Styling/alignment issue during pdf generation

Kannanravindran

Hello,

We are generating mass pdfs from templates created using handlebars. The pdf is causing styling issues at random places and random pdf files. I have attached a sample image which explains the issue.

Styling issue

Expected behaviour

findings:

The alignment issue does not occur HTML format. it occurs only during conversion of HTML to PDF
When generating mass pdfs (~500), this error occurs randomly and to a sizable amount of pdfs
This occurs only inside tables
Regenerating pdfs reproduces the same error
Running JsReport server on AWS and localhost results in reduction in occurrence of error / same issue at a different place in the pdf

jan_blaha

Hi,

do you use a third-party library for rendering that "bar chart"?
Maybe it uses some kind of animation and you need to wait for it to finish before printing.
Please see the chrome pdf printing triggers
https://jsreport.net/learn/chrome-pdf#printing-triggers

Kannanravindran

Hey @jan_blaha,

Thanks for responding. I tried setting the timeout for async tasks to complete as mentioned in the link you posted.
Unfortunately, that didn't resolve the issue.
This specific issue doesn't occur when we try to generate by running the server locally. Occurs only when we using AWS instance
We are running the JsReport server on Elastic Beanstalk - Node.js 12 running on 64bit Amazon Linux 2/5.2.4

jan_blaha

This is very hard to troubleshoot and it will need some work to isolate the problem.
Could you try to extract the minimal part of the code from your template to a new one?
Write some kind of script to render multiple reports from this template and see if it has still the error behavior.
And if you get to this, share the template with us so we can take a look?
You can email it to me if it is confidential.