Importing PDFJS breaks TS application

问题

So I'm creating an Angular 2 - typescript application and I want to be able to explore PDFs using Mozilla's PDFJS library. I have installed the depenedencies like so:

npm install pdfjs-dist @types/pdfjs-dist --save

Then in my app.modules.ts I attempt to import it like so:

import { PDFJS } from "pdfjs-dist";

And I'm met with the following error when trying to run tsc I get the following output:

src-ng/csm/app/app.module.ts(27,10): error TS2305: Module '"pdfjs-dist"' has no exported member 'PDFJS'.

I'm at a loss because it appears that the pdfjs-dist typing appears to be in order. Is there something else I should include?

回答1:

You have to import it like this:

import * as PDFJS from "pdfjs-dist";

// or individual members

import { getDocument } from "pdfjs-dist";

This is due to the way TypeScript handles interop between the old module specs (CommonJS, UMD, AMD) and ES6 modules.

来源：https://stackoverflow.com/questions/45467843/importing-pdfjs-breaks-ts-application