string filename = DateTime.Now.ToString("yyyyMMddHHmmss").ToString() + ".pdf";
float w = PageSize.A4.Width;
float h = PageSize.A4.Height;
Rectangle rect = new Rectangle(0, 0, w, h);
Document document = new Document(rect);
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(Server.MapPath(filename), FileMode.Create));
//Sets the transparency blending colorspace to RGB. The default blending colorspace is CMYK and will result in faded colors in the screen and in printing. Calling this method will return the RGB colors to what is expected. The RGB blending will be applied to all subsequent pages until other value is set. Note that this is a generic solution that may not work in all cases.
//Parameters:
//rgbTransparencyBlending - true to set the transparency blending colorspace to RGB, false to use the default blending colorspace
//設(shè)置顏色空間,默認是CMKY顏色空間,如果設(shè)置為true則為RGB顏色空間
writer.RgbTransparencyBlending = true;
document.Open();
PdfContentByte content = writer.DirectContent;
PdfTemplate template = content.CreateTemplate(rect.Width, rect.Height);
PdfGState state = null;
template.SaveState();
template.SetColorFill(Color.RED);
template.SetColorStroke(Color.GREEN);
template.SetLineWidth(3);
state = new PdfGState();
state.FillOpacity = 0.5f;
state.AlphaIsShape = false;
template.SetGState(state);
template.Rectangle(100, 100, 100, 100);
template.FillStroke();
template.RestoreState();
content.AddTemplate(template, 1, 0, 0, -1, 0, rect.Height);
document.Close();
另外有需要云服務(wù)器可以了解下創(chuàng)新互聯(lián)scvps.cn,海內(nèi)外云服務(wù)器15元起步,三天無理由+7*72小時售后在線,公司持有idc許可證,提供“云服務(wù)器、裸金屬服務(wù)器、高防服務(wù)器、香港服務(wù)器、美國服務(wù)器、虛擬主機、免備案服務(wù)器”等云主機租用服務(wù)以及企業(yè)上云的綜合解決方案,具有“安全穩(wěn)定、簡單易用、服務(wù)可用性高、性價比高”等特點與優(yōu)勢,專為企業(yè)上云打造定制,能夠滿足用戶豐富、多元化的應(yīng)用場景需求。
網(wǎng)頁名稱:itextsharp的顏色空間-創(chuàng)新互聯(lián)
分享路徑:http://muchs.cn/article46/deephg.html
成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián),為您提供網(wǎng)站內(nèi)鏈、品牌網(wǎng)站建設(shè)、虛擬主機、手機網(wǎng)站建設(shè)、微信小程序、面包屑導(dǎo)航
聲明:本網(wǎng)站發(fā)布的內(nèi)容(圖片、視頻和文字)以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主,如果涉及侵權(quán)請盡快告知,我們將會在第一時間刪除。文章觀點不代表本網(wǎng)站立場,如需處理請聯(lián)系客服。電話:028-86922220;郵箱:631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載,或轉(zhuǎn)載時需注明來源: 創(chuàng)新互聯(lián)
猜你還喜歡下面的內(nèi)容