Hello, I have checked out the mentioned detail regarding web development work and I can help you in your existing project by adding small addon for renaming files and pdf viewer.
I do have 6+ years of experience in Core PHP, Cake PHP, Laravel, Yii, Codeigniter, WordPress, CSS, Javascript, MySQL, C Programming, Mongo DB etc.. Please share the project details and kindly share your feasible time for discussion.
Rest you can check my profile to get a better idea of my services. https://www.freelancer.com/u/w6d
I am fully available to work on this task. Please provide an opportunity to have a real-time conversation with you at here.
Looking forward to hearing a positive response from your end!
Note: The amount mentioned here is just a placeholder value; I can tell you exact time and cost required only after having a detailed discussion with you over your requirements