When to compare PDFs
The most common scenarios: a client returned a "signed" contract and you want to verify nothing was quietly changed, you're reviewing two versions of a report and need to identify what was updated between drafts, a colleague sent a revised document and you want to see exactly what changed without reading the entire thing again, or you need to confirm a legal document matches the version that was approved before signing.
How to compare two PDFs free — step by step
- Open ihatepdf.cv/compare-pdfs — no sign-up required
- Upload the first PDF (original version) on the left panel
- Upload the second PDF (revised version) on the right panel
- Both documents display side by side with synchronized scrolling
- Scroll through both simultaneously to visually identify differences page by page
What to look for when comparing contract PDFs
- Text changes — words added, removed, or reworded in clauses
- Number changes — pricing, dates, quantities, penalty amounts, interest rates
- Layout changes — sections moved, pages added, or clause numbering shifted
- Signature presence — confirm signatures appear on the correct fields
- Subtle formatting — font changes, spacing adjustments that might indicate paragraph deletions
After comparing — edit the discrepancies
If you find unauthorized changes, use Edit PDF Text to correct the revised document back to the agreed terms. If certain sections need to be removed before redistribution, use Redact PDF to permanently destroy the sensitive content.
Frequently asked questions
Does the comparison tool automatically highlight differences?
The tool provides synchronized side-by-side viewing — scroll both documents together to spot differences page by page. This visual approach reliably catches even subtle layout and formatting changes that automated diffing can sometimes miss.
Are my documents uploaded to a server?
No. Both PDFs are rendered entirely in your browser. Nothing is uploaded anywhere.
Is there a page limit?
No. Compare PDFs of any length — the tool loads and renders both simultaneously.