Follow these steps and learn how to change document properties panel. The document properties is also known as metadata that describe the details about the file. For example: Author, Title, Subject, Category, Company, Keywords, etc. Find where is the panel custom edit for document properties in Microsoft Word 2010. Show the properties dialog box and editing. You can change Title, Subject, Author, Company, Category, Keywords, Comments etc.
Step 1: Click File.
Step 2: Click Info > click Properties > click Advanced Properties.
Step 3: Select Summary tab > Make Changes > click OK.