Distiller 6.0 was part of the suite. Notably, it was the last version to support classic Mac OS (OS 9) before Apple’s transition to Mac OS X matured, and one of the first to fully embrace Windows XP.
Version 6.0 solidified Adobe's commitment to industry standards like PDF/X. PDF/X is a subset of the PDF ISO standard specifically designed for print exchange. Distiller 6.0 made it easier to create PDF/X-1a compliant files, which require all fonts to be embedded, all images to be CMYK, and no encryption. This reduced the number of errors sent to print bureaus significantly. Adobe Acrobat Distiller 6.0
Distiller 6.0 allowed users to customize these presets extensively. Users could specify exactly how images were downsampled (using Bicubic, Subsampling, or Bilinear methods) and determine the compression levels (ZIP or JPEG) for color, grayscale, and monochrome images separately. Distiller 6
: Developers can automate Distiller using OLE automation (ActiveX/COM) on Windows or AppleScript on macOS to handle large volumes of documents. PDF/X is a subset of the PDF ISO