Description
Enhance your reading comprehension with the Instant Multilingual PDF/HTML/TXT Dictionary, a Chrome extension designed for quick and easy word definitions. This tool allows users to define words or phrases on any PDF, HTML, or TXT page with just two clicks, even for local documents. The extension offers multiple ways to access definitions: by clicking a floating icon, using a customizable shortcut (Alt+Shift+Z by default), or through the right-click context menu.
For PDF users, the extension provides robust support. If tooltips cannot be displayed directly within PDFs, such as in Chrome's built-in PDF viewer, a popup window automatically opens to show the definitions, ensuring a seamless experience. This fallback mechanism makes it effective even on complex documents.
The extension is highly customizable, offering several key options. Users can tailor keyboard shortcuts to fit their workflow, select from various definition providers, including the versatile ChatGPT, and configure the appearance and functionality of the popup window. A 'Search the web' link is also provided for deeper exploration of terms. ChatGPT can be used as a backup definition source, requiring registration at chatgpt.com if necessary.
Advanced features include the 'CSP Page Pronunciation' option, which enables word pronunciation on Content Security Policy (CSP) protected pages like github.com, though it is initially disabled and requires user activation. The extension supports a wide array of languages for definitions, including Arabic, Chinese, French, German, Spanish, and Vietnamese, among many others.
Recent updates have introduced search history for easy retrieval of past definitions, a selection icon for instant translation, and improved reliability. The popup window system has been enhanced with keyboard shortcut support for recursive lookups, resizable windows with position memory, and fixes for context menu errors. Code quality and user support have also been modernized, with improved tooltip visibility and a direct support hub link.
It's important to note that while the extension supports native PDF formats and Chrome's built-in viewer, it does not support protected or scanned documents. For local document access, users must enable the 'Allow access to file URLs' option in Chrome's extension settings.
Instant Multilingual Dictionary's Core Features
Define words on PDF, HTML, and TXT pages
Two-click definition access
Customizable keyboard shortcuts
Multiple definition providers including ChatGPT
Automatic PDF definition fallback to popup window
Popup window configuration options
Web search link for extended information
ChatGPT as a backup definition source
Word pronunciation on CSP protected pages
Supports numerous languages for definitions
Search history functionality
Selection icon for instant translation
Resizable fallback popup windows with position memory
How to use Instant Multilingual Dictionary?
Install the extension from the Chrome Web Store
Navigate to a PDF, HTML, or TXT page
Select a word or phrase you wish to define
Click the floating icon, use the shortcut, or right-click to define
View the definition in a tooltip or popup window
Customize settings like shortcuts and definition providers in the extension options
Instant Multilingual Dictionary's Use Cases
- Quick Word Definitions
- PDF Document Comprehension
- Multilingual Reading Aid
- Customizable User Experience
- Enhanced Online Learning
- Local File Dictionary








