Built-In Toolbar in Vue Pdfviewer component

14 Jun 202424 minutes to read

The PDF Viewer comes with a powerful built-in toolbar to execute important actions such as page navigation, text search,view mode,download,print,bookmark, and thumbnails.

The following table shows built-in toolbar items and its actions:-

Option Description
OpenOption This option provides an action to load the PDF documents to the PDF Viewer.
PageNavigationTool This option provides an action to navigate the pages in the PDF Viewer. It contains GoToFirstPage,GoToLastPage,GotoPage,GoToNext, and GoToLast tools.
MagnificationTool This option provides an action to magnify the pages either with predefined or user defined zoom factors in the PDF Viewer. Contains ZoomIn, ZoomOut, Zoom, FitPage and FitWidth tools
PanTool This option provides an action for panning the pages in the PDF Viewer.
SelectionTool This option provides an action to enable/disable the text selection in the PDF Viewer.
SearchOption This option provides an action to search a word in the PDF documents.
PrintOption This option provides an action to print the PDF document being loaded in the PDF Viewer.
DownloadOption This Download option provides an action to download the PDF document that has been loaded in the PDF Viewer.
UndoRedoTool This tool provides options to undo and redo the annotation actions performed in the PDF Viewer.
AnnotationEditTool This tool provides options to enable or disable the edit mode of annotation in the PDF Viewer.
FormDesignerEditTool This tool provides options to enable or disable the edit mode of form fields in the PDF Viewer.

Show/Hide the default toolbar

The PDF Viewer has an option to show or hide the complete default toolbar. You can achieve this by using following two ways.,

  • Show/Hide toolbar using enableToolbar API as in the following code snippet
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" :documentPath="documentPath" :enableToolbar="false" :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script setup>
import {
  PdfViewerComponent as EjsPdfviewer, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { provide } from 'vue';

const documentPath = "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf";
const resourceUrl = "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib";

provide('PdfViewer', [Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, Annotation,
  ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner])

</script>
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" :documentPath="documentPath" :enableToolbar="false" :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script>
import {
  PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';

export default {
  name: "App",
  components: {
    "ejs-pdfviewer": PdfViewerComponent
  },
  data() {
    return {
      documentPath: "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf",
      resourceUrl: "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib",
    };
  },
  provide: {
    PdfViewer: [Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, Annotation,
      ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner]
  }
}
</script>

NOTE

To set up the server-backed PDF Viewer in the app.vue file, include the following serviceUrl:
serviceUrl: “https://services.syncfusion.com/vue/production/api/pdfviewer”
Within the template, configure the PDF Viewer by adding the :serviceUrl="serviceUrl" attribute inside the <div> element.

  • Show/Hide toolbar using showToolbar as in the following code snippet
<template>
  <div id="app">
    <button v-on:click="showToolbarClicked">showToolbarClicked</button>
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :documentLoad="documentLoad"
      :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script setup>
import {
  PdfViewerComponent as EjsPdfviewer, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { provide, ref } from 'vue';

const pdfviewer = ref(null);
const documentPath = "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf";
const resourceUrl = "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib;;

provide('PdfViewer', [Toolbar, Magnification, Navigation, LinkAnnotation, Annotation, BookmarkView,
  ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner])

const showToolbarClicked = function (args) {
  pdfviewer.value.ej2Instances.toolbar.showToolbar(false);
}

</script>
<template>
  <div id="app">
    <button v-on:click="showToolbarClicked">showToolbarClicked</button>
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :documentLoad="documentLoad"
      :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script>
import {
  PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';

export default {
  name: "App",
  components: {
    "ejs-pdfviewer": PdfViewerComponent
  },
  data() {
    return {
      documentPath: "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf",
      resourceUrl: "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib"
    };
  },
  provide: {
    PdfViewer: [Toolbar, Magnification, Navigation, LinkAnnotation, Annotation, BookmarkView,
      ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner]
  },
  methods: {
    showToolbarClicked: function (args) {
      this.$refs.pdfviewer.ej2Instances.toolbar.showToolbar(false);
    }
  }
}
</script>

NOTE

To set up the server-backed PDF Viewer in the app.vue file, include the following serviceUrl:
serviceUrl: “https://services.syncfusion.com/vue/production/api/pdfviewer”
Within the template, configure the PDF Viewer by adding the :serviceUrl="serviceUrl" attribute inside the <div> element.

Show/Hide the default toolbaritem

The PDF Viewer has an option to show or hide these grouped items in the default toolbar.

