WordPress Customization

Dear Freelancer. The is a project to customize a Wordpress theme for Museum / Digital Archive with digital objects (PDF / JPG / MP4 / and many other formats) The wordpress template is a commercial theme for Museum and I need to add some features to host my digital objects like: - Input fields for each digital object; - Drag and drop feature for upload a digital object; - Process the digital object to be accessed by the user at the front end; - Generate a jpg thumbnail and attach to digital object item; - Generate a watermark over every image; - Create a modal with a PDF / JPG / Video viewer depending the file format selected by the user; - Option to upload more than one digital object on every item; - Extract text from PDF and add to database to searchable; - Add a Elastick search plugin; - Import data with a cronjob from another database I have with information already; - Add option to creat a view later on every item; - Hide a Item from the public view but keep it at the admin side; - Create a batch mode to make it public or make it private; - Create a contact form to request a download Image (or digital Item) - Create a digital delivery of this requested files for the logged user - Add a facial recognition - aws rekognition API to recognize people on JPG images uploaded to the website; More requests can be explained during the project. Portuguese speaking are preferred.;