeight);
string outFileName = "columns-column" + i + ".txt";
extractor.SavePageTextToFile(0, outFileName);
// Open output file in default associated application
System.Diagnostics.Process.Start(outFileName);
}
}
static void Main(string[] args)
{
// Create Bytescout.PDFExtractor.TextExtractor instance
TextExtractor textExtractor = new TextExtractor();
textExtractor.RegistrationName = "demo";
textExtractor.RegistrationKey = "demo";
// Create Bytescout.PDFExtractor.TableDetector instance
TableDetector tableDetector = new TableDetector();
tableDetector.RegistrationKey = "demo";
tableDetector.RegistrationName = "demo";
// Set table detection mode to "bordered tables" - best for tables with closed solid borders.
tableDetector.ColumnDetectionMode = ColumnDetectionMode.BorderedTables;
// We should define what kind of tables we should detect.
// So we set min required number of columns to 3 ...
tableDetector.DetectionMinNumberOfColumns = 3;
// ... and we set min required number of rows to 3
tableDetector.DetectionMinNumberOfRows = 3;
// Load sample PDF document
textExtractor.LoadDocumentFromFile(@".\sample3.pdf");
tableDetector.LoadDocumentFromFile(@".\sample3.pdf");
// Get page count
int pageCount = tableDetector.GetPageCount();
for (int i = 0; i < pageCount; i++)
{
int t = 1;
// Find first table and continue if found
if (tableDetector.FindTable(i))
{
do
{
// Set extraction area for CSV extractor to rectangle received from the table detector
textExtractor.SetExtractionArea(tableDetector.FoundTableLocation);
// Export the table to TEXT file
textExtractor.SavePageTextToFile(i, "page-" + i + "-table-" + t + ".txt");
t++;
}while (tableDetector.FindNextTable()); // search next table
}
}
// Cleanup
textExtractor.Dispose();
tableDetector.Dispose();
// Open first output file in default associated application (for demo purposes)
ProcessStartInfo processStartInfo = new ProcessStartInfo("page-0-table-1.txt");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
private void btnRunOCR_Click(object sender, EventArgs e)
{
TextExtractor extractor = new TextExtractor();
extractor.RegistrationName = "demo";
extractor.RegistrationKey = "demo";
// Load sample PDF document
extractor.LoadDocumentFromFile(pdfViewerControl1.InputFile);
// Enable Optical Character Recognition (OCR)
// in .Auto mode (SDK automatically checks if needs to use OCR or not)
extractor.OCRMode = OCRMode.Auto;
// Set the location of "tessdata" folder containing language data files
extractor.OCRLanguageDataFolder = @"c:\Program Files\Bytescout PDF Extractor SDK\net4.00\tessdata\";
// Set OCR language
extractor.OCRLanguage = "eng"; // "eng" for english, "deu" for German, "fra" for French, "spa" for Spanish etc - according to files in /tessdata
// Find more language files at https://github.com/tesseract-ocr/tessdata/tree/3.04.00
// Set PDF document rendering resolution
extractor.OCRResolution = 300;
// Set the extraction area to the viewer's selection rectangle
RectangleF[] selection = pdfViewerControl1.SelectionInPoints;
if (selection.Length > 0)
{
extractor.SetExtractionArea(selection[0]);
}
// Show wait cursor
Cursor = Cursors.WaitCursor;
try
{
// Perform OCR and save result to file
extractor.SavePageTextToFile(pdfViewerControl1.CurrentPageIndex, "result.txt");
}
finally
{
// Revert cursor to default
Cursor = Cursors.Default;
}
// Cleanup
extractor.Dispose();
// Open output file in default associated application
System.Diagnostics.Process.Start("result.txt");
}
