Frequently used

Compare PDFs

Compare the extracted text of two PDF files.

Free No signup Local browser processing

How it works

Choose the first PDF as the reference document and the second PDF as the version you want to compare against it.

02

Confirm that both PDFs contain selectable text. Scanned image-only pages need OCR before a text comparison can be meaningful.

03

Run the comparison. The tool extracts text from both files and compares the resulting text content.

Guide

What this tool does

Compare the selectable text extracted from two PDF files and expose textual differences for review.

Typical uses

Check whether a revised contract changed wording.
Compare two exports of a report or policy before approval.

Detailed step-by-step guide

Choose the first PDF as the reference document and the second PDF as the version you want to compare against it.
Confirm that both PDFs contain selectable text. Scanned image-only pages need OCR before a text comparison can be meaningful.
Run the comparison. The tool extracts text from both files and compares the resulting text content.
Review reported differences together with the original PDFs, especially around tables, columns, headers, and line wrapping.

What this tool can do

Compares two PDFs in one workspace.
Uses extracted textual content rather than file size alone.
Leaves both source documents unchanged.

Tips for this tool

Use text-based PDFs for the best comparison.
Treat layout-only changes separately because text extraction does not represent every visual difference.

Privacy and processing

While using Compare PDFs, this published version performs the supported document operation in your browser and does not send the document contents to an external conversion engine. Anonymous usage counters may record activity, not the document contents.

Important limitations

Image-only PDFs may appear empty until OCR is used.
Text extraction order from multi-column or complex layouts can differ from the visual reading order.

FAQ

Frequently asked questions

What is Compare PDFs best used for?

Check whether a revised contract changed wording. Compare two exports of a report or policy before approval.

What should I check before using Compare PDFs?

Use text-based PDFs for the best comparison. Treat layout-only changes separately because text extraction does not represent every visual difference.

What are the limits of Compare PDFs?

Image-only PDFs may appear empty until OCR is used. Text extraction order from multi-column or complex layouts can differ from the visual reading order.