  • Show/Hide toolbaritem using toolbarSettings as in the following code snippet.
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :enableTextSelection="false"
      :toolbarSettings="toolbarSettings" :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script setup>
import {
  PdfViewerComponent as EjsPdfviewer, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { provide } from 'vue';

const documentPath = "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf";
const resourceUrl = "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib";
const toolbarSettings = { showTooltip: true, toolbarItems: ['OpenOption', 'UndoRedoTool', 'PageNavigationTool', 'MagnificationTool', 'PanTool', 'SelectionTool', 'CommentTool', 'SubmitForm', 'AnnotationEditTool', 'FormDesignerEditTool', 'FreeTextAnnotationOption', 'InkAnnotationOption', 'ShapeAnnotationOption', 'StampAnnotation', 'SignatureOption', 'SearchOption', 'PrintOption', 'DownloadOption'], annotationToolbarItems: ['HighlightTool', 'UnderlineTool', 'StrikethroughTool', 'ColorEditTool', 'OpacityEditTool', 'AnnotationDeleteTool', 'StampAnnotationTool', 'HandWrittenSignatureTool', 'InkAnnotationTool', 'ShapeTool', 'CalibrateTool', 'StrokeColorEditTool', 'ThicknessEditTool', 'FreeTextAnnotationTool', 'FontFamilyAnnotationTool', 'FontSizeAnnotationTool', 'FontStylesAnnotationTool', 'FontAlignAnnotationTool', 'FontColorAnnotationTool', 'CommentPanelTool'], formDesignerToolbarItems: ['TextboxTool', 'PasswordTool', 'CheckBoxTool', 'RadioButtonTool', 'DropdownTool', 'ListboxTool', 'DrawSignatureTool', 'DeleteTool'] };

provide('PdfViewer', [Toolbar, Magnification, Navigation, LinkAnnotation, Annotation, BookmarkView,
  ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner])
</script>
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :enableTextSelection="false"
      :toolbarSettings="toolbarSettings" :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script>
import {
  PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';

export default {
  name: "App",
  components: {
    "ejs-pdfviewer": PdfViewerComponent
  },
  data() {
    return {
      documentPath: "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf",
      resourceUrl: "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib",
      toolbarSettings: { showTooltip: true, toolbarItems: ['OpenOption', 'UndoRedoTool', 'PageNavigationTool', 'MagnificationTool', 'PanTool', 'SelectionTool', 'CommentTool', 'SubmitForm', 'AnnotationEditTool', 'FormDesignerEditTool', 'FreeTextAnnotationOption', 'InkAnnotationOption', 'ShapeAnnotationOption', 'StampAnnotation', 'SignatureOption', 'SearchOption', 'PrintOption', 'DownloadOption'], annotationToolbarItems: ['HighlightTool', 'UnderlineTool', 'StrikethroughTool', 'ColorEditTool', 'OpacityEditTool', 'AnnotationDeleteTool', 'StampAnnotationTool', 'HandWrittenSignatureTool', 'InkAnnotationTool', 'ShapeTool', 'CalibrateTool', 'StrokeColorEditTool', 'ThicknessEditTool', 'FreeTextAnnotationTool', 'FontFamilyAnnotationTool', 'FontSizeAnnotationTool', 'FontStylesAnnotationTool', 'FontAlignAnnotationTool', 'FontColorAnnotationTool', 'CommentPanelTool'], formDesignerToolbarItems: ['TextboxTool', 'PasswordTool', 'CheckBoxTool', 'RadioButtonTool', 'DropdownTool', 'ListboxTool', 'DrawSignatureTool', 'DeleteTool'] }
    };
  },
  provide: {
    PdfViewer: [Toolbar, Magnification, Navigation, LinkAnnotation, Annotation, BookmarkView,
      ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner]
  }

}
</script>

NOTE

To set up the server-backed PDF Viewer in the app.vue file, include the following serviceUrl:
serviceUrl: “https://services.syncfusion.com/vue/production/api/pdfviewer”
Within the template, configure the PDF Viewer by adding the :serviceUrl="serviceUrl" attribute inside the <div> element.

  • Show/Hide toolbaritem using showToolbaritem as in the following code snippet
<template>
  <div id="app">
    <button v-on:click="showToolbarClicked">ShowToolbar</button>
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :documentLoad="documentLoad"
      :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script setup>
import {
  PdfViewerComponent as EjsPdfviewer, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { provide, ref } from 'vue';

const pdfviewer = ref(null);
const documentPath = "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf";
const resourceUrl = "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib";

provide('PdfViewer', [Toolbar, Magnification, Navigation, LinkAnnotation, Annotation, BookmarkView,
  ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner])

const showToolbarClicked = function (args) {
  pdfviewer.ej2Instances.toolbar.showToolbarItem(["OpenOption"], false);
}
</script>
<template>
  <div id="app">
    <button v-on:click="showToolbarClicked">ShowToolbar</button>
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :documentLoad="documentLoad"
      :resourceUrl="resourceUrl">
    </ejs-pdfviewer>
  </div>
</template>

<script>
import {
  PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';

export default {
  name: "App",
  components: {
    "ejs-pdfviewer": PdfViewerComponent
  },
  data() {
    return {
      documentPath: "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf",
      resourceUrl: "https://cdn.syncfusion.com/ej2/23.1.43/dist/ej2-pdfviewer-lib"
    };
  },
  provide: {
    PdfViewer: [Toolbar, Magnification, Navigation, LinkAnnotation, Annotation, BookmarkView,
      ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner]
  },
  methods: {
    showToolbarClicked: function (args) {
      this.$refs.pdfviewer.ej2Instances.toolbar.showToolbarItem(["OpenOption"], false);
    }
  }
}
</script>

NOTE

To set up the server-backed PDF Viewer in the app.vue file, include the following serviceUrl:
serviceUrl: “https://services.syncfusion.com/vue/production/api/pdfviewer”
Within the template, configure the PDF Viewer by adding the :serviceUrl="serviceUrl" attribute inside the <div> element.

