Skip to main content

How can I render a div that has its visibility:'hidden'? in PDFjs

So I'm implementing a feature in my react web app, and in one of the Views, I have a button that takes 2 HTMLElements and display them in 2 pages in a PDF, but I would like one of them to stay hidden. The problem is that while hidden, PDFjs does not render it. Same happens when trying to set it to position:'absolute' and smth like '-999999px'.

This is the piece of code responsible for capturing and saving:

const downloadIt = () => {
    const blackboard = document.getElementById('blackboard') as HTMLElement;
    const descriptionList = document.getElementById('elementDescriptions') as HTMLElement;
  
    const width = blackboard.offsetWidth;
    const height = blackboard.offsetHeight;
    const aspectRatio = width / height;
  
    html2canvas(blackboard).then((canvas) => {
      const pdf = new jsPDF();
      const imageData = canvas.toDataURL('image/png');
      const pdfHeight = pdf.internal.pageSize.getWidth() * (1 / aspectRatio);
  
      pdf.text(comp.title, 8, 8);
      pdf.addImage(imageData, 'PNG', 15, 15, pdf.internal.pageSize.getWidth() - 20, pdfHeight);
  
      pdf.addPage();
  
      // Add the descriptionList to the PDF
      if (descriptionList) {
        html2canvas(descriptionList).then((descCanvas) => {
          const descData = descCanvas.toDataURL('image/png');
          const descAspectRatio = descCanvas.width / descCanvas.height;
          const descWidth = pdf.internal.pageSize.getWidth() - 190; // Adjust the margins as needed
          const descHeight = descWidth * (1 / descAspectRatio);
  
          pdf.addImage(descData, 'PNG', 15, 15, descWidth, descHeight);
  
          pdf.save(`${comp.title}.pdf`);
        });
      } else {
        pdf.save(`${comp.title}.pdf`);
      }
    });
  };

The one I'd like to hide is the one called descriptionList, just a simple div with some Cards inside.

I've tried moving it out of the way, but it keeps giving me an error of corrupt PNG file passed to PDFjs

Via Active questions tagged javascript - Stack Overflow https://ift.tt/1MXH57F
Labels:

Comments

Post a Comment

Popular posts from this blog

Where and how is this Laravel kernel constructor called? [closed]

Where and how is this Laravel kernel constructor called? public fucntion __construct(Application $app, $Router $roouter) { } I have read the documentation and some online tutorial but I can find any clear explanation. I am learning Laravel and I am wondering where does this kernel constructor receives its arguments from. "POSTMOTERM" CLARIFICATION: Here is more clarity.I have checked the boostrap/app.php and it is only used for boostrapping the interfaces into the container class. What is not clear to me is where and how the Kernel class is instatiated and the arguments passed to the object calling the constructor.Something similar to; obj = new kernel(arg1,arg2) or, is the framework using some magic functions somewhere? Special gratitude to those who burn their eyeballs and brain cells on this trivia before it goes into a full blown menopause alias "MARKED AS DUPLICATE". To some of the itchy-finger keyboard warriors, a.k.a The mods,because I believe in th...
Post a Comment
Read more

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more