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add image watermark to pdf c#: Using iTextSharp To Watermark/Write Text To Existing PDF's ...add watermark text to pdf using itextsharp c# Adding Image watermark to Pdf while Creating it using C# – reader ...c# open a pdf file, how to search text in pdf using c#, c# get thumbnail of pdf, convert pdf to image c#, extract pdf to excel c#, convert pdf to jpg c# codeproject, merge pdf using c#, how to add header and footer in pdf using itextsharp in c# with example, c# determine number of pages in pdf, c# split pdf into images, itextsharp remove text from pdf c#, how to add image in pdf in c#, c# convert pdf to tiff free library, convert tiff to pdf c# itextsharp, excel to pdf using itextsharp in c# c# add watermark to existing pdf file using itextsharp Windows Add a text watermark on PDF in C# sample in C# for ...
15 Oct 2014 ... This sample shows how to add text watermark on every PDF pages in a document using free Spire. PDF with C# . add watermark to pdf using itextsharp c# How to add a watermark to a PDF file? - Stack Overflow
The fact that the file size increases is a good indication that the watermark is added. The main problem is that you're adding the watermark ... drawing a series of semirandomly positioned circles with various levels of transparency. The more opaque circles tend to be in the center of the alpha mask: private BufferedImage alphaSplash() { Random rand = new Random(); // create a grayscale buffered image BufferedImage img = new BufferedImage(ALPHA_SIZE, ALPHA_SIZE, BufferedImage.TYPE_BYTE_GRAY); Graphics2D g = img.createGraphics(); // draw into it g.setColor(Color.black); // fully transparent g.fillRect(0, 0, ALPHA_SIZE, ALPHA_SIZE); int radius = 3; // circle radius int offset = 8; // offset of boxed circle from top-left of graphic g.setColor(new Color(0.3f, 0.3f, 0.3f)); //near transparent circles boxedCircles(offset, offset, ALPHA_SIZE-(offset*2), radius, 100, g, rand); offset = 12; g.setColor(new Color(0.6f, 0.6f, 0.6f)); // mid-level translucent boxedCircles(offset, offset, ALPHA_SIZE-(offset*2), radius, 80, g, rand); offset = 16; g.setColor(Color.white); // fully opaque circles boxedCircles(offset, offset, ALPHA_SIZE-(offset*2), radius, 50, g, rand); g.dispose(); return img; } // end of alphaSplash() boxedCircles() draws circles whose centers are somewhere within the square defined by boxedCircles() input arguments: private void boxedCircles(int x, int y, int len, int radius, int numCircles, Graphics2D g, Random rand) /* Generate numCircles circles whose centers are within the square whose top-left is (x,y), with sides of len. A circle has a radius equal to the radius value. */ { int xc, yc; for (int i=0; i < numCircles; i++) { xc = x + (int)(rand.nextDouble()*len) - radius; yc = y + (int)(rand.nextDouble()*len) - radius; g.fillOval(xc, yc, radius*2, radius*2); } } Figure 6-19 shows some splash shapes drawn against a plain white floor viewed from above. Each shape has a different irregular border. add watermark text to pdf using itextsharp c#: watermark text in all the pdf pages of existing pdf - C# Corner add watermark to pdf c# How to add watermark to pdf document ( c# sample) - Apitron
Watermark is usually a semitransparent drawing added on top of the page content which can be created using various ways. This type of marking your ... add watermark text to pdf using itextsharp c# Add a Diagonal Watermark to PDF in C# - Tallcomponents
29 Aug 2011 ... This code sample shows how to add a diagonal watermark to an existing PDF in C# . pdf - add - watermark .PNG Copy static void Main(string[] ... 7. Add the following styles at the end BalloonShop.css: .ReviewHead { font-weight: bold; } .ReviewTable { background: #ccddff; border-bottom: #fff solid 3px; display: block; padding: 5px; width: 100%; } 8. Drag ProductReviews.ascx from Solution Explorer to the bottom of the placeholder in Product.aspx. 9. Load BalloonShop in your browser and click a product to view its product details page. If you re not logged in and the product has no reviews, you ll see the output shown in Figure 21-2. A sample output for a product that has one review was presented in Figure 21-1. create thumbnail from pdf c#: c# - Create PDF preview - Code Review Stack Exchange add watermark image to pdf using itextsharp c# How to add watermark image or text in pdf uisng itextsharp at the ...
