When applying for a job, it is always best to use both your resume and your LinkedIn profile. Most employers and hiring managers will want to see both before interviewing you. To make sure your LinkedIn profile is seen, include the link to it in your resume. Your LinkedIn profile should offer a slightly different version of the one already on the resume.
Think of it as a virtual handshake - you want to get the recruiter interested and asking for your resume. Too much information can give recruiters the opportunity to say no, so be sure to include just enough to get them interested. Your resume and LinkedIn profile should work together and tell the same story, just in different ways. LinkedIn will require some adaptations, since you'll want to tell a specific story, but not to the same extent as your resume.
It is important to remember that your resume and LinkedIn profile are different because one is a document and the other is a professional social media profile. A lot of people want to know which is more important - the resume or the LinkedIn profile? The degree of formality in its structure and writing is also an important difference between a resume and a LinkedIn profile. While they are both important job search tools, they serve slightly different purposes and are read by slightly different audiences under different conditions. To get better results in the online space, you should differentiate your LinkedIn profile from your resume.
You can make changes to your resume at any time, but this won't replace changes you've already submitted elsewhere.