Non-destructive editing in Photoshop to resize : layer masks, clear cutouts, adjustment layers
images to 300dpi, change mode to CMYK. Images resized. Use vector graphics and text
Use stylesheets and master pages, headers & footers.
Batch process actions in Photoshop to resize images to 300dpi, chnage mode to CMYK. for print, RGB & 72 dpi for web
Add Interactivity buttons, navigation & Multimedia - audio / video / animation
Use professional conventions - CMYK, 300dpi, registration marks & bleed. Export whole project with fonts and assets (media).