iTextSharp? ???? ?? ?? ??? ??

??:

iTextSharp? PDF ??? ???? ???? ?? ??? ???????? ??? ??? ???? ???? ???? ?? ??? ? ????. ? ????? iTextSharp? ???? PDF?? ??? ? ?? ??? ???? ??? ?????.

??? ?? ?? ??:

?? ?? ???? ????? ??? ?? ITextExtractionStrategy ??? ??? ? ????. ? ??? ??? ??? ??? ???? ??? ?????.

?? ??:

?? ??? ???, ?? ?? ? ?? ??? ?? ??? ???? ??? ???? ???? HTML? ???? ??? ?? ??? ?????.

<code>public class TextWithFontExtractionStategy : iTextSharp.text.pdf.parser.ITextExtractionStrategy
{
    // ... (此處省略)

    public void RenderText(iTextSharp.text.pdf.parser.TextRenderInfo renderInfo)
    {
        // 確定字體屬性
        string curFont = renderInfo.GetFont().PostscriptFontName;
        if (renderInfo.GetTextRenderMode() == (int)TextRenderMode.FillThenStrokeText)
        {
            curFont += "-Bold";
        }

        // 檢查基線、字體或字體大小的變化
        Vector curBaseline = renderInfo.GetBaseline().GetStartPoint();
        Single curFontSize = renderInfo.GetAscentLine().GetEndPoint()[Vector.I2] - curBaseline[Vector.I2];
        if ((this.lastBaseLine == null) || (curBaseline[Vector.I2] != lastBaseLine[Vector.I2]) ||
            (curFontSize != lastFontSize) || (curFont != lastFont))
        {
            // 生成帶有更新樣式的HTML span
            result.AppendFormat("</code>

???:

?? ??? ????? ???? ??? ? ?? ??? ? ????.

<code>PdfReader reader = new PdfReader("MyDocument.pdf");
TextWithFontExtractionStategy strategy = new TextWithFontExtractionStategy();
string textWithFormatting = PdfTextExtractor.GetTextFromPage(reader, 1, strategy);</code>

??:

textWithFormatting ???? ?? ? ?? ??? ??? ?? ??? ???? HTML ??? ?? ??? ???? ?????.

??:

? ??? ?? ?? ??? ???? ??? ???? PDF ???? ??? ? ????. ?? PDF ??? ???? ???? ???? ???? ? ??? ? ?? ??? ?????.

? ??? iTextSharp? ???? PDF?? ??? ??? ???? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!