html2canvas | Screenshots with JavaScript | Image Editing library

 by   niklasvh TypeScript Version: 1.4.1 License: MIT

kandi X-RAY | html2canvas Summary

kandi X-RAY | html2canvas Summary

html2canvas is a TypeScript library typically used in Media, Image Editing, jQuery applications. html2canvas has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Screenshots with JavaScript

            kandi-support Support

              html2canvas has a medium active ecosystem.
              It has 28315 star(s) with 4651 fork(s). There are 512 watchers for this library.
              It had no major release in the last 12 months.
              There are 848 open issues and 1642 have been closed. On average issues are closed in 308 days. There are 61 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of html2canvas is 1.4.1

            kandi-Quality Quality

              html2canvas has 0 bugs and 0 code smells.

            kandi-Security Security

              html2canvas has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              html2canvas code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              html2canvas is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              html2canvas releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.
              It has 5575 lines of code, 0 functions and 267 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of html2canvas
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            html2canvas Key Features

            No Key Features are available at this moment for html2canvas.

            html2canvas Examples and Code Snippets

            downloading a pdf with data fetched from api in react-admin dashboard
            Lines of Code : 44dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import React, {Component, PropTypes} from 'react';
            // download html2canvas and jsPDF and save the files in app/ext, or somewhere else
            // the built versions are directly consumable
            // import {html2canvas, jsPDF} from 'app/ext';
            export de
            Download a react component using jsPdf and html2canvas
            Lines of Code : 40dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import React, {Component, PropTypes} from 'react';
            import html2canvas from 'html2canvas';
            import jsPDF from 'jspdf';
            import Pie from './Pie.js';
            class Qu extends Component {
              constructor(props) {
            Generating a PDF file from React Components
            Lines of Code : 43dot img3License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import React, {Component, PropTypes} from 'react';
            // download html2canvas and jsPDF and save the files in app/ext, or somewhere else
            // the built versions are directly consumable
            // import {html2canvas, jsPDF} from 'app/ext';
            How to create a pdf file with graphs/chart using Angular2?
            Lines of Code : 16dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import * as jsPDF from 'jspdf';
            import html2canvas from 'html2canvas';
                   // printDiv is the html element which has to be converted to PDF
                  html2canvas(document.querySelector("#printDiv")).then(canvas => {
            In angular 7 how can I convert app page to PDF?
            Lines of Code : 17dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            npm i jspdf
            npm i html2canvas
            import * as jsPDF from 'jspdf';
            import h2c from 'html2canvas';
            loadPDF() {
            let doc = new jsPDF('p', 'pt', 'a4');
            h2c(document.getElementById('pagePrintPdf')).then(function (canvas) {
            JSPDF and html2canvas with Angular
            Lines of Code : 56dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            #content {
              outline: 1px solid red;
            "scripts": [
            import jsPDF from 'jspdf';
            import html2c
            Storing html2canvas canvas object to array
            Lines of Code : 30dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import React, { Component } from 'react';
            import html2canvas from 'html2canvas';
            class App extends Component {
              constructor(props) {
                this.state = { canvasArray: [] };
                this.captureRef = React.createRef();
            passing data to html2canvas in angular2
            Lines of Code : 16dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                console.log("outside -> download() " + this.problems.length);//works
                var that = this; // assign this to variable that and use it inside html2Canvas function

            Community Discussions


            How to send pdf generated from screen shot in JavaScript
            Asked 2022-Apr-10 at 12:57

            Objective - Take a screenshot of the page, then make pdf of that and send that pdf to the spring boot backend.

            I have implemented the functionality to take the screenshot and convert it into pdf using html2canvas and pdfmake JavaScript libraries.

            Issue - I don't know how to send the generated pdf to the backend. I got to know about base64 encode but I am still confused.

            Code -



            Answered 2022-Apr-10 at 12:57

            According to the docs of pdfmake you're able to get the generated PDF as a Blob with the getBlob method. The Blob will be a binary representation of your PDF which you can send to your server.

            Blobs need to be wrapped inside a FormData object before they can be sent.

            Edit: Switch to the latest version (1.4.1) of html2canvas. The older version didn't work properly. The latest versions uses Promises which allows us to use async functions and, in my opinion, makes your code more readable.

            The beta version of pdfmake uses Promises instead of a callback function, but the latest stable version (0.2.5) does not. But we can solve this by wrapping the callback with a Promise to still be able to use the async / await syntax.



            Wait for a promise to be resolved before continuing with function
            Asked 2022-Mar-24 at 17:27

            I know this has been asked many times, but the async/promise concept is very obscure to me! I am trying to take a screenshot using html2canvas and once the (or multiple) screenshots are generated, continue with the function and send it through a POST request.

            Here's what I've done so far:



            Answered 2022-Mar-24 at 17:27

            It depends on how your grouping your data but this is a simple example. async functions return a promise so you need to await them too.



            html making div to image
            Asked 2022-Mar-10 at 17:17

            I'm trying to convert div content in to image by this link now I'm abele to convert div to image but problem is it was not download directly it asking 1st take preview after it give download help me to without viewing preview directly download.




