Flatten an existing PDF with Photoshop
Exploitation Account
Last Update 8 months ago
Open the PDF File in Photoshop
When prompted to import the PDF set the width and height to the correct size and set resolution to 100 Pixels/inch.
Please note that if the wall is bigger than 500cm both the size, height and resolution must be at scale. For example: 600x250cm becomes 300x125cm at 200 Pixels/inch etc.

After importing visually check the file and save the file again as PDF.