Customize Built-In Toolbar

PDF Viewer allows you to customize(add, show, hide, enable, and disable) existing items in a toolbar.

<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :resourceUrl="resourceUrl"
      :toolbarClick="toolbarClick" :OnCreateSearch="OnCreateSearch" :toolbarSettings="toolbarSettings">
    </ejs-pdfviewer>
  </div>
</template>
<script setup>

import {
  PdfViewerComponent as EjsPdfviewer, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { ComboBox } from "@syncfusion/ej2-dropdowns";
import { TextBox } from "@syncfusion/ej2-inputs";
import { provide, ref } from 'vue';

const pdfviewer = ref(null);

// Move the toolItem declaration inside the data function
let toolItem1 = {
  prefixIcon: 'e-icons e-paste',
  id: 'print',
  tooltipText: 'Custom toolbar item',
  align: 'left'
};
let toolItem2 = {
  id: 'download',
  text: 'Save',
  tooltipText: 'Custom toolbar item',
  align: 'right'
};
let LanguageList = ['Typescript', 'Javascript', 'Angular', 'C#', 'C', 'Python'];
let toolItem3 = {
  type: 'Input',
  tooltipText: 'Language List',
  cssClass: 'percentage',
  align: 'Left',
  id: 'dropdown',
  template: new ComboBox({ width: 100, value: 'TypeScript', dataSource: LanguageList, popupWidth: 85, showClearButton: false, readonly: false })
};
let toolItem4 = {
  type: 'Input',
  tooltipText: 'Text',
  align: 'Right',
  cssClass: 'find',
  id: 'textbox',
  template: new TextBox({ width: 125, placeholder: 'Type Here' })
}

const documentPath = "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf";
const resourceUrl = "https://cdn.syncfusion.com/ej2/24.1.41/dist/ej2-pdfviewer-lib";
const toolbarSettings = {
  toolbarItems: [toolItem1, toolItem2, 'OpenOption', 'PageNavigationTool', 'MagnificationTool', toolItem3, 'PanTool', 'SelectionTool', 'SearchOption', 'PrintOption', 'DownloadOption', 'UndoRedoTool', 'AnnotationEditTool', 'FormDesignerEditTool', toolItem4, 'CommentTool', 'SubmitForm']
}

provide('PdfViewer', [Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, ThumbnailView,
  Print, TextSelection, TextSearch, Annotation, FormDesigner, FormFields]);

const toolbarClick = function (args) {
  if (args.item && args.item.id === 'print') {
    pdfviewer.value.ej2Instances.printModule.print();
  }
  else if (args.item && args.item.id === 'download') {
    pdfviewer.value.ej2Instances.download();
  }
}
</script>
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath"
      :resourceUrl="resourceUrl" :toolbarClick="toolbarClick" :OnCreateSearch="OnCreateSearch"
      :toolbarSettings="toolbarSettings">
    </ejs-pdfviewer>
  </div>
</template>
<script>

import {
  PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { ComboBox } from "@syncfusion/ej2-dropdowns";
import { TextBox } from "@syncfusion/ej2-inputs";

export default {
  name: "App",
  components: {
    "ejs-pdfviewer": PdfViewerComponent
  },
  data() {
    // Move the toolItem declaration inside the data function
    let toolItem1 = {
      prefixIcon: 'e-icons e-paste',
      id: 'print',
      tooltipText: 'Custom toolbar item',
      align: 'left'
    };
    let toolItem2 = {
      id: 'download',
      text: 'Save',
      tooltipText: 'Custom toolbar item',
      align: 'right'
    };
    let LanguageList = ['Typescript', 'Javascript', 'Angular', 'C#', 'C', 'Python'];
    let toolItem3 = {
      type: 'Input',
      tooltipText: 'Language List',
      cssClass: 'percentage',
      align: 'Left',
      id: 'dropdown',
      template: new ComboBox({ width: 100, value: 'TypeScript', dataSource: LanguageList, popupWidth: 85, showClearButton: false, readonly: false })
    };
    let toolItem4 = {
      type: 'Input',
      tooltipText: 'Text',
      align: 'Right',
      cssClass: 'find',
      id: 'textbox',
      template: new TextBox({ width: 125, placeholder: 'Type Here' })
    }
    return {
      documentPath: "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf",
      resourceUrl: "https://cdn.syncfusion.com/ej2/24.1.41/dist/ej2-pdfviewer-lib",
      toolbarSettings: {
        toolbarItems: [toolItem1, toolItem2, 'OpenOption', 'PageNavigationTool', 'MagnificationTool', toolItem3, 'PanTool', 'SelectionTool', 'SearchOption', 'PrintOption', 'DownloadOption', 'UndoRedoTool', 'AnnotationEditTool', 'FormDesignerEditTool', toolItem4, 'CommentTool', 'SubmitForm']
      }
    };
  },
  provide: {
    PdfViewer: [Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, ThumbnailView,
      Print, TextSelection, TextSearch, Annotation, FormDesigner, FormFields]
  },
  methods: {
    toolbarClick: function (args) {
      if (args.item && args.item.id === 'print') {
        this.$refs.pdfviewer.ej2Instances.printModule.print();
      }
      else if (args.item && args.item.id === 'download') {
        this.$refs.pdfviewer.ej2Instances.download();
      }
    },
  }
}
</script>
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :serviceUrl="serviceUrl"
      :toolbarClick="toolbarClick" :OnCreateSearch="OnCreateSearch" :toolbarSettings="toolbarSettings">
    </ejs-pdfviewer>
  </div>
</template>
<script setup>

import {
  PdfViewerComponent as EjsPdfviewer, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { ComboBox } from "@syncfusion/ej2-dropdowns";
import { TextBox } from "@syncfusion/ej2-inputs";
import { provide, ref } from 'vue';

const pdfviewer = ref(null);