Dear Sir, How to create watermark image at the time of creation new pf pdf document using itextsharp dll(verison 4.1.6) Kindly help me Regards ... c# add watermark to existing pdf file using itextsharp How To Add Watermark On PDF Files - C# Corner
23 Sep 2015 ... Step 2: Get the first page of the PDF . Step 3: Load the image from file and set it as the PDF background. Step 4: Save the document to file. Figure 1: Watermark . Part 2: Add Text Watermark . Step 1: Create a new instance of PDF document and load the document from file. Step 2: Get the first page of the PDF . // Detach event handler from previous control. if ((controlToValidate != null) && (!DesignMode)) { controlToValidate.Validating -= new CancelEventHandler(ControlToValidate_Validating); } controlToValidate = value; // Hook up the control's Validating event. if ((controlToValidate != null) && (!DesignMode)) { controlToValidate.Validating += new CancelEventHandler(ControlToValidate_Validating); } } } When the Validating event fires, the BaseValidator simply calls the public Validate() method, and optionally stops the focus from changing. // Validate the control when the Validating event fires. private void ControlToValidate_Validating(object sender, CancelEventArgs e) { Validate(); // Cancel the focus change if the data is invalid, // and this is the configured behavior. if (!isValid && cancelFocus) e.Cancel = true; } In turn, the Validate() method calls the abstract EvaluateIsValid() method, which each validator overrides with its custom validation code. Then, depending on the success or failure of validation, the error icon is updated. // This is a public method so that validation can be triggered // manually if you want, not just in response to the Validating event. public bool Validate() { // Validate the control (using whatever functionality // is provided in the derived class). isValid = EvaluateIsValid(); if (isValid) { // Clear the error message. errorProvider.SetError(controlToValidate, ""); } add watermark image to pdf using itextsharp c# watermark text in all the pdf pages of existing pdf - C# Corner
how to add watermark ( text or image) in existing pdf in c# .I want the ... Add + watermark +to+ pdf +file+created+at+run+time+ using + itextsharp . pdf watermark c# How to add watermark to pdf document ( c# sample) - Apitron
See the C# code snippet below that shows how to add image watermark : ... This type of watermark assumes basic knowledge of PDF drawing system. Using this ... else { // Display the error message. errorProvider.SetError(controlToValidate, errorMessage); } return isValid; } // This is the method where the derived classes will // execute their validation logic. protected abstract bool EvaluateIsValid(); All in all, this gives you a solid framework for building custom validation controls, as demonstrated in the next section. Figure 6-19. Splash shapes on a white surface There s no absolute requirement that the alpha mask has to be generated at runtime. It s quite possible to load a grayscale image from a file, as in this example: // in getAlphaTexture() alphaIC.set( loadAlpha("alpha.gif") ); loadAlpha() is private BufferedImage loadAlpha(String fnm) { try { return ImageIO.read( new File("images/" + fnm)); } catch (IOException e) { System.out.println("Could not load alpha mask: images/" + fnm); return null; } } The file must use 8-bit grayscales, and be ALPHA_SIZE*ALPHA_SIZE large. The ProductReviews.ascx control is made up of three important controls: A DataList control that displays the existing product reviews. A Panel control that contains the controls necessary to create a new customer review. A LoginView control that displays the following message to unauthenticated users: Please log in to write your own review. The code that makes things work is pretty straightforward and reuses the concepts you ve already met earlier in this book. Note It s worth pointing out that this design has one limitation if a control is already valid when you Several textured, illuminated balls are randomly placed on the floor and then meander about aimlessly. They rotate slightly as they move and can t travel beyond the edges of the floor. When a ball encounters an edge, it turns away from it. Figure 6-20 shows a close-up of some of the balls. pdf watermark c# set WaterMark Text in PDF using itextsharp in C# ~ Asp .Net ...
7 Nov 2015 ... In this example we can explain that How can we create a PDF file with watermark text as a Background of the pdf using itextsharp dll in asp.net ... add watermark text to pdf using itextsharp c# Display watermark image in PDF using iTextsharp in ASP.Net, C# and ...
Image jpg = iTextSharp .text. Image .GetInstance(imageFilePath); jpg. ... Add Water mark image to PDF using iTextsharp , C# and VB.Net in ASP. tesseract ocr pdf to text c#: OCR using Tesseract in C# - C# Corner
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