Assigning 'Tags' to documents will help you to locate required documents in a quick and efficient manner. 'Tag' is an user-defined keyword or label attached to document. 'Tags' allow users to classify document based on specific criteria, this kind of meta-data information helps in searching and faster retrieval of online content.
Zoho Docs provides a simple way to create and assign 'Tags' to your document. You can add multiple 'Tags' to the document for further classification. In addition, you can make use of 'Tag-As-Folder' option which allows you to organize multiple documents by project names, events, business,etc. When a 'Tag' is added to document, it will get listed in relevant folders.
Have a look at the video below,
Zoho Docs Tags Demo from Sathish on Vimeo.