WordPopupLook up words in a PDF.
Keep reading.
Upload a PDF and look up unfamiliar words without opening another tab. See definitions, pronunciation, synonyms, and examples while you read.
Your PDF stays in your browser.
Read your PDF.
Look up words.
Keep going.
No copying words into Google. No switching between your PDF and a dictionary tab.
Upload your PDF
Open WordPopup and upload the PDF you want to read. The file stays in your browser.
Select a word
Find an unfamiliar word and select it directly in the PDF reader.
Understand it
See the word's definition, pronunciation, synonyms, and examples when available.
Save it
Save useful vocabulary so you can come back to it later.
Keep reading
Return to your PDF and continue reading without losing your place.
A dictionary that stays out of your way.
Quick word lookup
Look up unfamiliar vocabulary while reading instead of leaving your PDF to search for a definition elsewhere.
Understand words in context
See definitions, pronunciation, synonyms, and examples so you can understand more than just a single dictionary definition.
Build your vocabulary
Save words that are useful or unfamiliar and come back to them later instead of forgetting them after you finish reading.
Export your words
Download your saved vocabulary as a TXT file for revision, studying, or keeping your own word list.
Useful for the things you already read.
Academic papers
Read research papers and technical material without repeatedly leaving the document to look up terminology.
Books and ebooks
Keep difficult vocabulary from interrupting your reading flow. Look up a word and continue from where you left off.
Language learning
Turn the PDFs you already read into vocabulary practice by saving unfamiliar English or German words as you encounter them.
You shouldn't have to stop reading to understand a word.
Looking up a word normally means leaving your document, opening a dictionary or search engine, typing the word, finding the answer, and then returning to your PDF. WordPopup puts that process closer to the text you're already reading.
Upload your PDF, select a word, understand it, and continue reading. When a word is worth remembering, save it and build your own vocabulary list as you go.
PDF dictionary questions.
Can I look up words in a PDF?
Yes. WordPopup lets you upload a PDF and select words to look up their meanings while you read.
Does WordPopup upload my PDF to a server?
No. Your PDF stays in your browser while you use the PDF reader on WordPopup.
What information can I see for a word?
Depending on the dictionary result, WordPopup can show a definition, part of speech, pronunciation, synonyms, and example sentences.
Can I save words from a PDF?
Yes. You can save unfamiliar words while reading and review your saved vocabulary later.
Can I download my saved vocabulary?
Yes. Your saved words can be exported as a simple TXT file for revision.
Do I need to install the Chrome extension to read a PDF?
No. You can use WordPopup's PDF reader directly on the website. The Chrome extension is useful when you want the same dictionary experience while reading webpages.