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The JavaScript PDF Viewer is a lightweight and modular control for viewing and printing PDF files in your web applications. It provides the best viewing experience available with core interactions such as zooming, scrolling, text searching, text selection and copying text. The thumbnail, bookmark, hyperlink, and table of contents support provides easy navigation within and outside the PDF files.

High performance

Instant loading in JavaScript PDF Viewer.

Instant Loading

Load PDF files with thousands of pages instantly.

Less runtime memory in JavaScript PDF Viewer.

Less runtime memory

On-demand loading and virtualization hold only the minimum required pages at runtime to reduce memory consumption.

Virtualized pages.

Virtualized pages

Render pages on demand to help reduce initial load time when working with large PDF files.

Open PDF file

Open and display both normal PDF files and those protected with AES and RC4 encryption algorithms (password protected). Open PDF files from stream, file paths and as byte arrays.

Open pages.

Review or annotate PDF files

Review PDF files using a rich set of annotating tools in the PDF Viewer.

Highlight text.

Highlight text

Highlight important text in PDF files. You can customize the color of the highlight or remove it.

Underline text

Underline notable text in PDF files. You can customize the color of the underline or remove it.

Underline text.



Strikethrough unimportant text in PDF files. You can customize the color of the strikethrough or remove it.

Shape annotations

Use drawing tools to add a rectangle, circle, line, polyline, and polygon to a PDF file. The shapes can also be moved, resized, and customized.

Shape annotations

Calibrate - Measuring tools

Calibrate - Measuring tools

Measure the distance, area, radius, volume, and perimeter of the objects using measurement tools.

Stamp a document

Add stamps to a PDF file like applying rubber stamps to a paper document from a list of built-in stamps or create your own stamps.

Stamp annotation

Sticky notes and comments

Sticky notes and comments

The sticky notes and comment options are used to track review feedbacks and status of the PDF documents.

Free-text annotation

Support has been provided to add text to a PDF file. The text, like the text box tool, can be moved, resized, and customized.

Free-text annotation.

Import and export annotations

Annotations in a PDF file can be exported as JSON and stored in the database. You can also import annotation JSON data to a PDF file.

Import and export annotations

Form filling

Form filling

Users can view and fill the AcroForm fields. Support has also been provided to add handwritten signatures to a PDF file.

Responsive rendering

The PDF Viewer is engineered to be responsive and can withstand changes in the size of the parent element.

Responsive rendering.

Printing PDF.

Printing PDF

The PDF Viewer supports printing the loaded PDF file.

Built-in toolbar

The PDF Viewer comes with a powerful built-in toolbar to execute important actions such as page navigation, text search, view mode, download, print, bookmarks, and thumbnails. You can design your own toolbar as required with PDF Viewer APIs.

Built-in toolbar.

The HTML5 JavaScript PDF Viewer control supports different internal and external navigations.

Bookmark navigation.

Bookmark navigation

Bookmarks saved in PDF files are loaded and made ready for easy navigation.

Thumbnail navigation

Thumbnails are miniature representations of actual pages in PDF files. This feature displays thumbnails of the pages and allows navigation through them.

Thumbnail navigation.

Hyperlink navigation.

Navigate to the URLs (website links) in a PDF file.

Table of contents navigation

Navigate to different parts of a PDF file listed in the table of contents section.

Table of content navigation in JavaScript PDF Viewer

Select and copy text in JavaScript PDF Viewer.

Select and copy text

The PDF Viewer allows users to select and copy text from PDF files. This is helpful for copying and sharing text content.

Search text

Locate text easily in a PDF file.

Search text in JavaScript PDF Viewer.


Toolbar customization in JavaScript PDF Viewer.

Toolbar customization

Create a custom toolbar.

Applying theme

Choose from eight stunning, built-in themes.

Applying theme in JavaScript PDF Viewer.

Localization in JavaScript PDF Viewer.


All static text within the PDF Viewer can be localized to any supported language.

Other supported frameworks

As a pure JavaScript component, our PDF Viewer integrates easily with Angular, React, Vue and Blazor frameworks.


Frequently Asked Questions

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What do our customers say about us?

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We're using the file formats and Windows/JavaScript list controls a lot. They're fast, easy to use, and the documentation is good and contains examples. Tickets with questions or suggestions were answered within a day, so we're happy to use the Syncfusion libraries.
Daniel Persidok

Daniel Persidok

wpd onshore GmbH & Co. KG

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Using Syncfusion Angular and JavaScript controls makes front-end web development a piece of cake. Each component has many properties that can be configured as per your desire, methods that can be used to interact with the element, and a lot of events that trigger at different stages, which makes modifying your components according to the state of the application an easy task. Also, their support is amazing! They always offer a sample working project, which makes it very simple to solve your question about your code.
Carlos Rodriguez Garcia

Carlos Rodriguez Garcia


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