C#如何利用itextSharp 设置一个PDF文档特定的文字 背景颜色,然后保存出来。最好有详细代码。我读取PDF的代码是://iTextSharp读取PDF内容
public static string ReadPdfContentok(string filepath)
{
try
{
string pdffilename = filepath;
PdfReader pdfReader = new PdfReader(pdffilename);
int numberOfPages = pdfReader.NumberOfPages;
StringBuilder text = new StringBuilder();
for (int i = 1; i <= numberOfPages; ++i)
{
text.Append(iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(pdfReader, i));
}
pdfReader.Close();
return text.ToString();
}
catch (Exception ex)
{
return "原因:" + ex.ToString();
}
}
public static string ReadPdfContentok(string filepath)
{
try
{
string pdffilename = filepath;
PdfReader pdfReader = new PdfReader(pdffilename);
int numberOfPages = pdfReader.NumberOfPages;
StringBuilder text = new StringBuilder();
for (int i = 1; i <= numberOfPages; ++i)
{
text.Append(iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(pdfReader, i));
}
pdfReader.Close();
return text.ToString();
}
catch (Exception ex)
{
return "原因:" + ex.ToString();
}
}
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