---
title: "Changing Mac Installl Packages to include drivers that default to duplex printing"
slug: "changing-mac-installl-packages-to-include-drivers-that-default-to-duplex-printing"
updated: 2024-03-19T12:15:20Z
published: 2024-03-19T12:15:20Z
canonical: "kb.pharos.com/changing-mac-installl-packages-to-include-drivers-that-default-to-duplex-printing"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.pharos.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changing Mac Installl Packages to include drivers that default to duplex printing

How to change Mac installation .dmg packages to default to duplex printing

---

There is a way, but it's driver dependent. You can change it by opening the .ppd file from the .dmg. This builds on the answer below. [How to create a Customized Pharos Uniprint Popup Package for macOS](/v1/docs/how-to-create-a-customized-pharos-uniprint-popup-package-for-macos)

Once that package has been built, you would change the .ppd file, as long as the option is there inside the driver, to accomodate duplex printing by default. Here's an excerpt from [http://www.cups.org/doc-1.1/sum.html#2_1](http://www.cups.org/doc-1.1/sum.html#2_1) Printing On Both Sides of the Paper The -o sides=two-sided-short-edge and -o sides=two-sided-long-edge options will enable duplexing on the printer, if the printer supports it. The -o sides=two-sided-short-edge option is suitable for landscape pages, while the -o sides=two-sided-long-edge option is suitable for portrait pages: lp -o sides=two-sided-short-edge filename ENTER lp -o sides=two-sided-long-edge filename ENTER lpr -o sides=two-sided-long-edge filename ENTER The default is to print single-sided: lp -o sides=one-sided filename ENTER lpr -o sides=one-sided filename ENTER

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