Plain Tools

Compare PDF Files

Compare two PDFs with local text extraction and highlight differences page-by-page. Processing stays in your browser and files never leave your device.

Before you start

Upload

Upload two PDF files. The first is treated as the base version and the second as the updated version.

Result

Run comparison to view side-by-side text differences, optional page previews, and download an HTML report.

Local processing

Processing runs in your browser session. Files are not uploaded by default.

Limitations

This is a best-effort text diff. Visual-only layout changes are not detected unless extracted text changes.

Offline text-based PDF diff
Compare extracted text from two PDFs locally. Highlighted changes stay in your browser, with no upload step.
Choose two PDFs
Upload two PDF files to compare extracted text changes.

PDF A (base)

Drop first PDF

Base version

Click or drop files to continue

PDF B (updated)

Drop second PDF

Updated version

Click or drop files to continue