To enable the ADPDF9.PPD (PostScript Printer Description) feature on a Mac for use with Adobe InDesign, you must manually install the PPD file into a specific folder within the InDesign application directory. This process allows you to customize page options—such as custom page sizes—when printing to a PostScript file or using the Print Booklet feature. Installation Steps for Mac
Once you've downloaded the Adpdf9 Ppd installer file, follow these steps to install the driver on your Mac:
Introduction
Locate InDesign Presets: Open your Finder and navigate to your InDesign application folder, usually located at /Applications/Adobe InDesign [Version]/Presets/.
Modern versions of macOS and Acrobat have moved away from the traditional "Print to PDF" workflow in favor of "Export to PDF". However, for legacy workflows or complex imposition tasks (like creating booklets with proper duplex alignment), the ADPDF9.PPD file remains essential. Without it, you may find that page customization options in InDesign's print dialog are greyed out. How to Install ADPDF9.PPD on Mac Adpdf9 Ppd Download Mac
Benefits of Using Adpdf9 Ppd on Mac
Some users search for “Adpdf9” as a virtual PDF printer for Mac. Note that macOS has a built-in PDF creator (no driver needed). To enable the ADPDF9
If you need step-by-step screenshots, let me know. Hope this helps others avoid the malware traps.