tabula-sharp

tabula-sharp is a library for extracting tables from PDF files — it is a port of tabula-java

• Supports netstandard2.0, net462, net471, net6.0, net8.0
• No java bindings

NuGet packages available on the releases page and on www.nuget.org:

• Tabula
• Tabula.Json
• Tabula.Csv

Differences with tabula-java

• Uses PdfPig, and not PdfBox.
• Coordinate system starts from the bottom left point (going up) of the page, and not from the top left point (going down).
• The NurminenDetectionAlgorithm is replaced by SimpleNurminenDetectionAlgorithm, because it requieres an image management library.
• Table results might be different because of the way PdfPig builds Letters bounding box.

Usage

Stream mode - BasicExtractionAlgorithm

using (PdfDocument document = PdfDocument.Open("doc.pdf", new ParsingOptions() { ClipPaths = true }))
{
    ObjectExtractor oe = new ObjectExtractor(document);
    PageArea page = oe.Extract(1);

    // detect canditate table zones
    SimpleNurminenDetectionAlgorithm detector = new SimpleNurminenDetectionAlgorithm();
    var regions = detector.Detect(page);

    IExtractionAlgorithm ea = new BasicExtractionAlgorithm();
    List<Table> tables = ea.Extract(page.GetArea(regions[0].BoundingBox)); // take first candidate area
    var table = tables[0];
    var rows = table.Rows;
}

Lattice mode - SpreadsheetExtractionAlgorithm

using (PdfDocument document = PdfDocument.Open("doc.pdf", new ParsingOptions() { ClipPaths = true }))
{
    ObjectExtractor oe = new ObjectExtractor(document);
    PageArea page = oe.Extract(1);

    IExtractionAlgorithm ea = new SpreadsheetExtractionAlgorithm();
    List<Table> tables = ea.Extract(page);
    var table = tables[0];
    var rows = table.Rows;
}

Results

Stream mode - BasicExtractionAlgorithm

Lattice mode - SpreadsheetExtractionAlgorithm