HTML to PDF Converter

A simple yet powerful utility tool for converting web views into print-ready PDF documents. Fully runs on the client-side (Client-Side Rendering) to guarantee user data privacy.

Why Client-Side?

Many HTML-to-PDF converters use backend APIs (like Puppeteer) which are:

1. Expensive on server resources.
2. Slow due to required data upload/download.
3. Less Private as content is sent to another server.

This solution uses a combination of html2canvas (to capture the DOM visual as an image) and jsPDF (to compile that image into PDF document format).

Implementation Challenges

One of the biggest issues is "Page Breaks". Because html2canvas takes a long "screenshot" of the entire page, forcibly cutting it often slices text or images right down the middle.

Solution: I implemented a smart cutting algorithm that detects container elements. Before cutting, the script checks if the cut line intersects with important elements. If it does, it shifts the content to the next page.

// Page break logic pseudo-code
if (elementBottom > pageHeight) {
  pdf.addPage();
  currentHeight = 0; // Reset cursor
  pdf.addImage(element, ...);
}