Windows版Ghostscript：如何让生成的PDF默认以纵向显示？

Hey Qumars, I’ve run into this exact frustration before when using GPCL6 (Ghostscript’s PCL converter) to generate PDFs—manually rotating pages after every conversion is such a waste of time! Luckily, there are a couple of Ghostscript-specific command-line tweaks you can add to force your output PDF to default to Portrait orientation automatically.

The Core Fix: Force Portrait Orientation Directly #

Add a PostScript command snippet to your existing command to override the page orientation. Here’s the updated command:

gpcl6win64 -dNOPAUSE -sDEVICE=pdfwrite -o %2 -c "<</Orientation 0>> setpagedevice" -f %1

Let me break down what each new part does:

• -c "<</Orientation 0>> setpagedevice": This executes a PostScript command that tells the pdfwrite device to use Portrait orientation (value 0). For reference, other orientation values are:
  • 1: Landscape (counter-clockwise 90°)
  • 2: Reverse Portrait
  • 3: Landscape (clockwise 90°)
• Make sure this -c parameter comes before -f %1 (your input file)—Ghostscript processes commands in order, so we need to set the orientation before loading the source file.

For Tricky Source Files: Add Fit & Lock Settings #

If your source PCL files have odd page dimensions that still cause cropping or misalignment, add two more parameters to force content to fit a standard Portrait page:

gpcl6win64 -dNOPAUSE -sDEVICE=pdfwrite -o %2 -dFIXEDMEDIA -dPDFFitPage -c "<</Orientation 0>> setpagedevice" -f %1

• -dFIXEDMEDIA: Locks the output page size to the Portrait dimensions we set, preventing the source file from overriding it.
• -dPDFFitPage: Scales the input content to fit perfectly within the Portrait page boundaries, no more chopped-off text or images.

I’ve used both of these commands successfully with stubborn landscape PCL files, so they should eliminate your need for manual page rotation entirely.

内容的提问来源于stack exchange，提问作者Qumars