add watermark to pdf

Upload a picture to add a watermark???

CopyCode The Code is as follows: using system; Using system. Collections. Generic; Using system. text; Using system. drawing; Using system. IO; Using system. Drawing. imaging; Using system. Web; Using system. Drawing. drawing2d; Using system. reflection; Namespace Chen { Public class warterpic { /// /// Add a watermark to the image /// /// /// /// Public void markwater (string filepath, string waterfile) {

= cgbitmapcontextcreateimage (context); Cgcontextsetallowsantialiasing (context, YES); UIImage *result = [UIImage imagewithcgimage:imageref]; Cgimagerelease (IMAGEREF); Cgcontextrelease (context); Cgcolorspacerelease (ColorSpace); return result;} @endinvocation ExampleUIImage *img = [UIImage imagenamed:@ "Image.jpg"]; image.image = [img addText:text.text xpos:80 ypos:300 fontname:@ "Georgia-bold"

Calls can1 functionAddwatermarker (str) {2 3 4 varcan = document.createelement (' Canvas ');5 varBODY =document.body;6 7 Body.appendchild (CAN);8 9can.width=400;Tencan.height=200; OneCan.style.display= ' None '; A - - varcans = Can.getcontext (' 2d '); theCans.rotate ( -20*math.pi/180); -Cans.font = "16px Microsoft Jhenghei"; -Cans.fillstyle = "Rgba (17, 17, 17, 0.50)"; -Cans.textalign = ' Left '; +Cans.textbaseline = ' Middle '; -Cans.filltext (STR,CAN.WIDTH/3,CAN.HEIGHT/2); + Ab

: */* According to the parameters $width and $height, the proportional height and width are converted . : if($width ($width _orig : { : $width = ($height/$height _orig) * $width _orig; : } : Else : { : $height = ($width/$width _orig) * $height _orig; : } 28:* / * Create a canvas with a new size * / : $image _p = Imagecreatetruecolor ($width, $height); 31:* / * Get Image resources * / : $image = imagecreatefrompng ($f

Use Sample import uikit class viewcontroller: UIVIEWC ontroller { @IBOutlet weak var imageview: Uiimageview! nbsp; override func viewdidload () { super. Viewdidload () //Add watermark to Picture imageview.image = uiimage (named: "BG")? watermarkedimage (UIImage (named: "Logo7")!,corner:. TopLeft, margin : Cgpoint (x:20, y:20), alpha:1) } ov

I have been working on adding watermarks to PDF documents for a long time. Make a record as follows: The itextsharp component will be used first. You can download it from the official website, and I will add it in this article. Add reference to the Code as follows: using System;using System.Collections.Generic;using System.Linq;using System.Text;using iTextSharp.

= 0; i { if (fe[i). ToLower () = = Fileextends) { Status = TRUE; Break } } return status; } #endregion #region Save a file Save File public static string Photosave (String Fpath,fileupload myfileupload) { string s = ""; String fileextends = ""; string fileName = Myfileupload.filename; if (FileName!= "") { Get file suffix Fileextends = EC. Uploadobj.getfileextends (FileName); if (! EC. Uploadobj.checkfileextends (Fileextends)) { EC. Messageobject.showpre ("Upload file ty

spire.pdf.annotations;using spire.pdf.annotations.appearance;using spire.pdf.graphics;namespace addanimagestamptoapdf_file{Public partial Class Form1:form {public Form1 () {InitializeComponent (); } private void Button1_Click (object sender, EventArgs e) {pdfdocument doc = new pdfdocument (); Doc. LoadFromFile (@ "E:\Visual studio\sample\template7\sample.pdf"); Pdfpagebase page = doc. Pages[0]; Pdfrubberstampannotation Lostamp = new Pdfrubberstampannotation (New Re

Let's look at the effect chart first: The main code is as follows: Package sea; Import Net.coobird.thumbnailator.Thumbnails; Import net.coobird.thumbnailator.geometry.Positions; Import Javax.imageio.ImageIO; Import Java.awt.image.BufferedImage; Import Java.io.File; Import java.io.IOException; Import java.util.ArrayList; Import java.util.List; /** * User:Greta.Wang * date:12-11-3 * Read Nine pictures from file system, and compose them to one, in the process, Each of the picture would be add

location of the stencil display}//Ga Shuiyin public void Addwatermark (PDFWriter writer) {//watermark picture image; try {image = Image.getinstance ("./web/images/001.jpg"); Pdfcontentbyte content = Writer.getdirectcontentunder (); Content.begintext (); Start writing watermark for (int k=0;k　　Import Com.itextpdf.text.font;import com.itextpdf.tool.xml.xmlworkerfontprovider;/

This article mainly introduces the ASP.net how to add watermark text to the picture to achieve, the need for friends can refer to the The first step is to add a generic handler (Handler), in this case ImageHandler nbsp; code as follows: using System; Using System.Data; Using System.Configuration; Using System.Web; Using System.Web.Security; Using System.Web.UI;

This article mainly introduces the PHP use of the GD library for the page to add watermark to the specific implementation, the need for friends can refer to the following nbsp; Code as follows: ;nbsp; nbsp;

); : Imagedestroy ($newy); : } 36: Notoginseng:/** :* Picture is rotated along the x-axis, for example in PNG formatIn :* @param the URL of a string $filename pictureMax :* /In :function turn_x ($filename) : {* / * Create a picture resource * / : $backx = imagecreatefrompng ($filename); 45:* / * Get size * /A : $widthx = Imagesx ($backx); : $heightx = Imagesy ($backx); 49:* / * Create a new picture resource, save the flipped picture * / Wuy

/** * * @param filePath Original image Path * @param content Add watermark text/public static Boolean Photoaddwater (String FilePath, String content) {//Get the original icon ImageIcon imageicon=new ImageIcon (FilePath); Create Image Object Image Image=imageicon.getimage (); int width=image.getwidth (NULL); int height=image.getheight (NULL); Create picture container BufferedImage bufferedima

3, PHP cropping the image Effect 4, PHP for the image to add a watermark Effect

The AspJpeg component implements the calling method of adding a watermark function : The following is a reference fragment:function Printwater (Waterpath,upfilepath)Dim Logobox,logopath,ogvboxLogopath = Server.MapPath (Waterpath)Set Logobox = Server.CreateObject ("Persits.jpeg")Logobox.open LogopathLogobox.width = 108Logobox.height = 65Set Ogvbox = Server.CreateObject ("Persits.jpeg")Ogvbox. Open Trim (Server.MapPath (Upfilepath))Ogvbox

' Specify the picture you want to add the watermark text toDim img as Image = Image.FromFile (Server.MapPath ("~/upload/1.jpg"))' Create a Bitmap object for the drawing operation (you cannot directly manipulate a format other than BMP, possibly)Dim Bitmap as New bitmap (343, 498)' The font to draw the textDim F as New Font ("Microsoft Ya-Black", fontstyle.underline)' Text contentDim str as String = Textbox5

The project is changing, the demand is changing, the invariable is always the programmer tapping the keyboard ... After the PDF is generated, it is sometimes necessary to add some other content to the PDF, such as text, pictures .... After several failed attempts, I finally got the right way to write code. Summary of this record to facilitate the next status q

I. Problem description: After some PDF files are opened, you cannot add comments, notes, bookmarks, etc. A line of text in the toolbar is "you are viewing this document in PDF/A mode ". PDF/A is a type of PDF format, It is designed to save files for a long time. Basically,