I need to display a legal document. Most of the text inside a p tag is normal; but the first word on every paragraph must be bold. Font size, font family and text align work fine; it's just the strong tag that is not working:
<apex:page renderAs="pdf" controller="FiniquitosController" showHeader="false" sidebar="false" standardStylesheets="false" applyBodyTag="false" applyHtmlTag="false">
<head>
<style>
strong {
font-weight: bold;
}
</style>
</head>
<p style="text-align: justify; line-height: normal; font: 10pt Arial Unicode MS;">
<strong>PRIMERO.</strong> Rest of the text
</p>
</apex:page>
"Arial Unicode MS", is the only font with full unicode support in Visual force pdf engine, great for Arabic, Chinese/Japanese/Korean etc. BUT it doesn't have bold variant so all your <b>, <th>, strong etc will print with normal font weight.
If you need a different font / want to experiment - use this as base: https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_output_pdf_supported_fonts.htm
Check out my full answer, maybe the jspdf trick will be an option for you. https://stackoverflow.com/a/60402680/313628