In Adobe Acrobat,
1. File->print.
2. Select the ‘poster’ button.
3. fill in the sclae.
4. Select the standing or portret printing option.
Print posters and banners using Acrobat or Reader
https://helpx.adobe.com/acrobat/kb/print-posters-banners-acrobat-reader.html
How to avoid Margin:
