PDiff vs XKit Document Compare
PDiff
csci.deXKit Document Compare
xkit.ioSide by side
| Figure | PDiff | XKit Document Compare |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Document Comparison Software | 8.1 (#11) | 7.2 (#24) |
| Founded | 2009 | 2023 |
| Purpose | PDiff compares text in PDF documents across layout, formatting, and page-break changes and highlights deviations. | Compares Word, PDF, and text files to identify additions, deletions, and modifications. |
| Support | The maker invites trial users who want to continue to contact it for an offer for a full version tailored to their requirements. | The site lists [email protected] as its support contact. |
| Use cases | The maker describes use for quality assurance, regulatory compliance, contract review, legal documents, pharmaceutical packaging, and other business-critical document checks. | The maker lists contract review, content editing, version tracking, policy updates, academic revisions, technical documentation, translation verification, and proposal comparison. |
Plans
In their own words
PDiff
PDiff is desktop software for comparing PDF documents and identifying differences in layout, formatting and page breaks. It displays PDFs side by side, synchronizes extracted text with the pages and highlights deviations in both views. Reviewers can navigate differences, mark changes accepted, hide less relevant changes and add comments. Filtering and review tools include exclusion areas, page ranges, text-flow and table tools, replacement rules, comments and OK checkmarks.
PDiff can compare PDFs with DOC/DOCX, RTF, TXT, XLS and other common formats, converting non-PDF files through their native applications. Outputs include tabular, annotated and side-by-side PDFs, XML, CSV, PDiff project files and CLI return codes. PDiff Professional adds GUI batch processing and command-line operation. CSci Computer Science GmbH describes uses including quality assurance, regulatory compliance, contract and legal review, pharmaceutical packaging and technical documents. The software supports Unicode, including Chinese, Japanese, Korean, Arabic and Hebrew. The maker says processing is local and documents are not transferred over the internet. Business customers can request a free full-functionality trial; pricing for editions is on request.
XKit Document Compare
XKit Document Compare is a free web tool for comparing Word, PDF, and text files. It places original and revised documents side by side, highlighting additions in green and deletions in red. Word-by-word comparison can reveal small edits inside paragraphs. Users can upload files or paste text, including DOCX, DOC, text-based PDF, and TXT, and can compare different supported formats. The page says Mammoth.js extracts Word text and PDF.js extracts PDF text in the browser, so files are not uploaded for processing. XKit’s privacy policy says tool inputs, files, and processed data are not collected or stored, although anonymous website usage information and cookies may be used. The tool compares text rather than visual formatting and does not produce redline output. Scanned PDFs need OCR first; tables and lists become text, and documents over 100 pages may take longer.