Hello @Abhi, welcome to the MongoDB Community forum!
MongoDB data in a document can be upto maximum size of 16 Megabytes. A resume’s text is likely to be few (less than 100) kilobytes only, if stored as string (or text) data type. In case you are storing the resume document as a PDF or DOCX file, it is still going to be about few hundred kilobytes. So, you can store the resume as text with “String“ data type and the PDF/DOCX as “Binary data” within the document itself, along with other data like name, address, phone, email, etc. See MongoDB BSON Types.
There is also an option store large document files, files greater than 16 MB size, in MongoDB GridFS (see this post for more details Process of storing images in MongoDB).