Analyze single PDFs or compare two documents to estimate word counts and page lengths
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Our comprehensive Book Length Calculator and Comparison Tool helps authors, editors, and publishers analyze document length in multiple ways:
Calculate word count and estimated page length for a single document in three standard book formats:
Compare two PDF documents to see:
Plan your manuscript length and compare draft versions to track changes in content volume.
Estimate production costs by calculating final page counts for different book formats.
Compare document versions to quantify editing changes and track progress.
Check assignment length requirements and compare different versions of papers.
Our tool provides highly accurate word counts by analyzing the actual text content of your PDF. For very large documents (100+ pages), we analyze a representative sample of pages and extrapolate the results to maintain performance while preserving accuracy.
Our tool works with most standard PDFs including:
Note: Scanned PDFs (image-based) without selectable text cannot be analyzed.
Yes! All processing happens in your browser - we never upload your documents to our servers. Your files remain completely private on your computer.
Different book formats use different:
These factors affect how many words fit on a page. Our tool uses industry-standard word-per-page estimates for each format.
Typical word count ranges:
Understanding your book's length can help with publishing decisions:
Our tool uses PDF.js, a Mozilla-developed JavaScript library for PDF processing, to extract text directly in your browser. This ensures: