Who counts words in a PDF
Translators quote per word, and clients send PDFs. Students face word limits, and the submission is a PDF. Editors, lawyers billing by document length, and writers checking a manuscript against a call for submissions all hit the same wall: PDF readers don't show a word count, and the workaround — select all, paste into a word processor — mangles formatting and takes minutes. This tool does it in seconds: drop the file, read the numbers.
What gets counted, and how
The text layer of every page is extracted with pdf.js — Mozilla's PDF engine — in a background thread, and the counting happens instantly on the result: words, characters with and without spaces, pages, and an estimated reading time at a typical 200 words per minute. Character counts matter more than they used to; plenty of forms and abstract submissions limit characters rather than words, and per-character billing is standard in some translation markets.
The scanned-PDF caveat
A scanned document is a photograph of a page — there are no words in the file, only pixels shaped like words, so the count will honestly come back as zero. The quick test: if you can't select text in a normal PDF viewer, it's a scan. The site's OCR tools can turn scans into text; for digitally created PDFs — exported from Word, generated by software — the counts here are exact.
And because a word count usually gets requested for confidential material — unpublished manuscripts, legal documents, client files — the tool runs entirely in your browser. The PDF is parsed on your machine and never uploaded; there's no account and no cap on how many documents you check.