Zovo Document Compare

Compare two documents for differences and get a word-level redline PDF, a change list and a tracked-changes Word file.

Zovo Document Compare compares two versions of a document, such as a contract, a lease, a policy or a manuscript, and reports each word that changed. Paste both versions or upload them as Word .docx, text PDF or .txt files. You get a redline PDF with deleted words struck through in red, inserted words underlined in blue and a change number in the margin, an Excel list of all changes with the old and new text and the paragraph, and a Word file with real tracked changes that you can accept or reject. Changes that touch numbers, negations such as "not", and words such as "shall" and "may" are flagged as material so a small but important edit is not missed.

What it does

Word-level redline: paragraphs are matched first, then the words inside each changed paragraph
Each changed word is listed, including a changed number, "shall" to "may" or a deleted "not"
Material flags for numbers, negations and modal verbs
Moved paragraphs are detected and shown as moves, not as a deletion and an insertion
Redline PDF (full document or changed paragraphs only), Excel change list and a Word .docx with tracked changes
Reads pasted text, Word .docx, text PDFs and .txt files, up to about 200 pages per document
Text in Hindi and other Indian scripts, Arabic, Hebrew, Thai, Chinese, Japanese and Korean prints correctly in the PDF

Try asking

“Compare these two versions of the clause and show me every change: (paste version 1) and (paste version 2)”

“Compare contract-v1.docx with contract-v2.pdf and give me a redline”

Limitations

Scanned PDFs and images are not read; paste the text or upload a .docx or a text PDF
Compares the main text only: headers, footers, footnotes, comments and automatic list numbers in Word files are not compared
Formatting changes (bold, font, layout) are not reported; only the words
Up to about 600,000 characters (about 200 pages) per document
Scripts without a bundled font (for example Georgian and Armenian) print as ? in the PDF; the Excel and Word files keep them
Not legal advice; a person should review the redline

Add it

ChatGPT: once Zovo Document Compare is approved, add it from the ChatGPT plugin directory.

Claude: go to Customize > Connectors > Add custom connector and enter https://text-compare.zovo.one/mcp. No sign-in is needed. Once Zovo Document Compare is listed in the Claude connector directory, you can add it from there too.

Other MCP clients can connect to the same endpoint: https://text-compare.zovo.one/mcp