Print in Document Editor Control

3 Mar 202310 minutes to read

To print the document, use the print method from document editor instance.

<ejs-button id="print">Print</ejs-button>
<div id="documenteditor" style="width:100%;height:100%">
    <ejs-documenteditor enablePrint=true id="container"></ejs-documenteditor>    
</div>

<script>
        var documenteditor;
        document.addEventListener('DOMContentLoaded', function () {
            var documenteditorElement = document.getElementById("container");            
            documenteditor = documenteditorElement.ej2_instances[0];
            documenteditor.resize();
            var sfdt = {
                "sections": [
                    {
                        "blocks": [
                            {
                                "inlines": [
                                    {
                                        "characterFormat": {
                                            "bold": true,
                                            "italic": true
                                        },
                                        "text": "Hello World"
                                    }
                                ]
                            }
                        ],
                        "headersFooters": {
                        }
                    }
                ]
            };

            documenteditor.open(JSON.stringify(sfdt));

            document.getElementById('print').addEventListener('click', function () {
                documenteditor.print();
            });
        }); 
    </script>
public ActionResult Default()
{
    return View();
}
<ejs-button id="print">Print</ejs-button>
<div id="documenteditor" style="width:100%;height:100%">
    <ejs-documenteditor isReadOnly=false enableEditor=true enableSelection=true enablePrint=true enableSfdtExport=true id="container"></ejs-documenteditor>
</div>

<script>
        var documenteditor;
        document.addEventListener('DOMContentLoaded', function () {
            var documenteditorElement = document.getElementById("container");
            documenteditor = documenteditorElement.ej2_instances[0];
            documenteditor.resize();         
            document.getElementById('print').addEventListener('click', function () {
                documenteditor.print();
            });
        }); 
    </script>
public ActionResult Default()
{
    return View();
}

NOTE

To enable print for a document editor instance, set enablePrint as true.

Improve print quality

Document editor provides an option to improve the print quality using printDevicePixelRatio in Document editor settings. Document editor using canvas approach to render content. Then, canvas are converted to image and it is processed for print. Using printDevicePixelRatio API, you can increase the image quality based on your requirement.

<ejs-documenteditorcontainer id="container" documentEditorSettings="settings" enableToolbar=true height="590px">
</ejs-documenteditorcontainer>

<script>
    var settings = { printDevicePixelRatio: 2 };
</script>

NOTE

By default, printDevicePixelRatio value is 1.

You can print the document in document editor by passing the window instance. This is useful to implement print in third party frameworks such as electron, where the window instance will not be available.

<ejs-button id="print">Print</ejs-button>
<div id="documenteditor">
    <ejs-documenteditor enablePrint=true id="container"></ejs-documenteditor>    
</div>

<script>
    var documenteditor;
    document.addEventListener('DOMContentLoaded', function () {
        var documenteditorElement = document.getElementById("container");
        documenteditor = documenteditorElement.ej2_instances[0];
        documenteditor.print(window);
    }); 
</script>

Page setup

Some of the print options cannot be configured using JavaScript.

However, you can customize margins, paper, and layout options by modifying the section format properties using page setup dialog.

<ejs-documenteditor isReadOnly=false enableEditor=true enableSelection=true enablePrint=true enableSfdtExport=true enablePageSetupDialog=true id="container"></ejs-documenteditor>

<script>
    var documenteditor;    
        var documenteditorElement = document.getElementById("container");
        documenteditorElement.style.height = "100%";
        documenteditorElement.style.width = "100%";
        documenteditor = documenteditorElement.ej2_instances[0];
        documenteditor.resize();
        documenteditor.showPageSetupDialog();    
</script>

By customizing margins, papers, and layouts, the layout of the document will be changed in document editor. To modify these options during print operation, serialize the document as SFDT using the serialize method in document editor instance and open the SFDT data in another instance of document editor in separate window.

<ejs-button id="print">Print</ejs-button>
<div id="documenteditor">
    <ejs-documenteditor isReadOnly=false enableEditor=true enableSelection=true enablePrint=true enableSfdtExport=true id="DocumentEditor1"></ejs-documenteditor>
    <ejs-documenteditor isReadOnly=false enableEditor=true enableSelection=true enablePrint=true enableSfdtExport=true id="DocumentEditor2"></ejs-documenteditor>    
</div>

<script>
    var documenteditor1;
    var documenteditor2;
    document.addEventListener('DOMContentLoaded', function () {
        documenteditor1 = document.getElementById('DocumentEditor1').ej2_instances[0];
        documenteditor2 = document.getElementById('DocumentEditor2').ej2_instances[0];
        documenteditor1.resize();
        documenteditor2.resize();
    });
    document.getElementById('print').addEventListener('click', function () {
        var sfdtData = documenteditor1.serialize();
        documenteditor2.open(sfdtData);
        //Set A5 paper size
        documenteditor2.selection.sectionFormat.pageWidth = 419.55;
        documenteditor2.selection.sectionFormat.pageHeight = 595.30;
        documenteditor2.print();
    });
</script>
public ActionResult Default()
{
    return View();
}

See Also