// Move the toolItem declaration inside the data function
let toolItem1 = {
  prefixIcon: 'e-icons e-paste',
  id: 'print',
  tooltipText: 'Custom toolbar item',
  align: 'left'
};
let toolItem2 = {
  id: 'download',
  text: 'Save',
  tooltipText: 'Custom toolbar item',
  align: 'right'
};
let LanguageList = ['Typescript', 'Javascript', 'Angular', 'C#', 'C', 'Python'];
let toolItem3 = {
  type: 'Input',
  tooltipText: 'Language List',
  cssClass: 'percentage',
  align: 'Left',
  id: 'dropdown',
  template: new ComboBox({ width: 100, value: 'TypeScript', dataSource: LanguageList, popupWidth: 85, showClearButton: false, readonly: false })
};
let toolItem4 = {
  type: 'Input',
  tooltipText: 'Text',
  align: 'Right',
  cssClass: 'find',
  id: 'textbox',
  template: new TextBox({ width: 125, placeholder: 'Type Here' })
}

const documentPath = "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf";
const serviceUrl = "https://services.syncfusion.com/vue/production/api/pdfviewer";
const toolbarSettings = {
  toolbarItems: [toolItem1, toolItem2, 'OpenOption', 'PageNavigationTool', 'MagnificationTool', toolItem3, 'PanTool', 'SelectionTool', 'SearchOption', 'PrintOption', 'DownloadOption', 'UndoRedoTool', 'AnnotationEditTool', 'FormDesignerEditTool', toolItem4, 'CommentTool', 'SubmitForm']
}

provide('PdfViewer', [Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, ThumbnailView,
  Print, TextSelection, TextSearch, Annotation, FormDesigner, FormFields]);

const toolbarClick = function (args) {
  if (args.item && args.item.id === 'print') {
    this.$refs.pdfviewer.ej2Instances.printModule.print();
  }
  else if (args.item && args.item.id === 'download') {
    this.$refs.pdfviewer.ej2Instances.download();
  }
}
</script>
<template>
  <div id="app">
    <ejs-pdfviewer id="pdfViewer" ref="pdfviewer" :documentPath="documentPath" :serviceUrl="serviceUrl" :toolbarClick="toolbarClick" :OnCreateSearch="OnCreateSearch"
      :toolbarSettings="toolbarSettings">
    </ejs-pdfviewer>
  </div>
</template>
<script>

import {
  PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation,
  BookmarkView, ThumbnailView, Print, TextSelection, TextSearch,
  Annotation, FormDesigner, FormFields
} from '@syncfusion/ej2-vue-pdfviewer';
import { ComboBox } from "@syncfusion/ej2-dropdowns";
import { TextBox } from "@syncfusion/ej2-inputs";

export default {
  name: "App",
  components: {
    "ejs-pdfviewer": PdfViewerComponent
  },
  data() {
    // Move the toolItem declaration inside the data function
    let toolItem1 = {
      prefixIcon: 'e-icons e-paste',
      id: 'print',
      tooltipText: 'Custom toolbar item',
      align: 'left'
    };
    let toolItem2 = {
      id: 'download',
      text: 'Save',
      tooltipText: 'Custom toolbar item',
      align: 'right'
    };
    let LanguageList = ['Typescript', 'Javascript', 'Angular', 'C#', 'C', 'Python'];
    let toolItem3 = {
      type: 'Input',
      tooltipText: 'Language List',
      cssClass: 'percentage',
      align: 'Left',
      id: 'dropdown',
      template: new ComboBox({ width: 100, value: 'TypeScript', dataSource: LanguageList, popupWidth: 85, showClearButton: false, readonly: false })
    };
    let toolItem4 = {
      type: 'Input',
      tooltipText: 'Text',
      align: 'Right',
      cssClass: 'find',
      id: 'textbox',
      template: new TextBox({ width: 125, placeholder: 'Type Here' })
    }
    return {
      documentPath: "https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf",
      serviceUrl: "https://services.syncfusion.com/vue/production/api/pdfviewer",
      toolbarSettings: {
        toolbarItems: [toolItem1, toolItem2, 'OpenOption', 'PageNavigationTool', 'MagnificationTool', toolItem3, 'PanTool', 'SelectionTool', 'SearchOption', 'PrintOption', 'DownloadOption', 'UndoRedoTool', 'AnnotationEditTool', 'FormDesignerEditTool', toolItem4, 'CommentTool', 'SubmitForm']
      }
    };
  },
  provide: {
    PdfViewer: [Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, ThumbnailView,
      Print, TextSelection, TextSearch, Annotation, FormDesigner, FormFields]
  },
  methods: {
    toolbarClick: function (args) {
      if (args.item && args.item.id === 'print') {
        this.$refs.pdfviewer.ej2Instances.printModule.print();
      }
      else if (args.item && args.item.id === 'download') {
        this.$refs.pdfviewer.ej2Instances.download();
      }
    },
  }
}
</script>

