Enhanced PDF Viewer by PlugMonkey

About

Enhanced PDF Viewer by PlugMonkey — Professional PDF Reader for Chrome

Replace Chrome's basic PDF viewer with a full-featured reader built on Mozilla's PDF.js engine. Enhanced PDF Viewer adds keyboard shortcuts, presentation mode, text-to-speech, annotations, dark mode, and smart printing — all processing happens locally in your browser.

What It Does

The extension replaces Chrome's default PDF viewer with an enhanced reader that keeps every feature you expect (text selection, search, download, print) and adds professional tools on top. Documents render with the same PDF.js engine used by Firefox, with custom optimizations for large files and smooth navigation.

Perfect for:

  - Students and researchers highlighting textbooks and tracking reading progress
  - Legal professionals annotating contracts and reviewing multi-page documents
  - Developers navigating long technical documentation with keyboard shortcuts
  - Business professionals presenting reports in fullscreen or theater mode
  - Accessibility users who need text-to-speech or high-contrast themes

How It Works

  1. Install and open any PDF in Chrome
  2. The extension automatically replaces the default viewer
  3. Use the toolbar, keyboard shortcuts, or touch gestures to read, annotate, and navigate
  4. All processing stays local — no uploads, no external servers

Key Features

  - Keyboard Shortcuts — Ctrl+Page Up/Down for page flipping, Ctrl+Home/End to jump to start or finish, number keys for direct page access, Ctrl+Shift+R to rotate, smart zoom cycling between fit modes
  - Presentation Mode — theater mode with elegant overlays or fullscreen for maximum screen space, click or arrow-key navigation, Home/End for instant positioning
  - Text-to-Speech — built-in voice synthesis reads documents aloud for hands-free review, proofreading, or accessibility
  - Annotations & Markup — highlight text, add comments and sticky notes, draw sketches, multiple color options
  - Reading Progress — visual progress bar, completion percentage, reading time estimates, bookmark sync across sessions
  - Theme System — light, dark, or system-matched themes with high-contrast modes for comfortable reading in any environment
  - Smart Zoom — intelligent cycling between fit-to-page, fit-to-width, and actual-size modes
  - Professional Print — page range selection, portrait or landscape, DPI quality control (150 draft / 300 professional), color options
  - Touch Gestures — swipe to turn pages, pinch to zoom, double-tap to magnify, touch-friendly targets with momentum scrolling
  - Smart Downloads — custom filename formatting with protocol validation
  - Error Recovery — graceful handling of corrupted files, network issues, and encoding problems with automatic fallbacks
  - Performance — progressive rendering, smart caching, background memory cleanup for large documents
  - Thumbnail Sidebar — visual page navigation for quick access
  - Document Outline — bookmarks and table of contents for structured navigation
  - Page Rotation — rotate pages for optimal viewing
  - Text Selection — copy text from any PDF document

About PlugMonkey

PlugMonkey builds tools for people who care about their online experience. The popup interface may also include links to other productivity tools developed by PlugMonkey for users who want to explore additional extensions. The extension may also contain a link to the PlugMonkey affiliate program (plugmonkey.xyz/affiliates/), where users can sign up to earn a commission by promoting PlugMonkey extensions. Learn more at plugmonkey.xyz

Legal & Attribution

This is an independent Chrome extension developed by PlugMonkey. Built on PDF.js by Mozilla Foundation, licensed under Apache License 2.0. All PDF processing happens locally in your browser — no documents are uploaded or transmitted to external servers.