https://creativemarket.com/texture.overlays/1898390-A4-One-Page-Mockup

A4 One Page Mockup is the perfect way to make the best impression. Soft structure style and very easy to use organized layers make this mockup very customizable to any designers. Mockup uses a strong baseline/document grid which will allow you to edit very easily.

Features:

• Quick and easy to customize smart objects
• Page Size – A4 – 210×297mm
• Baseline / Document Grid
• Accessories layers (Pen Cup, Pencil, Eraser, Plant, Pine Cone, Pen, Coffee, Phone, Paper Clips, -
• Sharpener, Pins, Ruler, Pencils, Envelope)
• Well Organized Layers and Grouped
• 3 Color Correction Filters
• 9 Wooden Backgrounds Included
• High Resolution: 3000×2200 px