Note : Default value of toolbar items is [‘OpenOption’, ‘PageNavigationTool’,’MagnificationTool’, ‘PanTool’, ‘SelectionTool’, ‘SearchOption’, ‘PrintOption’, ‘DownloadOption’,’UndoRedoTool’, ‘AnnotationEditTool’, ‘FormDesignerEditTool’, ‘CommentTool’, ‘SubmitForm’]

Align Property

The align property is used to specify the alignment of a toolbar item within the toolbar.

Left: Aligns the item to the left side of the toolbar.
Right: Aligns the item to the right side of the toolbar.

Tooltip Property

The tooltip property is used to set the tooltip text for a toolbar item. Tooltip provides additional information when a user hovers over the item.

CssClass Property

The cssClass property is used to apply custom CSS classes to a toolbar item. It allows custom styling of the toolbar item.

Prefix Property

The prefix property is used to set the CSS class or icon that should be added as a prefix to the existing content of the toolbar item.

ID Property

The id property within a CustomToolbarItemModel is a compulsory attribute that plays a vital role in toolbar customization. It serves as a unique identifier for each toolbar item, facilitating distinct references and interactions.

When defining or customizing toolbar items, it is mandatory to assign a specific and descriptive id to each item.
These properties are commonly used when defining custom toolbar items with the CustomToolbarItemModel in the context of Syncfusion PDF Viewer. When configuring the toolbar using the ToolbarSettings`` property, you can include these properties to customize the appearance and behavior of each toolbar item.

NOTE

When customizing toolbar items, you have the flexibility to include either icons or text based on your design preference.

View sample in GitHub

Custom Toolbar

The PDF Viewer provides API for user interactions options provided in it’s built-in toolbar. Using this we can create our own User Interface for toolbar actions in application level by hiding the default toolbar. The following steps are used to create the custom toolbar for PDF Viewer,

Step 1: Follow the steps provided in the link to create simple PDF Viewer sample.

Step 2: Now, add an HTML div element in template to act as the custom toolbar PDF Viewer using the following code.

<template>
  <div>
    <ejs-toolbar id="customToolbar" ref="toolbar">
      <e-items>
        <e-item prefixIcon='e-pv-open-document-icon' tooltipText='Open' :click="openClicked"></e-item>
        <e-item prefixIcon='e-pv-previous-page-navigation-icon' id="previousPage" tooltipText='Previous Page' align='Center' :click="previousClicked"></e-item>
        <e-item prefixIcon='e-pv-next-page-navigation-icon' id="nextPage" tooltipText='Next Page' align='Center' :click="nextClicked"></e-item>
        <e-item :template='pageNoTemplate' tooltipText='Page Number' align='Center'></e-item>
        <e-item :template='pageTextTemplate' tooltipText='Page Number' align='Center'></e-item>
        <e-item prefixIcon='e-pv-print-document-icon' tooltipText='Print' align='Right' :click="printClicked"></e-item>
        <e-item prefixIcon='e-pv-download-document-icon' tooltipText='Download' align='Right' :click="downloadClicked"></e-item>
      </e-items>
    </ejs-toolbar>

    <ejs-toolbar id="magnificationToolbar">
      <e-items>
        <e-item prefixIcon='e-pv-fit-page-icon' id="fitPage" tooltipText='Fit to page' :click="pageFitClicked"></e-item>
        <e-item prefixIcon='e-pv-zoom-in-icon' id="zoomIn" tooltipText='Zoom in' :click="zoomInClicked"></e-item>
        <e-item prefixIcon='e-pv-zoom-out-icon' id="zoomOut" tooltipText='Zoom out' :click="zoomOutClicked"></e-item>
      </e-items>
    </ejs-toolbar>

    <input type ="file" id="fileUpload" accept=".pdf" style="display:block;visibility:hidden;width:0;height:0;"></input>

    <div class="control-section">
      <ejs-pdfviewer 
        id="pdfviewer" 
        ref="pdfviewer" 
        :pageChange="pageChange" 
        :documentLoad="documentLoad" 
        :serviceUrl="serviceUrl" 
        :documentPath="documentPath" 
        :enableToolbar="enableToolbar">
      </ejs-pdfviewer>
    </div>
  </div>
</template>
<template>
  <div>
    <ejs-toolbar id="customToolbar" ref="toolbar">
      <e-items>
        <e-item prefixIcon='e-pv-open-document-icon' tooltipText='Open' :click="openClicked"></e-item>
        <e-item prefixIcon='e-pv-previous-page-navigation-icon' id="previousPage" tooltipText='Previous Page' align='Center' :click="previousClicked"></e-item>
        <e-item prefixIcon='e-pv-next-page-navigation-icon' id="nextPage" tooltipText='Next Page' align='Center' :click="nextClicked"></e-item>
        <e-item :template='pageNoTemplate' tooltipText='Page Number' align='Center'></e-item>
        <e-item :template='pageTextTemplate' tooltipText='Page Number' align='Center'></e-item>
        <e-item prefixIcon='e-pv-print-document-icon' tooltipText='Print' align='Right' :click="printClicked"></e-item>
        <e-item prefixIcon='e-pv-download-document-icon' tooltipText='Download' align='Right' :click="downloadClicked"></e-item>
      </e-items>
    </ejs-toolbar>

