参照论坛例子http://www.foxtable.com/bbs/dispbbs.asp?BoardID=2&replyID=78567&ID=150881&skin=1拟做pdf文件加盖电子印章遇到如下问题:
1、我下载得到的dll文件如下:
此主题相关图片如下:3.png
2.外部引用dll文件如下:【没有论坛例子里面的spire.pdf.graphics这个文件】
此主题相关图片如下:1.png
执行代码【凡是sG红色部分均报错,有没有办法解决呢?】
Dim pdf As Spire.Pdf.PdfDocument = New Spire.Pdf.PdfDocument()
pdf.LoadFromFile("C:\Users\Administrator\Desktop\公文助手20201224\Reports\ 入党申请谈话通知书.pdf")
Dim page As Spire.Pdf.PdfPageBase = pdf.Pages(0)
Dim state As sG.PdfGraphicsState = page.Canvas.Save()
Dim x As Integer = 200
Dim y As Integer = 300
Dim width As Integer = 200
Dim height As Integer = 120
Dim pen As New sG.PdfPen(Color.Black, 1f)
Dim brush As sG.PdfBrush = New sG.PdfSolidBrush(Color.OrangeRed)
page.Canvas.DrawRectangle(pen, brush, New Rectangle(New Point(x, y), New Size(width, height)))
page.Canvas.Restore(state)
Dim result As String = "C:\Users\Administrator\Desktop\公文助手20201224\Reports\ 入党申请谈话通知书00.pdf"
pdf.SaveToFile(result)
报错如下:
此主题相关图片如下:2.png