@tato30/vue-pdf

VuePDF

VuePDF is a Vue 3 wrapper for pdf.js that enable you to display pdf pages in your project.

Compatibility

This package is for Vue 3 and supports the same browsers as Vue 3. If you want a package for Vue 2 or older browsers check this project from FranckFreiburger: vue-pdf.

Content

• Install
• Live Demo
• Basic Usage
• usePDF Composable
  • Params
  • Returns
• VuePDF Component
  • Props
  • Events

Install

npm i @tato30/vue-pdf

Live Demo

You can find a live demo to check a few examples to use the component.

Basic Usage

<template>
  <VuePDF :pdf="pdf" :page="1" />
</template>

<script>
import {usePDF, VuePDF} from '@tato30/vue-pdf'

export default {
  components: {
    VuePDF
  },
  setup(){
    const { pdf, pages, info } = usePDF("document.pdf")

    console.log(`Document has ${pages} pages`)
    console.log(`Document info: ${info}`)

    return {
      pdf
    }
  }
}
</script>

usePDF Composable

This function is the pdf loader, let you get the basic information and properties about pdf document.

Params

src

Type: string | URL | TypedArray
Required: True

This param is the same src of pdf.js

const { pdf, pages, info } = usePDF("document.pdf")

options

Type: object

an object with the optional properties:

• onPassword: Callback function to request the document password if wrong or no passwrod provider.
• onProgress: Callback function to enable progress monitor.
• onError: function to handle pdf loading errors

const onPassword = (updatePassword, reason) => {
  console.log(`Reason for callback: ${reason}`)
  updatePassword('documentpassword1234')
}

const onProgress = ({loaded, total}) => {
  console.log(`${loaded / total * 100}% Loaded`);
}

const onError = (reason) => {
  console.error(`PDF loading error: ${reason}`)
}

const { pdf, pages, info } = usePDF("document.pdf", {
  onPassword: onPassword,
  onProgress: onProgress,
  onError: onError
})

Returns

pdf

Type: PDFDocumentLoadingTask

The loading task of document, see PDFDocumentLoadingTask for more details

pages

Type: int

Pages number of document

info

Type: object

Info object about document

{
  "metadata": {...}, // Metadata object
  "attachments": {...}, // File attachments object
  "javascript": [...], // Array of embedded scripts
}

---

VuePDF Component

This is the component to render a pdf page.

Props

:pdf

Type: PDFDocumentLoadingTask
Required: True

The PDFDocumentLoadingTask obtained from usePDF

<VuePDF :pdf="pdf" />

:page

Type: int
Default: 1

Page to render, this prop must be the page number starting at 1

<VuePDF :pdf="pdf" :page="2" />

:scale

Type: int
Default: 1

Scale to render page

<VuePDF :pdf="pdf" :page="1" :scale="0.5" />

:fit-parent

Type: boolean
Default: false

Fit page with parent width, this prop replace scale in width calculation

<VuePDF :pdf="pdf" :page="1" fit-parent />

:rotation

Type: int
Default: Document Default

Rotate the page in 90° multiples eg. (90, 180, 270)

<VuePDF :pdf="pdf" :page="1" :rotation="90" />

:text-layer

Type: boolean
Default: false

Enable text selection in page

<VuePDF :pdf="pdf" :page="1" text-layer />

:annotation-layer

Type: boolean
Default: false

Enable document annotations like links, popups, etc.

<VuePDF :pdf="pdf" :page="1" annotation-layer />

:annotations-filter

Type: array
Default: null

Allows to choose which annotations display on page, the following options are available:

Link	Text	Stamp	Popup	FreeText
Line	Square	Circle	PolyLine	Caret
Ink	Polygon	Highlight	Underline	Squiggly
StrikeOut	FileAttachment	Widget.Tx	Widget.Btn	Widget.Ch
Widget.Sig	Widget

NOTE: Widget shows all Widget subtypes like Widget.Tx, etc.

<VuePDF :pdf="pdf" :page="1" annotation-layer :annotations-filter="filter" />

<script>
...
setup(){
  return {
    filter: ["Highlight", "Popup", "Widget"]
  }
}

Methods

reload()

Allows to reload page render task, useful to update parent width when fit-parent prop is used

<template>
  <VuePDF :pdf="pdf" :page="2" ref="VPDF"  />
</template>

setup(){  
    const VPDF = ref({})
    return {
      VPDF,
      someEvent: () => {        
        VPDF.value.reload()
      },
    }
  }

Events

@loaded -> object

Emitted when page has finishes rendering in view

<template>
  <VuePDF :pdf="pdf" :page="2"  @loaded="loadedEvent"  />
</template>

const loadedEvent = (value) => {
  console.log(value);
},

Value contains render page info

EXAMPLE:

{ 
  "viewBox": [ 0, 0, 595.276, 841.89 ],
  "scale": 1,
  "rotation": 90,
  "offsetX": 0,
  "offsetY": 0,
  "transform": [ 0, 1, 1, 0, 0, 0 ],
  "width": 841.89,
  "height": 595.276,
  "annotations": []
}

@annotation -> object

Emitted when user has interaction with any annotation in document view.

<template>
  <VuePDF :pdf="pdf" :page="2"  @annotation="annotationEvent"  />
</template>

const annotationEvent = (value) => {
  console.log(value);
},

Annotations values has the following struct:

Property	Value
type	Annotation type, posible values: internal-link, link, file-attachment, form-text, form-select, form-checkbox, form-radio, form-button
data	Annotation associated data

EXAMPLES:

internal-link

internal-link fires when user clicks a link that redirects to other content within the document

{
  "type": "internal-link",
  "data": {
    "referencedPage": 3,
    "offset": { 
      "left": 82,
      "bottom": 716
    }
  }
}

link

link fires when user clicks an external link

{
  "type": "link",
  "data": {
    "url": "mailto:[e-mail]",
    "unsafeUrl": "mailto:[e-mail]"
  }
}

file-attachment

file-attachment fires when user double-clicks an attachment link

{
  "type": "file-attachment",
  "data": {
    "filename": "utf8test.txt",
    "content": [ 83, 101, 110, ... ] // Uint8Array
  }
}

form-text

form-text fires when user inputs a value in an textfield element

{
  "type": "form-text",
  "data": {
    "fieldName": "firstname",
    "value": "Aldo Hernandez"
  }
}

form-select

form-text fires when user inputs a value in an one-select or multi-select element

{
  "type": "form-select",
  "data": {
    "fieldName": "gender",
    "value": [
      {
        "value": "M",
        "label": "Male"
      }
    ],
    "options": [
      {
        "value": "",
        "label": "-"
      },
      {
        "value": "M",
        "label": "Male"
      },
      {
        "value": "F",
        "label": "Female"
      }
    ]
  }
}

form-checkbox

form-checkbox fires when user changes a checkbox field

{
  "type": "form-checkbox",
  "data": {
    "fieldName": "newsletter",
    "checked": true
  }
}

form-radio

form-radio fires when user changes a radio field

{
  "type": "form-radio",
  "data": {
    "fieldName": "drink",
    "value": "Wine",
    "defaultValue": "Beer",
    "options": [ "Water", "Beer", "Wine", "Milk" ]
  }
}

form-button

form-button fires when user click on push button

{
  "type": "form-button",
  "data": {
    "fieldName": "Print",
    "actions": {
      "Mouse Down": [ "Print()" ]
    },
    "reset": false
  }
}