    <ejs-toolbar id="magnificationToolbar">
      <e-items>
        <e-item prefixIcon='e-pv-fit-page-icon' id="fitPage" tooltipText='Fit to page' :click="pageFitClicked"></e-item>
        <e-item prefixIcon='e-pv-zoom-in-icon' id="zoomIn" tooltipText='Zoom in' :click="zoomInClicked"></e-item>
        <e-item prefixIcon='e-pv-zoom-out-icon' id="zoomOut" tooltipText='Zoom out' :click="zoomOutClicked"></e-item>
      </e-items>
    </ejs-toolbar>

    <input type ="file" id="fileUpload" accept=".pdf" style="display:block;visibility:hidden;width:0;height:0;"></input>

    <div class="control-section">
      <ejs-pdfviewer 
        id="pdfviewer" 
        ref="pdfviewer" 
        :pageChange="pageChange" 
        :documentLoad="documentLoad" 
        :documentPath="documentPath" 
        :enableToolbar="enableToolbar">
      </ejs-pdfviewer>
    </div>
  </div>
</template>

Step 3: Import and inject the modules used for the custom toolbar,

    import Vue from "vue";
    import { PdfViewerPlugin, Toolbar, Magnification, Navigation, 
             LinkAnnotation, BookmarkView, Annotation, ThumbnailView, 
             Print, TextSelection, TextSearch, FormFields, FormDesigner } from "@syncfusion/ej2-vue-pdfviewer";
    import { ToolbarPlugin } from "@syncfusion/ej2-vue-navigations";
    import { CalendarPlugin } from '@syncfusion/ej2-vue-calendars';
    Vue.use(CalendarPlugin);
    Vue.use(PdfViewerPlugin);
    Vue.use(ToolbarPlugin);

Step 4: Hide the default toolbar of PDF Viewer using below code snippet,

export default Vue.extend({
    data: function () {
        return {
            documentPath: "https://cdn.syncfusion.com/content/pdf/hive-succinctly.pdf",
            enableToolbar: false,
            pageNoTemplate: '<div class=""><input type="text" class="e-input-group e-pv-current-page-number" id="currentPage" /></div>',
            pageTextTemplate: '<div class=""><span class="e-pv-total-page-number" id="totalPage">of 0</span></div>'
        }
    })
};
export default Vue.extend({
    data: function () {
        return {
            serviceUrl: "https://services.syncfusion.com/vue/production/api/pdfviewer",
            documentPath: "https://cdn.syncfusion.com/content/pdf/hive-succinctly.pdf",
            enableToolbar: false,
            pageNoTemplate: '<div class=""><input type="text" class="e-input-group e-pv-current-page-number" id="currentPage" /></div>',
            pageTextTemplate: '<div class=""><span class="e-pv-total-page-number" id="totalPage">of 0</span></div>'
        }
    })
};

Step 7: Add the following style to achieve the custom toolbar styling,

<style>
   #pdfviewer {
        height: 640px;
    }

    .control-section {
        padding-top: 0px !important;
    }

    #magnificationToolbar {
        background: transparent;
        height: auto;
        min-height: 56px;
        width: auto;
        border: none;
        position: absolute;
        z-index: 900;
        top: calc(100% - 110px);
        left: calc(100% - 120px);
        transform: rotate(90deg);
    }

    div#magnificationToolbar.e-toolbar .e-toolbar-items {
        background: transparent;
        padding: 2px 3px 2px 2px;
    }

    #magnificationToolbar.e-toolbar .e-tbar-btn {
        border-radius: 50%;
        min-height: 30px;
        min-width: 30px;
        border: 1px solid #c8c8c8;
    }

    #customToolbar {
        top: 0px;
        z-index: 900;
    }

    .e-bookmark-popup {
        height: 300px;
        max-width: 300px;
    }

    .e-text-search-popup {
        height: 104px;
        max-width: 348px;
    }

    .e-custom-search-input {
        width: 234px;
    }

    .e-text-search-popup .e-footer-content, .e-bookmark-popup .e-footer-content {
        padding: 0;
        height: 0;
    }

    .search-button, .search-button:disabled, .search-button:focus, .search-button:hover {
        background: transparent;
        box-shadow: none;
    }

    #popup .e-dlg-content {
        padding-left: 0;
        padding-bottom: 0;
    }

    .e-pv-bookmarks {
        min-width: 234px;
    }

    .e-pv-current-page-number {
        width: 46px;
        height: 28px;
        text-align: center;
    }

    .material .e-pv-current-page-number {
        border-width: 1px;
    }

    .e-icons {
        font-family: "e-icons";
        font-style: normal;
        font-variant: normal;
        font-weight: normal;
        line-height: 1;
        text-transform: none;
    }

