Compare PDF
Side-by-side visual and semantic diff highlighting adds, removes, and edits.
See exactly what changed between two PDFs.
Compare PDF puts two revisions side by side and highlights every difference — added text in green, removed in red, edits underlined. Sable does both visual comparison (pixel overlay) and semantic comparison (paragraph-level text diff), so you catch moved sections that a naïve diff would miss.
- Batch processing
- API access
- Encrypted transport
- No file retention
What people use Compare PDF for.
See exactly what counterparties changed in a returned draft.
Diff old and new policies to write a changelog.
Spot layout regressions between two exported PDFs.
Compare paper versions between reviewer rounds.
Three steps, no learning curve.
Built for people who care about their documents.
Pixel overlay for layout changes; text diff for content changes.
Recognises paragraphs that were relocated, not just deleted.
Download a marked-up PDF you can email to reviewers.
Changes are grouped by page for easy skimming.
Your documents belong to you.
Sable is designed around a single principle: your files are yours. We never train on them, never sell them, and never keep them longer than we need to.