            Answered 2022-Mar-10 at 17:17

            Please check this code, download it and run it on the browser. the download will not work directly from StackOverflow



            Created image with use-react-screenshot is incorrectly rendered
            Asked 2022-Mar-01 at 15:05

            I'm using use-react-screenshot to take a screenshot of a specific dom element, but the image gets weird, it looks like it partially renders the dom element

            I'm using the sample code in create-react-app



            Answered 2022-Feb-28 at 07:23

            On github there were a lot of issues related with SVG not downloading properly with html2canvas. I suspect these to be the issues. Solutions / workaround provided by users includes code modifications to the internal code. This is again hard to maintain further along. Also Firefox showed blank image when downloaded.

            My best solution would be to use an alternative library like html-to-image. Within a few minutes everything seems to be working with this. (Even Firefox)



            Use html2canvas to capture a page at a fixed width no matter the screen size
            Asked 2022-Feb-23 at 09:23

            I use html2canvas to save a webpage as an image and i'd like to get the same results on a mobile and a PC. My webpage has a table that renders differently on a smaller screen (via CSS). I would like html2canvas to save the canvas as if the webpage is always on a PC screen. This way the table on the webpage will always look the same.

            I currently have a workaround which temporarily sets the body width and viewport initial-scale to something larger before html2canvas runs, saves the webpage, then reverts back to the previous body width and viewport scale. The code I use is at the bottom of this post.

            It mostly works but has a bad user experience because during the html2canvas operation the webpage will grow larger, pause for a bit (during the save) then revert back. Which doesn't look very good from the users point of view. Also, this doesn't always work for every mobile device.

            Is there a better way to do this? Can I have some sort of off screen html that mirrors my on screen html but will always render as if its on a PC?



            Answered 2022-Feb-23 at 09:23

            Thanks to CBroe I did get it working using an off screen iframe. As follows:



            How to download the full to-do (vue.js)list using JsPdf?
            Asked 2022-Feb-21 at 12:44

            I am a beginner in this field. just try to do a small project using vue.js. I wanted to give an option to users to download their Vue.js to-do list. I have had imported the jspdf library and Html2canvas. This is what I got as an output.but I want my output like this. (this is the output of my code in the local browser.try to find out my mistake here.

            ~my script method()here.



            Answered 2021-Dec-20 at 10:55

            I found the answer to my problem. and it's working fine,I could download the entire to-do list as pdf. but I have no idea wt went wrong on that js code. Just replace this code and give an id name for the part u wanted to get downloaded as pdf.



            Live preview with React, Html2Canvas and JsPDF
            Asked 2022-Feb-03 at 04:30

            I am creating a resume-generating web app using react, html2canvas and jspdf. I want to get a live preview of the pdf when someone submits a form. I spent several hours looking for a solution to it. But bad luck. This site has a great example of what I want [ Here ]. Does anyone have an idea, Link?



            Answered 2022-Jan-03 at 12:52

            From your question I understand that you don't need jspdf for live preview as you just need to display image of the resume created using html2canvas. Check the implementation here

            jspdf is only required when you need to download it as pdf then you can convert the image generated by html2canvas to pdf using jspdf


            To hide the HTML elements and only show the canvas you can try something like this.



            html2canvas bigger size of download image
            Asked 2022-Jan-20 at 20:06

            I've set up html2canvas so I can edit text and then download that as image and that works great, but the size is limited to the width of its container.

            If I set up canvas width and height render becomes that size but it's black. What am I doing wrong?

            Here is the JSfiddle with everything working but if you add width and height (currently commented), rendered pictured will get black.




            Answered 2022-Jan-20 at 20:06

            After creating a new element and setting the width and height attributes, the image is drawn on the canvas using the drawImage() method [1].



            NG_PERSISTENT_BUILD_CACHE=1 ng serve not working
            Asked 2022-Jan-20 at 18:32

            I am trying to use the persistent build cache feature provided by angular but look like its not working for me, I am trying the below command



            Answered 2022-Jan-20 at 18:32

            You seem to be using Windows cmd to run the command, and hence you are getting the error.

            The command:



            How to resolve the error: Document not attached to a Window?
            Asked 2022-Jan-09 at 20:06

            I am using html2canvas to convert the html to png, I am getting the following error:



            Answered 2022-Jan-09 at 20:06

            There is no proper way to do it now. html2canvas relay on window object attached to element. Because html2canvas already allow passing options related to defaultView through options object, the guard which throw error look like a bug because it should check that all necessary options are passed. So it would be better to open an issue there!

            As a workaround if you trust HTML you can try to use hidden iframe but it still should be placed to the document


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install html2canvas

            You can download it from GitHub.


            If you wish to contribute to the project, please send the pull requests to the develop branch. Before submitting any changes, try and test that the changes work with all the support browsers. If some CSS property isn’t supported or is incomplete, please create appropriate tests for it as well before submitting any code changes.
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