Text extraction from a PDF using iText7. How to improve its performance?
问题 Currently, I use this code to extract text from a Rectangle (area). public static class ReaderExtensions { public static string ExtractText(this PdfPage page, Rectangle rect) { var filter = new IEventFilter[1]; filter[0] = new TextRegionEventFilter(rect); var filteredTextEventListener = new FilteredTextEventListener(new LocationTextExtractionStrategy(), filter); var str = PdfTextExtractor.GetTextFromPage(page, filteredTextEventListener); return str; } } It works, but I don't know if it's the