    .e-pv-icon::before {
        font-family: 'e-icons';
    }

    .e-pv-open-document-icon::before  {
        content: '\e91c';
    }

    .e-pv-download-document-icon::before {
        content: '\e914';
    }

    .e-pv-print-document-icon::before {
        content: '\e917';
    }

    .e-pv-previous-page-navigation-icon::before {
        content: '\e910';
    }

    .e-pv-next-page-navigation-icon::before {
        content: '\e911';
    }

    .e-pv-zoom-out-icon::before {
        content: '\e912';
    }

    .e-pv-zoom-in-icon::before {
        content: '\e91d';
    }

    .e-pv-fit-page-icon::before {
        content: '\e91b';
    }

    .e-btn-icon.e-pv-zoom-out-icon.e-icons {
        transform: rotate(90deg);
    }

    @font-face {
        font-family: "e-icons";
        font-style: normal;
        font-weight: normal;
        src: url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
    }
</style>

The icons are embedded in the font file used in above code snippet.

Step 8: Add the following scripts for performing user interaction in PDF Viewer in code behind

import Vue from "vue";
    import { PdfViewerPlugin, Toolbar, Magnification, Navigation, 
         LinkAnnotation, BookmarkView, Annotation, ThumbnailView, 
         Print, TextSelection, TextSearch, FormFields, FormDesigner } from "@syncfusion/ej2-vue-pdfviewer";
    import { ToolbarPlugin } from "@syncfusion/ej2-vue-navigations";
    import { CalendarPlugin } from '@syncfusion/ej2-vue-calendars';
    Vue.use(CalendarPlugin);
    Vue.use(PdfViewerPlugin);
    Vue.use(ToolbarPlugin);
    var toolbar;
    var viewer;
    var fileName;
    var currentPageBox;

    function updatePageNavigation() {
        if (viewer.currentPageNumber === 1) {
            toolbar.enableItems(document.getElementById('previousPage'), false);
            toolbar.enableItems(document.getElementById('nextPage'), true);
        }
        else if (viewer.currentPageNumber === viewer.pageCount) {
            toolbar.enableItems(document.getElementById('previousPage'), true);
            toolbar.enableItems(document.getElementById('nextPage'), false);
        }
        else {
            toolbar.enableItems(document.getElementById('previousPage'), true);
            toolbar.enableItems(document.getElementById('nextPage'), true);
        }
    }

    function onCurrentPageBoxKeypress(event) {
        if ((event.which < 48 || event.which > 57) && event.which !== 8 && event.which !== 13) {
            event.preventDefault();
            return false;
        }
        else {
            var currentPageNumber = parseInt(currentPageBox.value);
            if (event.which === 13) {
                if (currentPageNumber > 0 && currentPageNumber <= viewer.pageCount) {
                    viewer.navigation.goToPage(currentPageNumber);
                }
                else {
                    currentPageBox.value = viewer.currentPageNumber.toString();
                }
            }
            return true;
        }
    }

    function onCurrentPageBoxClicked() {
        currentPageBox.select();
    }

    function readFile(args) {
        // tslint:disable-next-line
        let upoadedFiles = args.target.files;
        if (args.target.files[0] !== null) {
            let uploadedFile = upoadedFiles[0];
            fileName = uploadedFile.name;
            if (uploadedFile) {
                let reader = new FileReader();
                reader.readAsDataURL(uploadedFile);
                // tslint:disable-next-line
                reader.onload = function (e) {
                    let uploadedFileUrl = e.currentTarget.result;
                    viewer.load(uploadedFileUrl, null);
                    viewer.fileName = fileName;
                };
            }
        }
    };

    export default Vue.extend({
        data: function () {
            return {
                documentPath: "https://cdn.syncfusion.com/content/pdf/hive-succinctly.pdf",
                enableToolbar: false,
                pageNoTemplate: '<div class=""><input type="text" class="e-input-group e-pv-current-page-number" id="currentPage" /></div>',
                pageTextTemplate: '<div class=""><span class="e-pv-total-page-number" id="totalPage">of 0</span></div>'
            }
        },

        PdfViewer: [ Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, Annotation, 
                     ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner ]},
                     
