Upload two PDF documents and instantly see the differences in their text content. Identify additions, deletions, and changes between document versions. Free, browser-based, no signup.
Document comparison is essential in legal, academic, and business workflows where multiple versions of a document are created and revised. Rather than manually reading both documents side by side, a diff tool automatically identifies every addition, deletion, and change — saving hours of review time and reducing the risk of missing subtle changes.
Our tool extracts the text content from both PDF files using PDF.js, then performs a line-by-line diff comparison. Lines present only in PDF A are marked as removed (red). Lines present only in PDF B are marked as added (green). Lines present in both are marked as unchanged.