[SOLVED] Generate PDF with pie chart -iText7

Generate PDF with pie chart -iText7

The obvious primary reason for using iText being , our company already have a license.

Requirement: Generate a report that includes pie chart. Our UX gave us a HTML, And I'm using html2pdf plugin to generate pdf. We're using tlx-chart for its simplest code.

Issue: PDF doesn't render/show piechart. No errors seen in logs. HTML is being created perfectly (Althought iText conversion seems to be not so good), and When I load it with chromedriver as provided in KB article below, it renders overlapped 2 piecharts instead of 1.

So, This knowledgebase article from iText doesn't help.

Infact, I've thought I cannot keep on updating chromedriver,selenium on prod server.
I've to provide a loosely coupled (OS>PDF>PIE) to generate PDF.

Code Snippet:

HtmlConverter.convertToPdf(reportHtml, pdfWriter, new ConverterProperties());

"<tlx-chart id=\"mychart\" chart-type=\"PieChart\" chart-editable=\"true\" chart-columns=\"${['Element','Percentage']}\" chart-data=\"${${pieData}}\" </tlx-chart>"

Please Help!

Solution

So the issue is to embed piechart in PDF since JavaScript tags were not being rendered by iText library. And I resolved this in my case using jFreeChart.

Generate an image using jFreechart and embed that image in HTML
iText perfectly renders this as per HTML CSS
For detailed explanation and code snippet on this please visit here
An alternative way is also documented here