How to extract text from a specific area of an existing PDF document.

The following code extracts text from a specific region on a PDF page.

PDFOperation op = new PDFOperation("sample.pdf", "");

int pageNumber = 1;

string text = op.ExtractText(pageNumber, new RectangleF(880, 740, 120, 20), UnitOfMeasure.Pixel);

op.Close();

Console.WriteLine(text);