Question 1

How to install RGhost and Ghostscript on Ubuntu?

Accepted Answer

First install Ghostscript via apt-get, then add the RGhost gem to your Ruby project. Refer to the wiki for detailed steps and dependency management to avoid common setup errors.

Question 2

RGhost or Prawn: which is better for PDF generation in Ruby?

Accepted Answer

RGhost excels at format conversion and EPS-based document creation using Ghostscript, while Prawn is a pure-Ruby library for programmatic PDF generation with more control over content. Choose RGhost if you need Ghostscript's multi-format support.

Question 3

How to batch convert PDFs to images with RGhost?

Accepted Answer

Use RGhost's conversion methods in a loop or script, specifying input PDF and output image formats. The library is optimized for larger documents, but test with your file sizes to ensure performance.

Question 4

Does RGhost support adding watermarks to PDF files?

Accepted Answer

RGhost primarily handles conversion and EPS templates; for watermarking, you may need to pre-process files with other tools or rely on Ghostscript commands, as it's not a core feature of the Ruby API.

Question 5

What are common errors when using RGhost with large documents?

Accepted Answer

Issues often stem from Ghostscript memory limits or system resources. RGhost is optimized for larger docs, but monitor performance and consider chunking files if conversions are slow or fail.

Question 6

Is RGhost actively maintained and compatible with newer Ruby versions?

Accepted Answer

Check the GitHub repository for recent activity; as a Ghostscript wrapper, updates might lag, so verify compatibility with your Ruby and Ghostscript versions to avoid breaking changes.

RGhost

What is RGhost?

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