FAQ Database Discussion Community


Html Canvas add Text Or Image in Rendered Image

html5-canvas,watermark
i am trying to add add text (water mark) in canvas generated image here is my code. html2canvas($("#frame"), { onrendered: function (canvas) { $("#outputImage").html(canvas); } what i should add in this code to add watermark mark in generated image ...

Watermarking centered instead of top right

php,image-processing,gd,watermark
I'm using a php function that creates a watermarkon the top right of an image. Here's the code : <?php function watermarking($source, $watermark, $save = NULL, $width = null, $height = null) { $watermark = @imagecreatefrompng($watermark) or exit("Impossible d'ouvrir le fichier (watermark)."); imageAlphaBlending($watermark, false); imageSaveAlpha($watermark, true); $imageString = @file_get_contents($source) or...

CFPDF with PNG: transparency is black. With PDF it's white

pdf,coldfusion,thumbnails,watermark,cfpdf
I am trying to add a watermark to a PDF with a PNG file that has a transparent background. Every time I create the watermark it comes out as black background. When it comes to using a PDF as the watermark I get a white background of the watermark. Also,...

Is it possible to add a watermark on to a JPG without re-compression?

php,image-processing,jpeg,watermark,lossless-compression
It seems to be logical that it should be impossible to add a watermark to an JPG image without re-compressing the image when saving it as an JPG. Can someone confirm this? The question is generally related to PHP, but I don't think the server language makes a difference to...

Add watermark below image but within print area in C#

c#,winforms,image-processing,printing,watermark
I am trying to insert a text watermark underneath a TIFF image in my windows form and would definitely appreciate anyone's help. I have a print button that retrieves the image, scales it down, then based on my margins, places the image accordingly to print. I'd like to add an...

Is there a way to add watermark to all videos in Google Drive’s folder?

google-apps-script,ffmpeg,google-drive-sdk,watermark,video-watermarking
Is there a way to add watermark to all videos in Google Drive’s folder? I found similar service, but it works only with pictures, pdfs - Wappwolf Maybe, it's possible to do by Google Apps Script or some other services (like ffmpeg)?...

PHP Imagick compositeImage set position

php,image-processing,imagemagick,imagick,watermark
I use the Imagick library for Image processing. I'm using this function: https://php.net/manual/ro/imagick.compositeimage.php How can I place the second image above the first image in the left corner for example? I'm using this function to add a watermark above all images. But the watermark is centered on all images. I...

ffmpeg watermark overlay turns portrait to landscape

ffmpeg,watermark,portrait
I have an issue with portrait videos : when I add a watermark on it like this ffmpeg -i bb.mov -i watermark.png -filter_complex overlay aa.mp4 the aa.mp4 result video is in landscape mode ... Is there any solution to watermark my portrait video input to get a portrait video output...

How to delete delete app inventor watermark

android,watermark
I created some demo apps with M.I.T android app inventor and I was very happy with them. This was until I notices when I pressed the button on the left hand side of my device (I believe it is the settings button) I got a screen with 2 buttons, one...

How to add watermark to TIFF image using itext 2.1.7 in java

java,itext,watermark
I want to print out a tiff image with watermark.So, firstly i convert tiff image to pdf and add watermark to generated pdf.But the watermark doesn't appear in final pdf. Is there any advice to print out a tiff image with watermark. Any help will be appreciated. This is my...

Watermark to appear on canvas after submit

javascript,html5,canvas,submit,watermark
I have a HTML canvas, you choose a color and a size for the circle and when onclick, the circle appears. Now I want a watermark with the text "Hello" to be seen before you paint the circles and then disappear when you start drawing and the canvas goes back...

IOError on file deletion

c#,file,itextsharp,watermark
The following code is used for watermarking pdf : using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using iTextSharp.text; using iTextSharp.text.pdf; namespace WaterDocument { class Program { static void Main(string[] args) { string FileLocation = "C:\\Users\\Desktop\\Hello.pdf"; // string watermarkedFile = "Watermarked.pdf"; // Creating watermark on a separate layer...

How to implement watermarking of images in YII framework?

image,yii,watermark
I want to watermark images at the time of uploading in yii. Please anyone help me to do that....

Why pixels color are different before and after encoding? , How to set the same?

video,ffmpeg,watermark
I want to change some pixels of some frames, I do this steps: 1 - Extract frames from FLV video to PNG 2 - Change frame pixels color ,For example I set color of Pixel(0,0) to ARGB (0,0,0,0) 3 - Encode frames to a video by below code: -i Frame%04d.png...