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Upload two Word documents or searchable PDFs. Review the changes for free.

DOCXPDF
DOCXPDF

Both files must use the same format.

Text and DOCX comparison supports 10 languages. Searchable PDF comparison is in Early Access; review coverage warnings. View supported languages.

Details

Compare text, including text in tables. Layout, images, and formatting are not compared. Searchable PDFs only.

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IN CHATGPT

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In ChatGPT, we make it easy. Add Redline in ChatGPT. Upload a Word document or searchable PDF, or paste text, let AI draft the revision, and ask Redline to show you what changed.

  • One prompt in ChatGPT: Say “Use Redline to show me what changed” after AI edits your file.
  • Instant review link: Open a private comparison link right away without leaving your workflow.
  • Continue human review: Save eligible comparisons to your linked Redline workspace to review changes and use your approval workflow.

Add Redline in ChatGPT

File comparison requires ChatGPT to provide accessible file URLs. When those are unavailable, Redline can compare the complete text; formatting and page layout are not compared in text mode.

ChatGPT + Redline DOCX & PDF
DOCX Service-Agreement-v1.docx Uploaded original

Update payment terms to Net 15 and change the renewal notice window to 60 days.

I’ve updated Section 4 (Payment Terms) and Section 9 (Renewal Notice). Here is the revised agreement:

DOCX Service-Agreement-v2-revised.docx Revised by AI

“Use Redline to show me what changed”

Redline compared Original vs. Revised

Invoices are payable within thirty (30) days fifteen (15) days of receipt, with 30 days’ 60 days’ prior written notice for renewal.