getStructTree not available on es5 build?

[A-Babin]

Hello!

I'm trying to parse some PDFs in a Node application. In particular, I'm targeting some tables.

I see in the DOM of the web viewer rendering one of my documents that the structTree provides some really useful structural information that would make my life a lot easier, but the Page.getStructTree method is not available on pdfjs-dist es5 build that must be used in Node.js.

Is there any other way I can get the struct tree information in Node?

Thanks!

[timvandermeij]

The last pre-release was is from April 5 and the struct tree logic was merged on April 9 (see #13171) so it's indeed not released. You'll have to wait until the next release, which is likely to happen in the coming week.

[A-Babin]

Glad to hear that, thank you!

[barsdeveloper]

I am trying to inspect what type of information getStructTree contains for a similar purpose. Unfortunately I'm getting null from this method. Any idea why it could be like that?

I'm using rollup and commonjs to use this library

import pdfjs from "pdfjs-dist"
import pdfjsWorker from "pdfjs-dist/build/pdf.worker.entry"

pdfjs.GlobalWorkerOptions.workerSrc = pdfjsWorker

let pdf = await pdfjs.getDocument("test.pdf").promise
let page = await pdf.getPage(3)
let tree = await page.getStructTree()

tree is null

[mootari]

@barsdeveloper Structure trees aren't available in every PDF. You can find more details as well as pointers to test cases (like fips-197.pdf) in issue #6269