现在做开发的,特别是企业站和产品,和门户网图片资源,都喜欢加上水印,说到底就是为了防别人下载走!不过现在有反水印的程序,好像说只要知道你加水印文字之类的信息就可以破解了.这年头反正能加就能减,道一C魔高一Z!
程序代码Function JpegPersits
if SiteConfig("WatermarkType")=0 then
Jpeg.Canvas.Font.Color = Replace(SiteConfig("WatermarkFontColor"),"#","&h") '颜色
Jpeg.Canvas.Font.Family = SiteConfig("WatermarkFontFamily") '字体
Jpeg.Canvas.Font.size = SiteConfig("WatermarkFontSize") '大小
Jpeg.Canvas.Font.Bold = CBool(SiteConfig("WatermarkFontIsBold")) '是否加粗
'Jpeg.Canvas.Font.ShadowXoffset = 10 '水印文字阴影向右偏移的像素值，输入负值则向左偏移
'Jpeg.Canvas.Font.ShadowYoffset = 10 '水印文字阴影向下偏移的像素值，输入负值则向右偏移
Title = SiteConfig("WatermarkText")
TitleWidth = Jpeg.Canvas.GetTextExtent(Title)
if Jpeg.Width<TitleWidth then exit function '图片比水印文字小，则不加水印
select case SiteConfig("WatermarkWidthPosition")
case "left"
PositionWidth=10
case "center"
PositionWidth=(Jpeg.Width - TitleWidth) / 2
case "right"
PositionWidth= Jpeg.Width - TitleWidth - 10
end select
Jpeg.Canvas.Print PositionWidth, 10, Title
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
elseif SiteConfig("WatermarkType")=1 then
Set Jpeg2 = Server.CreateObject("Persits.Jpeg")
Jpeg2.Open Server.MapPath(SiteConfig("WatermarkImage"))
Jpeg2Width=Jpeg2.OriginalWidth
Jpeg2Height=Jpeg2.OriginalHeight
if Jpeg.Width<Jpeg2Width or Jpeg.Height<Jpeg2Height*2 then exit function '图片比水印图片小，则不加水印
select case SiteConfig("WatermarkWidthPosition")
case "left"
PositionWidth=10
case "center"
PositionWidth=(Jpeg.Width - Jpeg2Width) / 2
case "right"
PositionWidth= Jpeg.Width - Jpeg2Width - 10
end select
select case SiteConfig("WatermarkHeightPosition")
case "top"
PositionHeight=10
case "center"
PositionHeight=(Jpeg.Height - Jpeg2Height) / 2
case "bottom"
PositionHeight= Jpeg.Height - Jpeg2Height - 10
end select
Jpeg.Canvas.DrawImage PositionWidth, PositionHeight, Jpeg2, 1, &HFFFFFF '透明度, 透明颜色
end if
End Function
北京澳环翻译中心 http://www.360edu.org.cn 北京澳环教育博客提供：http://www.360edu.org.cn/Blog/