If you are looking for a version to distribute with or without modifications, you will need to carefully check the text of the AGPL to see if it is appropriate for your distribution case.Īs soon as you want to distribute Ghostscript in a closed source, proprietary environment OR wish to receive technical support from Artifex, you have to purchase an Artifex commercial license. If you are going to be using Ghostscript unchanged and won't be distributing it, then you can use the AGPL release. The Ghostscript AGPL license is for developers who wish to share their entire application source code with the open-source community as free software under the AGPL “copyleft” terms. Be aware that the AGPL is a complex document with many restrictions – you should read it thoroughly and if necessary take legal advice before relying on this. If you are prepared to abide by all the stringent requirements of the AGPL, then you may distribute the AGPL version in your application for free. But the licensing selection, AGPL Ghostscript or Artifex Ghostscript, is very important. So, instead of -r300 -dGraphicsAlphaBits=4 -dTextAlphaBits=4 for an equivalent effect (without the aforementioned issues) we'd recommend:Īre there any specific discussion forums related to Ghostscript you would recommend? Recommend using our "downscaler" feature. "modern" features (for example, edges of patterns are not properly anti-aliased, and various problems can occur mixing these options with PDF transparency). NOTE:The "GraphicsAlphaBits" and "TextAlphaBits", for historical reasons, remain in place, but have limitations and compatibility issues with certain To "smooth" everything, as Adobe Acrobat does by default, use: Note that some things that look like text may not actually be text, but may come from images or outlines in the input file. This should only be used if the output supports many shades of gray or colors (as all modern displays do), but when generating output for monochrome formats such as TIFF G4 (fax) output, this option can actually make text look worse. Can I use Ghostscript to post-process PS/PDFs?Īt a given resolution, such as screen resolution which is usually between 72 and 150 dots per inch, the most important option for improving text quality is: -dTextAlphaBits=4 See below for a list of places to look for additional help and information. Full documentation can be found on our documentation page. Ghostscript has some advanced features to mitigate such losses, but we don't have the room to discuss them all here. This means that extra 'meta' information in the same file (such as embedded files, or document outlines) may not be transferred across. Below is a list of Ghostscript rendering and conversion capabilities:įor each conversion, Ghostscript produces a new file that has (as far as possible) the same appearance as the old file. Even converting from PDF to PDF may lose some information. Different file formats have different capabilities for example, attempting to convert from a PDF into PostScript may lose some information. Yes, Ghostscript can output several different file formats, including PDF, PostScript, PCL and XPS. If you are uncertain as to whether you can use the AGPL version or require a commercial license, please contact us at Artifex Sales and we’ll be happy to help. More information regarding licensing may be found on the Artifex licensing page. Artifex is the exclusive licensing agent for Ghostscript. If you are looking for a version to distribute with or without modifications, you will need to carefully check the text of the AGPL to see if it is appropriate for your use case.Īs soon as you want to distribute Ghostscript in a closed source, proprietary environment, deploy it in a SaaS environment OR wish to receive technical support from Artifex, you have to purchase an Artifex commercial license. If you are downloading Ghostscript to evaluate it, use the AGPL release. Once downloaded, run the installer and follow the on-screen instructions.Ī word on which version to use and licensing: If you are unsure whether you want the 32bit or 64bit version, download the 32bit version.
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