# JourneyPrinter {% hint style="info" %} **Version compatibility** This feature was introduced in version **19.12.2** of the JourneyApps Container for iOS and Android, and version **20.4.1** for Desktop. Version **4.72.0** of the JourneyApps Runtime is also required. {% endhint %} JourneyApps can print a PDF directly using the native printing capabilities provided by the operating system. ### How to check if JourneyPrinter is supported You can also check that printing is supported: ```javascript var capabilities = JourneyPrinter.getCapabilities(); ``` **Returns** ```json { print: true|false, generatePdf: true|false } ``` {% hint style="info" %} **Note**: For Runtime versions below 4.72.0, the `JourneyPrinter` object will not be available. {% endhint %} ### Printing a PDF To print a PDF, you need to provide the `JourneyPrinter.printPDF` function a PDF in the format of an ArrayBuffer or a base 64 string. In the case of an attachment object, helper functions are available: ``` // Print a PDF from an ArrayBuffer: JourneyPrinter.printPdf(view.pdf.toArrayBuffer()); // Print a PDF from base 64 string: JourneyPrinter.printPdf(view.pdf.toBase64()); ``` The origin of the PDF data can also be another source, e.g. using an `` component to generate a PDF and send it in base 64 format to the app to be printed. ### Generate a PDF {% hint style="info" %} This feature was introduced in version **20.10.1** of the JourneyApps Container for Desktop. It is not available on mobile or web containers. Version **4.77.0** of the JourneyApps Runtime is also required. {% endhint %} #### Format ```javascript JourneyPrinter.generatePdf(htmlString, options); ``` where `htmlString` is a string of HTML with `@page` or `@media print` CSS rules to control how the PDF is displayed. In addition, the `` tag of the HTML must also contain this `` tag: ```html ``` and optional `options`: | value | Details | Default | | --------------- | ----------------------------------------------------------------------------------------- | ------- | | landscape | Boolean to generate the PDF in landscape orientation | false | | marginType | Number to specify the type of margin. 0 - default margin, 1 - no margin, 2 minimum margin | 0 | | printBackground | Boolean to choose to print the background | true | | pageSize | Size of the page. 'A3', 'A4', 'A5', 'Legal', 'Letter', 'Tabloid' | 'A4' | **Returns**: The generated PDF as an **ArrayBuffer**. #### Example ```javascript var capabilities = JourneyPrinter.getCapabilities(); if (capabilities.generatePdf == true) { // generate a PDF from an HTML string var generatedPdf = JourneyPrinter.generatePdf(htmlString, options); // create an Attachment object from the generated PDF ArrayBuffer: view.generatedPdf = Attachment.create({data: generatedPdf, mediaType: 'application/pdf'}); } ```