• Font
  • Family
  • Foundry
  • Designer
  • Sample
  • Article
  • Help
Fontke.com>Article>Details

Managing XUID Arrays—Redux

Date:2015-08-27 15:10:16| News|Browse: 202|Source: Adobe Blogs|Author: Dr. Ken Lunde
  • Follow FontKe on Wechat to get Zcode
  • Scan the Qrcode to participate in the SVIP lottery
IntroductionTo follow up on my June 2011 article about managing XUID arrays i

To follow up on my June 2011 article about managing XUID arrays in CIDFont resources, which still conveys accurate information, it has come to our attention that the integer values for the second and subsequent XUID array elements should not exceed seven digits, meaning that 9999999 is the largest integer value that should be used. Integer values that exceed seven digits can result in some implementations treating the XUID arrays of different fonts within the same printing job the same, which affectsfont caching, and which can result in the wrong font being used to render some characters. This printing issue may happen even if the glyphs display correctly in the PDF file on screen.

Another solution is to simply omit the XUID array from the CIDFont resource header, which effectively disables font caching. For modern printers, font caching has little or no benefit.

Lastly, for those font developers who still include a UIDBase value in their CIDFont resource headers, it can be safely removed.In fact, I strongly recommend that it be removed.

0
  • Follow FontKe on Wechat to get Zcode
  • Scan the Qrcode to participate in the SVIP lottery
Relevant font foundry
Managing XUID Arrays—Redux Comments
Guest Please obey the rules of this website. Unclear?
Managing XUID Arrays—Redux Latest comments
No relevant comments