Certificate

There are various avenues and scopes for career in Documentary film production. If somebody gets certification in documentary production - first, one can do documentary production as a Freelancer and make tie up with many Government organizations and corporate companies and NGOs at National and regional level. Also, one can get jobs as Documentary film Producer, Director, Researchers and camera persons and other technical professional like video film editor and production managers. Also, many Multinational corporate companies and TV channels like Discovery channel, History channel, etc. In which you can seek commissioned programme and make documentary films for them. Here, the markets for your film would be international and national both.

Of course, a certificate is valuable for professional photography. But, for a career you need to develop your photography skills. In India or abroad, you may be able to become a successful photographer after gaining experience under the supervision of reputed photography professionals. After completing the course and gaining experience in professional photography, you may become a fashion photographer, wildlife photographer and many other. Many ad agencies hire professional photographers. Many of the national and international magazines hire professional photographers for permanent basis. National Geography and Discovery channel may be the options for you.

Read this answer as well: https://ask.shiksha.com/is-it-worth-to-pursue-a-certificate-course-in-non-linear-editing-from-distance-learning-in-india-and-why-qna-4392987. An Excerpt from the above written by me needs to be shared as an intro to the reply:1. Linear Editing is a thing of the past in this digital and technology-led age. Hence, it is the Non-Linear editing that remains the way video production is done for all forms i.e. films, documentary, TV serial or music videos etc. Even news reporting videos are also customized. The career prospects for a certificate course are not that high, even in India or Abroad. But, the condition in this skill and creativity, Innovation based job profile will decide the success of the candidate. If one is skilled enough to match the professional acumen of Degree or Master's degree holders in production skills, the job and career are going to be good. If there is a delay in getting the same course recognized and noted, the person has to work very hard and make some works to be shown as a portfolio. Career prospects are good, both in India and abroad.

Final Cut Pro is the globally acclaimed and used software or tool to edit and make movies/films. As we all know and acknowledge that in India, there is a great demand for quality video editing because most of the mass media or film making children are less exposed to the actual work they are required to do. FCP-If the candidate knows the know-how of the tool and possesses a certificate as well is a selling commodity for sure.
-Creativity
-Improvisation
-Quick Response Skills are the three major things needed in an FCP user. If these are present and the Final Cut Pro user is well-versed with the skills-shortcuts there are ample opportunities in production houses, news channels, filmmaking, local level production houses and educational Institutions, other than the ones teaching mass communication and media subjects, also demand people who are good at FCP because this is an age of MOOCs as well as virtual learning, smart classrooms have enhanced the demands for educational programmes. So this video editing software remains the winner all around. The certificate in FCP will certainly get one a job proving the skills and knowledge of FCP.