So you've created a React component and would love to give end users the ability to print out the contents of that component. This package aims to solve that by popping up a print window with CSS styles copied over as well.
npm install --save react-to-print
The component accepts the following props:
| Name | Type | Description |
|---|---|---|
bodyClass? |
string |
One or more class names to pass to the print window, separated by spaces |
content |
function |
A function that returns a component reference value. The content of this reference value is then used for print |
copyStyles? |
boolean |
Copy all <style> and <link type="stylesheet" /> tags from <head> inside the parent window into the print window. (default: true) |
documentTitle? |
string |
Set the title for printing when saving as a file |
fonts? |
{ family: string, source: string }[] |
You may optionally provide a list of fonts which will be loaded into the printing iframe. This is useful if you are using custom fonts |
onAfterPrint? |
function |
Callback function that triggers after the print dialog is closed regardless of if the user selected to print or cancel |
onBeforeGetContent? |
function |
Callback function that triggers before the library gathers the page's content. Either returns void or a Promise. This can be used to change the content on the page before printing |
onBeforePrint? |
function |
Callback function that triggers before print. Either returns void or a Promise. Note: this function is run immediately prior to printing, but after the page's content has been gathered. To modify content before printing, use onBeforeGetContent instead |
onPrintError? |
function |
Callback function (signature: `function(errorLocation: 'onBeforePrint' |
pageStyle? |
string or function |
We set some basic styles to help improve page printing. Use this to override them and provide your own. If given as a function it must return a string |
print? |
function |
If passed, this function will be used instead of window.print to print the content. This function is passed the HTMLIFrameElement which is the iframe used internally to gather content for printing. When finished, this function must return a Promise. Use this to print in non-browser environments such as Electron |
removeAfterPrint? |
boolean |
Remove the print iframe after action. Defaults to false |
suppressErrors? |
boolean |
When passed, prevents console logging of errors |
trigger? |
function |
A function that returns a React Component or Element. Note: under the hood, we inject a custom onClick prop into the returned Component/Element. As such, do not provide an onClick prop to the root node returned by trigger, as it will be overwritten |
nonce? |
string |
Set the nonce attribute for whitelisting script and style -elements for CSP (content security policy) |
If you need extra control over printing and don't want to specify trigger directly, PrintContextConsumer allows you to gain direct access to the handlePrint method which triggers the print action. Requires React ^16.3.0.
For functional components, use the useReactToPrint hook, which accepts an object with the same configuration props as <ReactToPrint /> and returns a handlePrint function which when called will trigger the print action. Requires React ^16.8.0.
react-to-print should be compatible with most major browsers. We also do our best to support IE11.
- Firefox Android (does not support
window.print)
For full examples please see the examples folder.
export class ComponentToPrint extends React.PureComponent {
render() {
return (
<table>
<thead>
<th>column 1</th>
<th>column 2</th>
<th>column 3</th>
</thead>
<tbody>
<tr>
<td>data 1</td>
<td>data 2</td>
<td>data 3</td>
</tr>
</tbody>
</table>
);
}
}import React from 'react';
import ReactToPrint from 'react-to-print';
import { ComponentToPrint } from './ComponentToPrint';
class Example extends React.PureComponent {
render() {
return (
<div>
<ReactToPrint
trigger={() => {
// NOTE: could just as easily return <SomeComponent />. Do NOT pass an `onClick` prop
// to the root node of the returned component as it will be overwritten.
return <a href="#">Print this out!</a>;
}}
content={() => this.componentRef}
/>
<ComponentToPrint ref={el => (this.componentRef = el)} />
</div>
);
}
}import React from 'react';
import ReactToPrint, { PrintContextConsumer } from 'react-to-print';
import { ComponentToPrint } from './ComponentToPrint';
class Example extends React.PureComponent {
render() {
return (
<div>
<ReactToPrint content={() => this.componentRef}>
<PrintContextConsumer>
{({ handlePrint }) => (
<button onClick={handlePrint}>Print this out!</button>
)}
</PrintContextConsumer>
</ReactToPrint>
<ComponentToPrint ref={el => (this.componentRef = el)} />
</div>
);
}
}import React, { useRef } from 'react';
import ReactToPrint from 'react-to-print';
import { ComponentToPrint } from './ComponentToPrint';
const Example = () => {
const componentRef = useRef();
return (
<div>
<ReactToPrint
trigger={() => <button>Print this out!</button>}
content={() => componentRef.current}
/>
<ComponentToPrint ref={componentRef} />
</div>
);
};Calling from functional components with useReactToPrint
import React, { useRef } from 'react';
import { useReactToPrint } from 'react-to-print';
import { ComponentToPrint } from './ComponentToPrint';
const Example = () => {
const componentRef = useRef();
const handlePrint = useReactToPrint({
content: () => componentRef.current,
});
return (
<div>
<ComponentToPrint ref={componentRef} />
<button onClick={handlePrint}>Print this out!</button>
</div>
);
};onAfterPrintmay fire immediately (before the print dialog is closed) on newer versions of Safari wherewindow.printdoes not block
-
The
connectmethod fromreact-reduxreturns a functional component that cannot be assigned a reference to be used within thecontentprops' callback inreact-to-print. To use a component wrapped inconnectwithincontentcreate an intermediate class component that simply renders your component wrapped inconnect. See 280 for more. -
Using a custom component as the return for the
triggerprops is possible, just ensure you pass along theonClickprop. See 248 for an example.
