react-pdf-js-credentials

react-pdf-js

---

react-pdf-js provides a component for rendering PDF documents using PDF.js. Written for React 15/16 and ES2015 using the Airbnb style guide.

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Usage

Install with npm install react-pdf-js

Use in your app (showing some basic pagination as well):

import React from 'react';
import PDF from 'react-pdf-js';
 
class MyPdfViewer extends React.Component {
  state = {};
 
  onDocumentComplete = (pages) => {
    this.setState({ page: 1, pages });
  }
 
  onPageComplete = (page) => {
    this.setState({ page });
  }
 
  handlePrevious = () => {
    this.setState({ page: this.state.page - 1 });
  }
 
  handleNext = () => {
    this.setState({ page: this.state.page + 1 });
  }
 
  renderPagination = (page, pages) => {
    let previousButton = <li className="previous" onClick={this.handlePrevious}><a href="#"><i className="fa fa-arrow-left"></i> Previous</a></li>;
    if (page === 1) {
      previousButton = <li className="previous disabled"><a href="#"><i className="fa fa-arrow-left"></i> Previous</a></li>;
    }
    let nextButton = <li className="next" onClick={this.handleNext}><a href="#">Next <i className="fa fa-arrow-right"></i></a></li>;
    if (page === pages) {
      nextButton = <li className="next disabled"><a href="#">Next <i className="fa fa-arrow-right"></i></a></li>;
    }
    return (
      <nav>
        <ul className="pager">
          {previousButton}
          {nextButton}
        </ul>
      </nav>
      );
  }
 
  render() {
    let pagination = null;
    if (this.state.pages) {
      pagination = this.renderPagination(this.state.page, this.state.pages);
    }
    return (
      <div>
        <PDF
          file="somefile.pdf"
          onDocumentComplete={this.onDocumentComplete}
          onPageComplete={this.onPageComplete}
          page={this.state.page}
        />
        {pagination}
      </div>
    )
  }
}
 
module.exports = MyPdfViewer;

Scaling

The PDF can be scaled in a couple of different ways.

Stretch to fill width/height

Use the prop fillWidth to make the PDF stretch to the width of the parent element (generally speaking, this will be the enclosing <div>), or use fillHeight to do the same for the height of the PDF. The PDF will be scaled proportionately.

Both fillWidth and fillHeight default to false.

Note: fillWidth has precedence over fillHeight. So if you use both, the PDF will stretch to fill the width.

Example:

<div className="parentDivWhoseWidthAndHeightAreUsedToStretchThePdf">
  <PDF
    file="somefile.pdf"
    fillWidth
    fillHeight // this will be ignored because fillWidth is also passed
  />
</div>

Set scale directly

You can also set the scale manually by passing the scale prop. A scale between 0 and 1 shrinks the PDF, and a scale greater than 1 enlarges it.

scale defaults to 1.

Note: the value of scale will be ignored if you also use fillWidth or fillHeight.

Example:

<div>
  <PDF
    file="somefile.pdf"
    scale={1.5}
  />
</div>

Credit

This project is a fork of react-pdfjs which itself was a port of react-pdf, so thank you to the original authours.