Compare PDF
Compare two PDF files side by side and highlight visual differences.
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Normal limit: 80 MB. Hard limit: 100 MB per file.Drag & drop files here or click to browse
Compare PDF
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About Compare PDF
Perform side-by-side visual and structural difference analysis between two versions of a PDF document. Automatically detect modified paragraphs, replaced graphics, deleted lines, and shifted page layouts.
How to use Compare PDF
Add your file
Choose a file or drag it onto the upload box. We check that the file type and size are supported.
Pick your options
Change the settings shown next to the file if you need to. The defaults work for most files.
Download the result
Click the main button, then download your new file. Check it before you share or submit it.
What it does
- ✓Pixel-level visual diff highlighting changes in contrasting overlay colors
- ✓Synchronized side-by-side dual-pane scroll viewer for rapid inspection
- ✓Detects subtle font substitutions, formatting shifts, and deleted text clauses
- ✓Runs completely in browser memory without uploading sensitive contracts or plans
When to use it
Verify that counterparty amendments match negotiated terms without unapproved clause modifications.
Inspect packaging artwork and brochure revisions for accidental image drift or color plate errors.
Compare CAD drawing exports and technical schematics between project revision milestones.
Identify updated regulations and modified requirements between compliance document versions.
Tips
- •Ensure both PDF documents have matching page dimensions and orientations for optimal alignment.
- •Use the diff sensitivity slider to filter out minor antialiasing artifacts from actual text changes.
- •Review high-risk sections (e.g., pricing tables and indemnity clauses) carefully in side-by-side view.