html-pdf：如何确保图像不跨越分页符

Question

I am using html-pdf to convert HTML to PDF. To add Graphs, I am using Chart.js .

When generate the PDF, Graph break into two pages as shown in below image.

This is how I add the Graph.

<canvas id="bar-chart" class="canvas-styles margin-top-20" 
 style="display: block; page-break-before: auto; page-break-after: auto; page-break-inside: avoid;">
</canvas>

How could I solve this?

Answer 1

Add into your css an @print section for your div:

@media print {
     div#canvasWrap { width: 2.4cm; }
  }

And add a wrapping div around your canvas:

<div id="canvasWrap">
    <canvas id="bar-chart" class="canvas-styles"></canvas>
</div>

Add any styles you need to the wrapper ...