Below is a guide for both scenarios.
Some software uses EPK as a proprietary compressed format. How to Convert LG TV EPK Files epk file converter
This is a rare settings file created by Epson Print Layout software. It stores print settings (paper size, orientation, color adjustments). You cannot convert it to PDF or JPG directly. Below is a guide for both scenarios
If a client or artist sent you an "EPK," they likely shared a (Dropbox, Google Drive) or a ZIP folder . There is no conversion process because the contents are already in usable formats (PDF, JPG, MP4, DOCX). " they likely shared a (Dropbox