        methods: {
            openClicked: function (args) {
                document.getElementById('fileUpload').click();
            },
            previousClicked: function (args) {
                viewer.navigation.goToPreviousPage();
            },
            nextClicked: function (args) {
                viewer.navigation.goToNextPage();
            },
            printClicked: function (args) {
                viewer.print.print();
            },
            downloadClicked: function (args) {
                viewer.download();
            },
            pageFitClicked: function (args) {
                viewer.magnification.fitToPage();
            },
            zoomInClicked: function (args) {
                viewer.magnification.zoomIn();
            },
            zoomOutClicked: function (args) {
                viewer.magnification.zoomOut();
            },
            pageChange: function (args) {
                currentPageBox = document.getElementById('currentPage');
                currentPageBox.value = viewer.currentPageNumber.toString();
                updatePageNavigation();
            },
            documentLoad: function (args) {
                viewer = this.$refs.pdfviewer.ej2Instances;
                toolbar = this.$refs.toolbar.ej2Instances;
                currentPageBox = document.getElementById('currentPage');
                currentPageBox.value = '1';
                document.getElementById('totalPage').textContent = 'of ' + viewer.pageCount;
                currentPageBox.addEventListener('keypress', onCurrentPageBoxKeypress);
                currentPageBox.addEventListener('click', onCurrentPageBoxClicked);
                document.getElementById('fileUpload').addEventListener('change', readFile, false);
                updatePageNavigation();
            }
        }
    });
import Vue from "vue";
    import { PdfViewerPlugin, Toolbar, Magnification, Navigation, 
         LinkAnnotation, BookmarkView, Annotation, ThumbnailView, 
         Print, TextSelection, TextSearch, FormFields, FormDesigner } from "@syncfusion/ej2-vue-pdfviewer";
    import { ToolbarPlugin } from "@syncfusion/ej2-vue-navigations";
    import { CalendarPlugin } from '@syncfusion/ej2-vue-calendars';
    Vue.use(CalendarPlugin);
    Vue.use(PdfViewerPlugin);
    Vue.use(ToolbarPlugin);
    var toolbar;
    var viewer;
    var fileName;
    var currentPageBox;

    function updatePageNavigation() {
        if (viewer.currentPageNumber === 1) {
            toolbar.enableItems(document.getElementById('previousPage'), false);
            toolbar.enableItems(document.getElementById('nextPage'), true);
        }
        else if (viewer.currentPageNumber === viewer.pageCount) {
            toolbar.enableItems(document.getElementById('previousPage'), true);
            toolbar.enableItems(document.getElementById('nextPage'), false);
        }
        else {
            toolbar.enableItems(document.getElementById('previousPage'), true);
            toolbar.enableItems(document.getElementById('nextPage'), true);
        }
    }

    function onCurrentPageBoxKeypress(event) {
        if ((event.which < 48 || event.which > 57) && event.which !== 8 && event.which !== 13) {
            event.preventDefault();
            return false;
        }
        else {
            var currentPageNumber = parseInt(currentPageBox.value);
            if (event.which === 13) {
                if (currentPageNumber > 0 && currentPageNumber <= viewer.pageCount) {
                    viewer.navigation.goToPage(currentPageNumber);
                }
                else {
                    currentPageBox.value = viewer.currentPageNumber.toString();
                }
            }
            return true;
        }
    }

    function onCurrentPageBoxClicked() {
        currentPageBox.select();
    }

    function readFile(args) {
        // tslint:disable-next-line
        let upoadedFiles = args.target.files;
        if (args.target.files[0] !== null) {
            let uploadedFile = upoadedFiles[0];
            fileName = uploadedFile.name;
            if (uploadedFile) {
                let reader = new FileReader();
                reader.readAsDataURL(uploadedFile);
                // tslint:disable-next-line
                reader.onload = function (e) {
                    let uploadedFileUrl = e.currentTarget.result;
                    viewer.load(uploadedFileUrl, null);
                    viewer.fileName = fileName;
                };
            }
        }
    };

    export default Vue.extend({
        data: function () {
            return {
                serviceUrl: "https://services.syncfusion.com/vue/production/api/pdfviewer",
                documentPath: "https://cdn.syncfusion.com/content/pdf/hive-succinctly.pdf",
                enableToolbar: false,
                pageNoTemplate: '<div class=""><input type="text" class="e-input-group e-pv-current-page-number" id="currentPage" /></div>',
                pageTextTemplate: '<div class=""><span class="e-pv-total-page-number" id="totalPage">of 0</span></div>'
            }
        },

        PdfViewer: [ Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, Annotation, 
                     ThumbnailView, Print, TextSelection, TextSearch, FormFields, FormDesigner ]},

        methods: {
            openClicked: function (args) {
                document.getElementById('fileUpload').click();
            },
            previousClicked: function (args) {
                viewer.navigation.goToPreviousPage();
            },
            nextClicked: function (args) {
                viewer.navigation.goToNextPage();
            },
            printClicked: function (args) {
                viewer.print.print();
            },
            downloadClicked: function (args) {
                viewer.download();
            },
            pageFitClicked: function (args) {
                viewer.magnification.fitToPage();
            },
            zoomInClicked: function (args) {
                viewer.magnification.zoomIn();
            },
            zoomOutClicked: function (args) {
                viewer.magnification.zoomOut();
            },
            pageChange: function (args) {
                currentPageBox = document.getElementById('currentPage');
                currentPageBox.value = viewer.currentPageNumber.toString();
                updatePageNavigation();
            },
            documentLoad: function (args) {
                viewer = this.$refs.pdfviewer.ej2Instances;
                toolbar = this.$refs.toolbar.ej2Instances;
                currentPageBox = document.getElementById('currentPage');
                currentPageBox.value = '1';
                document.getElementById('totalPage').textContent = 'of ' + viewer.pageCount;
                currentPageBox.addEventListener('keypress', onCurrentPageBoxKeypress);
                currentPageBox.addEventListener('click', onCurrentPageBoxClicked);
                document.getElementById('fileUpload').addEventListener('change', readFile, false);
                updatePageNavigation();
            }
        }
    });

Sample :
https://ej2.syncfusion.com/vue/demos/#/material/pdfviewer/custom-toolbar.html

See also