Compare Any Two Documents. Format Doesn’t Matter.

Upload any two files—PDF, Word, or images—and let AI detect every insertion, deletion, and modification. Side-by-side diff view with page-level precision. No file conversion required.

Cross-format comparison — PDF vs Word, Image vs PDF, any to anyDetects text, font, layout, seal, and handwriting differencesSide-by-side diff view with page-level precision in seconds

Upload Original File

PDF, Word, PNG, JPG, BMP, TIFF (max 50MB)

Upload Modified File

PDF, Word, PNG, JPG, BMP, TIFF (max 50MB)

Your file is transmitted over encrypted connections. It is kept for 30 days for download, then permanently deleted from our servers. Files are isolated by account. Only you can access your own files.

How It Works

Upload Two Files

Drop the original and modified documents. Works with PDF, Word, or images — any format combination.

AI Compares Everything

Our Vision AI aligns both documents and detects every insertion, deletion, font change, and layout shift.

Review Differences

Side-by-side diff view highlights every change with page-level precision. Download the comparison report.

Frequently Asked Questions

Can I compare a scanned PDF against a native Word document?

Yes. The AI extracts text coordinates from both document layers and performs cross-format logical alignment. You do not need to convert files beforehand—upload the scanned PDF and the Word draft directly.

What types of differences does the tool detect?

It detects text insertions, deletions, and modifications. Additionally, it can identify formatting-level differences including font family changes, font size adjustments, seal/stamp discrepancies, and full-width vs half-width character substitutions.

Is my document data stored after the comparison?

Your files are processed securely and the comparison results are available for 30 days. After that, all document data is automatically purged from our storage. We do not use your documents for any purpose other than the comparison you requested.

How many credits does document comparison cost?

Credit consumption depends on the total page count of both documents. Each page costs 10 credits. For example, comparing a 3-page PDF against a 5-page Word document consumes 80 credits (8 pages × 10). New users receive free credits upon sign-up.

Can I download the comparison report after reviewing differences?

Yes. The Baidu-powered comparison engine generates a downloadable PDF report highlighting all detected differences. The report is available for 30 days alongside your comparison results. You can also share the report URL directly.