Extract vocabulary from PDF & text

Paste an article or upload a PDF / Word document. We translate it and highlight unfamiliar words by your level — then you collect them into your Word Book. Limit: 10,000 word equivalents.

or

Your text

Review the extracted text, then choose the language to translate into.

word equivalents (trimmed to limit)

Your proficiency

We'll shade meaningful words in grey and yellow-highlight ones above this level for you to collect.

This may take a moment — please keep this tab open.

Highlighted vocabulary

Every content word is grey. Yellow = recommended for your level (pre-selected). Click any word to add or remove it from your collection.

selected

Generating illustrations and saving…

How Text Extract helps readers and students

Learners searching for “extract vocabulary from PDF” usually want unknown words from a real article, textbook, or homework — not a random word list. Word Catcher translates the passage, highlights terms for your level, and saves them next to photo vocabulary in one Word Book.

  1. Paste text or upload PDF, Word (.docx), or TXT.
  2. Choose source and target languages, then translate.
  3. Pick a proficiency tier, review highlights, and collect words.

Also try photo vocabulary or the Telegram bot for daily review.

Questions people ask

What is Text Extract?

Text Extract lets you paste text or upload a PDF, Word, or TXT file. Word Catcher translates the passage and highlights words you may not know yet based on your proficiency level, so you can collect them into your Word Book.

Which file types can I upload?

You can paste plain text or upload PDF, Word (.docx), TXT, or Markdown files. There is a word-equivalent limit per extraction to keep analysis accurate and fast.

How does proficiency highlighting work?

After translation, choose a proficiency tier from beginner to advanced. Word Catcher recommends unfamiliar terms for your level; you can click to select or deselect words before collecting them.

Do extracted words go into the same Word Book as photo words?

Yes. Collected Text Extract terms are saved into your language-pair Word Book alongside vocabulary from photos, so one place holds everything you are learning.