Officially no, but there are workarounds using the useRef hook. See #96 and #181 for examples. We will officially support this once we release the next major version which will drop React 15 support.
onAfterPrint fires when the print dialog closes, regardless of why it closes. This is the behavior of the onafterprint browser event.
<link>s with empty href attributes are INVALID HTML. In addition, they can cause all sorts of undesirable behavior. For example, many browsers - including modern ones, when presented with <link href=""> will attempt to load the current page. Some even attempt to load the current page's parent directory.
Note: related to the above, img tags with empty src attributes are also invalid, and we may not attempt to load them.
If you've created a component that is intended only for printing and should not render in the parent component, wrap that component in a div with style set to { display: "none" }, like so:
<div style={{ display: "none" }}><ComponentToPrint ref={componentRef} /></div>This will hide ComponentToPrint but keep it in the DOM so that it can be copied for printing.
Unfortunately there is no standard browser API for interacting with the print dialog. All react-to-print is able to do is open the dialog and give it the desired content to print. We cannot modify settings such as the default paper size, if the user has background graphics selected or not, etc.
Set custom margin to the page (29)
To set custom margin to the page,
First, create a function to return the page margin,
const getPageMargins = () => {
return `@page { margin: ${marginTop} ${marginRight} ${marginBottom} ${marginLeft} !important; }`;
};Now, within the JSX call this function within the style tags,
<style>{getPageMargins()}</style>PS: This style tag should be inside the component that is being passed in as the content ref.
Set landscape printing (240)
In the component that is passed in as the content ref, add the following:
@media print {
@page { size: landscape; }
}Printing elements that are not displayed (159)
Instead of using { display: 'none'; }, try using { overflow: hidden; height: 0; }
The pageStyle prop can be used to set anything from simple to complex styles. For example:
const pageStyle = `
@page {
size: 80mm 50mm;
}
@media all {
.pagebreak {
display: none;
}
}
@media print {
.pagebreak {
page-break-before: always;
}
}
`;We often (#327, #343, #382) see issues reported where the developer is using Bootstrap or a similar grid system, and everything works great until the user goes to print and suddenly it seems the styles are off. We've found that often the issue is the grid library uses the smallest sized columns during printing, such as the xs size on Bootstrap's grid, a size developers often don't plan for. The simplest solution is to ensure your grid will adapt to this size appropriately, though this may not be acceptable since you may want the large view to print rather than the smaller view. Another solution is to override the grid column definition. Some newer versions of libraries have specific tools for dealing with printing, for example, Bootstrap 4's Display property.
Define a page-break class to apply to elements which could be sensibly split into a page.
<div className="print-container" style={{ margin: "0", padding: "0" }}>
{listOfContent.map(yourContent => (
<>
<div className="page-break" />
<div>{yourContent}</div>
</>
)}
</div>In your styles, define your @media print styles, which should include setting your preference for CSS page-break- (see w3's reference for options) to auto, and ensuring that your page-break element does not affect non-print style.
@media all {
.page-break {
display: none;
}
}
@media print {
html, body {
height: initial !important;
overflow: initial !important;
-webkit-print-color-adjust: exact;
}
}
@media print {
.page-break {
margin-top: 1rem;
display: block;
page-break-before: auto;
}
}
@page {
size: auto;
margin: 20mm;
}If your content rendered as print media does not automatically break multi-page content into multiple pages, the issue may be
1) style incompatibilities with print media rendering, or
2) a need to assign CSS page-break- properties to define how your document should behave when printed
- A style of
overflow: scroll, when rendered to print, will result in cut off content instead of page breaks to include the content. - A style of
position: absolute, when rendered to print, may result in reformatted, rotated, or re-scaled content, causing unintended affects to print page layout and page breaks.
NOTE: Node >=12 is required to build the library locally. We use Node ^14 for our tests.