# PDF.js

PDF.js is a Portable Document Format (PDF) library that is built with HTML5.
Our goal is to create a general-purpose, web standards-based platform for
parsing and rendering PDFs.

This is a pre-built version of the PDF.js source code. It is automatically
generated by the build scripts.

For usage with older browsers/environments, without support for modern features
such as e.g. `async`/`await`, `Promise`, and `ReadableStream`,
please refer to the `es5` folder.

See https://github.com/mozilla/pdf.js for learning and contributing.


针对pdf.worker.js内部代码进行了注释处理
```javascript
// 取消签章不显示
// if (data.fieldType === "Sig") {
//   data.fieldValue = null;
//   this.setFlags(_util.AnnotationFlag.HIDDEN);
// }
```