How many tokens are in one PDF page?

A normal A4 or letter-size PDF page often contains about 300 to 700 tokens. If you need one planning number, use 500 tokens per dense text page. It is useful for a rough estimate, but it is not a conversion rule.

Why one page has no fixed token count

A page can hold a title and two sentences or a compact legal clause with a table. Language matters too. Punctuation, numbers, code, OCR errors, headers, and repeated footers all change tokenization even when two pages look equally full.

Image-only pages contribute no text tokens until OCR turns the image into text. A noisy OCR result can then produce more tokens than a clean digital page.

A practical range

• Light page with headings: about 150 to 350 tokens.
• Ordinary report page: about 350 to 600 tokens.
• Dense legal, academic, or technical page: 600 to 1,000 tokens or more.

Multiply the page count by 500 for a first estimate. Then measure the actual file before choosing a context window or calculating API cost.

Measure the PDF, not the page count

The PDF Token Counter extracts the text locally and applies the GPT tokenizer in your browser. It also shows words and characters, making it easier to spot a scan with no usable text layer.

If the result is too large for your workflow, use the PDF Chunker rather than guessing where to split. Keep room for your prompt, conversation history, and the model’s answer.