Leo created PDFBOX-3175:
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             Summary: PDFTextStreamEngine probably miscalculates text height
                 Key: PDFBOX-3175
                 URL: https://issues.apache.org/jira/browse/PDFBOX-3175
             Project: PDFBox
          Issue Type: Bug
          Components: Text extraction
    Affects Versions: 2.0.0
            Reporter: Leo


When parsing a PDF document, TextPosition is created with constant text height, 
about 2 time smaller than character width, regardless of font size.
The following workaround to calculate dyDisplay fixes the issue:

        float verticalScaling = 1/1000f;
        if (font instanceof PDType3Font) {
            Matrix fontMatrix = font.getFontMatrix();
            verticalScaling = fontMatrix.getValue(1, 1);
        }
        float dyDisplay = bbox.getHeight() * fontSize * verticalScaling;




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