PDF READER LIBRARY

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This repo is a JavaScript-based PDF Viewer that allows for display of PDFs with embedded V3D Content, using Node.js and webpack

The specification for the V3D format is here:

• https://github.com/vectorgraphics/v3d

The Asymptote vector graphics language can generate V3D content and optionally embed it within a PDF file:

• https://asymptote.sourceforge.io/

To display a local v3d-enabled PDF file file.pdf within an HTML file, add to the HTML header (between <HEAD> and </HEAD>):

<script defer src="https://vectorgraphics.github.io/pdfv3dReader/dist/transform.js"></script>
<style>
  html, body { margin: 0; height: 100%; }
  iframe { display: block; width: 100%; height: 100%; border: 0; }
</style>

and add

<iframe src="?pdf=file.pdf"></iframe>

to the HTML body. The bare ?pdf=file.pdf query string refers to the current page, so no filename is needed in the iframe src.

The iframe is sized responsively (it fills the browser window). The actual PDF page dimensions are read from the file automatically by PDF.js, so there is no need to specify a width/height matching the document -- pages render at their native size and scroll within the viewer.

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BUILDING

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To rebuild the dist bundles, run:

npm run build

This runs webpack and automatically patches the Worker_fn in dist/reader.js to use the workerScript blob injected by transform.js (instead of the content-hashed worker file that webpack emits).

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