Image-based PDF review
Compare PDFs that were scanned from paper, exported as images, or flattened by another system.
OCR PDF
Compare Scanned PDFs with OCR
Upload two scanned PDFs and review extracted text changes alongside visual page differences. Built for private document review when selectable text is missing.
Document 1Drop or click
Document 2Drop or click
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🗑️Files Auto-Deleted
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Scanned documents
More than a text-only diff
Text extraction fallback
OCR-assisted extraction helps surface wording changes when the PDF does not contain reliable selectable text.
Rendered page evidence
Red and green page regions make it easier to inspect stamps, signatures, moved blocks, and layout changes.
Practical use
Useful when documents are flattened
Many review workflows end with a PDF that no longer has clean text or revision metadata. Differino keeps the visual document in front of you while highlighting likely differences.
Signed agreement scans
Stamped PDF revisions
Flattened forms
Invoice or order scans
Legacy paper archives
Regulatory PDF packs
FAQ
Frequently Asked Questions
Can Differino compare scanned PDFs?+
Yes. Differino renders PDFs visually and uses OCR-assisted extraction for scanned or image-based documents, so you can review both page changes and extracted text changes.
What kinds of scanned PDF changes can I review?+
You can review changed pages, added or removed regions, signature and stamp differences, table changes, and text changes found through extraction or OCR.
Does OCR guarantee perfect text comparison?+
No OCR is perfect. Differino combines OCR-assisted text extraction with visual comparison so reviewers can inspect the rendered pages when scan quality affects recognition.
Is the scanned PDF comparison private?+
Yes. Uploads are transferred securely, processed for comparison, and handled with privacy-friendly analytics and plan-based cleanup.
How large can my scanned PDFs be?+
All users can upload PDFs up to 45 MB. For very large scans, compressing images before upload can improve processing speed.
Do I need to install OCR software?+
No. Differino runs in your browser with a background worker for rendering, extraction, OCR fallback, and visual comparison.
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Sign up. No credit card required. Your first comparison is free.