Yes. All processing happens entirely in your browser. PDF files are never uploaded to any server — your documents stay 100% private.

Can I compare scanned PDFs?

The tool works best with text-based PDFs. Scanned image-only PDFs may show limited differences since text extraction depends on embedded text layers.

Yes, completely free. No sign-up, no watermarks, no usage limits. Compare as many PDFs as you need.

FREE TOOL

Compare PDF

Compare two PDF files side-by-side and highlight text differences instantly — all in your browser, no upload needed.

Why Use AFFLIGO?

100% Private

Everything runs in your browser. No files are uploaded to any server.

Side-by-Side View

See both documents simultaneously with highlighted differences.

Instant Results

Differences are highlighted in real-time as you upload.

Read the Guide

More PDF Tools

Step 1

Upload PDFs

Select or drag two PDF files you want to compare.

Step 2

Compare

The tool instantly compares both documents side by side.

Step 3

View Differences

See highlighted differences and download the report.

How does PDF comparison work?

Upload two PDFs and the tool highlights differences between them side by side.

What differences are detected?

Text changes, additions, deletions, and formatting differences are highlighted.

Is comparison private?

Yes, all processing happens in your browser. No files are uploaded.

Can I compare large PDFs?

Yes, but very large files may take longer to process.

Can I download the comparison?

Yes, download the comparison report as a PDF.