groupdocs_comparison

With this extension you and your website visitors will be able to compare two versions of a Word document directly on your website. This is a convenient approach of comparing documents online, when several parties can see the differences between two revisions of a document at the same time.
Compare Word Documents Online

Once installed, you will be able to compare Word documents by uploading and embedding two versions of a document directly into your Magento web-pages. GroupDocs Comparison tool will merge the documents automatically and highlight differences between the two documents. This way you can compare any word processing documents online right from your favorite web-browser and without having to install the software that the documents were created in initially.
Document Formats Supported

With GroupDocs Comparison, you can compare literally any word processing files, including: DOC, DOCX, DOCM, DOT, DOTM, DOTX, RTF, ODT, ODS and OTT. In addition to that, you can also compare two revisions of a PDF document, Excel spreadsheet (XLS, XLSX, CSV), PowerPoint presentation (PPT, PPTX) and HTML document.
Key Features of the GroupDocs Comparison Extension

1. Documents embedded into web-pages are rendered using HTML5. Thanks to this, your web-site visitors won't need Flash or any web-browser plug-ins to view the compared documents right on your Magento web-pages.

2. Embedded documents are not converted to images, but rendered just like real text documents. This allows you, for example, to select and copy text right from the document embedded to a web-page; or you can search for a particular text (a word or a phrase) within the document.

3. To compare two versions of a document, neither you nor your website visitors need the original software that the documents were created in to be installed. Documents are compared online and can be viewed from a web-browser and from any web-enabled device.

4. Uploaded revisions of a document are automatically merged with the Change Tracking feature, showing you all the differences between the document versions you compare. Added text is highlighted with underlines and removed one - with strikeouts. This approach is quite similar to when you track changes in a document with MS Word app.

5. When comparing Word documents, you can merge the two revisions of a document and export them to a single DOC or DOCX file with the MS Word's Track Changes feature turned on. You can then edit the document offline by accepting or rejecting the changes in a document.

For more information on how to compare Word and other business documents online, please visit GroupDocs Comparison Homepage.
Installation and configuration documentation for the extension may be found here.