AFPL Ghostscript 8.53 is the fourth stable release following 8.50.
This release is mostly the same as 8.52, but a late report of build problems on Window64/AMD64 and a potential SEGV in DEBUG mode mandated this release.
The 8.53 release also includes a rendering performance enhancement for PDF's with transparency (10x to 90x on files with many small transparency regions/groups).
The 8.52 features included in 8.53 are:
Contains numerous bug fixes and improvements, particularly in the area DeviceN (spot color) handling and the PDF interpreter.
The pdfwrite device can now create PDF/X-3 compliant documents using the lib/PDFX_def.ps prefix approach. See doc/Ps2pdf.htm documentation.
A Beta version level 2 Postscript output device, ps2write, which generates high-level PostScript including text and images and graphics.
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