Compare PDFs
Extracts text from two PDFs (in your browser) and highlights what was added or removed between them.
By The Paper Room Editorial Team — PDF Tools
Frequently asked questions
How does PDF comparison work?▼
The tool extracts the text content from both PDFs and runs a diff algorithm to highlight additions, deletions, and changes between the two versions. It works page by page for structured comparison.
Can it compare scanned PDFs?▼
Only if the scanned PDF has an embedded text layer (from OCR). The tool compares extracted text, not visual appearance. Pure image-based scans without a text layer will appear empty.
Does it show visual differences?▼
The current version performs text-level comparison, not pixel-level visual diff. It highlights which text was added, removed, or changed between versions — similar to track-changes in a word processor.