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Compare two PDF documents

Compare PDF Online

Upload two PDF files and compare their content quickly. Check page count differences, text changes, removed lines, added lines, and download a clear comparison report.

Upload Two PDFs Detect Changes Download Report

Review changes faster

Perfect for checking contracts, reports, invoices, proposals, assignments, and revised PDF versions.

Free Compare PDF Tool

Upload the original PDF and revised PDF to find text and page differences.

Original PDF

Upload the first PDF file.

Revised PDF

Upload the second PDF file.

0% Similarity Score
0 / 0 Page Count
0 Added Lines
0 Removed Lines

First Page Preview

Original PDF

Revised PDF

Text Difference Result

Removed / Original Lines
Added / Revised Lines

Why Use This Compare PDF Tool?

Comparing PDF versions helps you catch important edits, removed text, new clauses, and document changes.

Version Comparison

Compare original and revised PDF files to understand what changed between two document versions.

Text Difference

Detect added and removed text lines from selectable PDF content using browser-based extraction.

Report Download

Download a clean HTML comparison report with summary, page count, and difference details.

How It Works

Compare two PDF files in a few simple steps.

Upload PDFs

Choose the original PDF and the revised PDF from your device.

Compare Content

The tool extracts text, compares lines, checks page count, and calculates similarity.

Review Report

View added and removed lines, then download a clear comparison report.

Compare PDF FAQs

Common questions about comparing PDF files online.

Yes, this PDF comparison tool is free to use. Upload two PDF files and compare their text and page count.
This tool compares selectable text. Scanned PDFs may need OCR first before text comparison works correctly.
This version focuses on text differences and page count. It also shows first-page previews, but it does not perform pixel-level visual comparison.
No server PDF software is required. The comparison works in the browser using PDF.js from a CDN.
Some PDFs store text in unusual order or as images. For best results, use PDFs with selectable text.