Compare Two PDFs Side by Side
Load two PDF documents and view their pages side by side. Navigate through both simultaneously to visually spot any differences between versions.
Document A
Click or drop PDF A
Document B
Click or drop PDF B
How to Compare Two PDFs
- Upload Document A (the original or baseline).
- Upload Document B (the revised version).
- Use the ← / → buttons to navigate pages side by side.
- Adjust zoom scale for finer detail.
Features
- Side-by-side rendering of two PDFs
- Synchronised page navigation
- Load either or both PDFs — rendering starts as soon as one is loaded
- 3 zoom scales: 1×, 1.5×, 2×
- 100% browser-based via PDF.js — no upload required
Compare two pdfs: practical uses
Use compare two pdfs when you need a fast, clear, private result without creating an account. This page also supports related needs like compare two pdfs online, compare two pdfs free, compare two pdfs browser-based so you can choose the right workflow.
When it helps
- Best for: Combining, editing, converting, or protecting documents without installing desktop PDF software.
- Helpful details: Check file order, page range, output quality, and browser privacy before downloading the finished PDF.
- Next step: Move to another PDF action when you need compression, splitting, images, signatures, forms, or page cleanup.
For the next step, try Merge PDF Files Online, Split PDF, Compress PDF Online, Edit PDF.
Frequently Asked Questions
Does this highlight differences automatically?
No. This tool provides a visual side-by-side view for manual comparison. Automatic difference highlighting (pixel-level diffing) requires server-side image processing not available in the browser.
Can the two PDFs have different page counts?
Yes. The navigation goes up to the maximum page count of the two documents. When one document has fewer pages, its canvas will stop rendering at its last page.
