html to PDF not rendering properly while using jsPDF

Question

I am trying to develop a plugin to export markdown file to PDF.

Here is a sample markdown content:

# What is Obsidian ?
Obsidian is a **markdown** editor.

I am using marked library to convert markdown => html string after which using html function of JSPDF library to convert to PDF and save

The code snippet is as follows:

const pdf = new jsPDF()

//converting markDown text to html
const htmlContent = await marked(markedDownContent);

pdf.html(htmlContent, {
callback: (doc) => {
doc.save("output.pdf");
},
x: 0,
y: 0,
margin: 10
});

However, the text generated in PDF is poorly formatted as seen below:

I need help in fixing the styling of the text generated in the PDF document.

Edit As mentioned in the comments, the html generated is as follows:

<h1>What is Obsidian ?</h1>
<p>Obsidian is a <strong>markdown</strong> editor.</p>