Extract Key Info
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Extracting key information from a document means automatically identifying and pulling out specific fields and entities, such as names, dates, totals, and reference numbers, so the values you need are listed for you instead of being read off the page by hand.
At a Glance
5 Credits
Per Extraction
Gemini
Powered By
25 MB
Free File Limit
500 MB
Pro File Limit
Key Facts
LittlePDF Extract Key Info uses Google Gemini to pull specific fields from a document, including names, dates, totals, and invoice numbers.
The file is sent to Gemini over an encrypted connection, processed, and no copy stays with us; the tool runs server-side, not in the browser.
Each run costs 5 credits; free accounts get 500 credits per day (about 100 runs) with a 25 MB file limit, while Pro supports files up to 500 MB.
How to Extract Key Info in 3 Steps
Upload the document you want the key fields pulled from, such as an invoice, a contract, or a form.
Run the tool; the file goes to Gemini, which identifies and lifts out the relevant entities.
Review the extracted fields and correct anything the model misread before you use them downstream.
Why Extract Key Info with LittlePDF?
Key fields are surfaced for you, so you stop scanning a page line by line for the one number you need.
Gemini reads visually, so scanned invoices and photographed receipts give up their fields too, not just typed PDFs.
Values from across a long document are gathered into one result set instead of staying scattered.
Five credits against 500 free credits a day means roughly 100 extractions before any charge applies.
Features
Entity Detection
The tool identifies named entities such as people, organisations, dates, totals, and reference numbers, then lists the values it found rather than handing back the raw page.
Label-Aware Reading
Gemini reads the labels surrounding each value, which helps it distinguish an invoice number from a purchase order, or an issue date from a due date, instead of grabbing whatever appears first.
Works Across Pages
Fields are collected from the whole document, so a value on the first page and a total near the end both make it into the result, even on long files.
Frequently Asked Questions
Last updated: June 2026