pdf-annotate.js:pdf.js的注释层

# pdf-annotate.js [](https://github.com/Submitty/pdf-annotate.js/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster) [](https://codecov.io/gh/Submitty/pdf-annotate.js) Annotation layer for [PDF.js](https://github.com/mozilla/pdf.js). Combined fork of archived [instructure/pdf-annotate.js](https://github.com/instructure/pdf-annotate.js/) and deleted DynamicEnvironmentSystems/pdf-annotate.js. Under active development for usage within [Submitty](https://github.com/Submitty/Submitty). To report issues for pdf-annotate.js, please file them under the [Submitty/Submitty](https://github.com/Submitty/Submitty) repository. ## Objectives - Provide a low level annotation layer for [PDF.js](https://github.com/mozilla/pdf.js). - Optional high level UI for managing annotations. - Agnostic of backend, just supply your own `StoreAdapter` to fetch/store data. - Prescribe annotation format. ## Example ```js import pdfjsLib from 'pdfjs-dist/build/pdf'; import PDFJSAnnotate from 'pdfjs-annotate'; const { UI } = PDFJSAnnotate; const VIEWER = document.getElementById('viewer'); const RENDER_OPTIONS = { documentId: 'MyPDF.pdf', pdfDocument: null, scale: 1, rotate: 0 }; pdfjsLib.workerSrc = 'pdf.worker.js'; PDFJSAnnotate.setStoreAdapter(PDFJSAnnotate.LocalStoreAdapter); pdfjsLib.getDocument(RENDER_OPTIONS.documentId).promise.then((pdf) => { RENDER_OPTIONS.pdfDocument = pdf; VIEWER.appendChild(UI.createPage(1)); UI.renderPage(1, RENDER_OPTIONS); }); ``` See [/web](https://github.com/Submitty/pdf-annotate.js/tree/master/web) for an example web client for annotating PDFs. ## Documentation [View the docs](https://github.com/Submitty/pdf-annotate.js/tree/master/docs). ## Developing ```bash # clone the repo $ git clone https://github.com/Submitty/pdf-annotate.js.git $ cd pdf-annotate.js # intall dependencies $ npm install # start example server $ npm start $ open http://127.0.0.1:8080 # run tests $ npm test # lint the code $ npm run lint ```