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Overview

The Blazor PDF Viewer is an UI component for displaying PDFs from byte arrays, streams, or file paths. In addition to being able to print PDFs, it supports reviewing PDFs with annotation tools. Thumbnails, bookmarks, hyperlinks, and tables of content provide easy navigation within and outside PDF files. Form-filling support allows filling and printing with AcroForms.


High performance

Blazor PDF Viewer Instant Loading

Instant loading

Load PDF files with thousands of pages instantly.

Blazor PDF Viewer Less Runtime Memory

Less runtime memory

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

Blazor PDF Viewer 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.

Blazor PDF Viewer Open Pages


Review or annotate PDF files

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

Blazor 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.

Blazor PDF Viewer Underline Text

Blazor PDF Viewer Strikethrough

Strikethrough

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

Shape annotations

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

Blazor PDF Viewer Shape Annotations

Blazor PDF Viewer 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 the list of built-in stamps or create your own stamps.

Blazor PDF Viewer Stamp Annotation

Blazor PDF Viewer Free Text Annotation

Free-text annotation

Include free text in PDF files. You can move, resize, remove, or edit the appearance of free text.

Sticky notes and comments

Add sticky notes anywhere in a PDF file. It can be moved and removed.

Blazor PDF Viewer Sticky Notes and Comments


Blazor PDF Viewer Handwritten Signature

Handwritten signature

Add handwritten signature to PDF files. The signature can be resized, moved, removed, saved, and customized.


PDF form filling

Fill, edit, flatten, and save AcroForms fields in PDF files.

Blazor View PDF Form Filling


Import and Export

The Blazor PDF Viewer supports the import and export of annotations and form data.

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 form data

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


Blazor PDF Viewer Responsive Rendering

Responsive rendering

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


Printing PDF

The Blazor PDF Viewer supports printing the loaded PDF document along with adding and modifying annotation and signature details.

Blazor PDF Viewer Printing PDF


Blazor View PDF Built-in Toolbar

Built-in toolbar

The Blazor PDF Viewer comes with a powerful built-in toolbar to execute important actions such as page navigation, text search, and various annotation actions. You can design your own toolbar as required with Blazor PDF Viewer APIs.


The Blazor PDF Viewer component supports different types of internal and external navigations.

Bookmark navigation

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

Blazor PDF Viewer Bookmark Navigation

Blazor PDF Viewer Thumbnail Navigation

Thumbnail navigation

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

Navigate to the URLs in a PDF file.

Hyperlink navigation in Blazor PDF Viewer control

Blazor PDF Viewer Table of Content Navigation

Table of contents navigation

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


Select and copy text

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

Blazor PDF Viewer Select and Copy Text.


Blazor PDF Viewer Search Text

Search text

Locate text easily in a PDF file.


Customization

Applying themes

Choose from eight stunning, built-in themes.

Blazor PDF Viewer Applying a Theme.


Blazor PDF Viewer Localization

Localization

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


Blazor PDF Viewer Code Example

Easily get started with the Blazor PDF Viewer using a few simple lines of C# code example as demonstrated below. Also explore our Blazor PDF Viewer Example that shows you how to render the pdf viewer component.

Blazor Components – 70+ UI and DataViz Components

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