OSX打印机纸张
cups使用PPDS文件来对每个打印机进行功能配置设定。用户可以通过修改PPDs文件来对每个打印机进行特殊配置。这里是一个例子。
每个打印机默认地支持若干的类型的纸张类型和大小，可能很长，在用户选择的时候会不太方便，那么可以通过修改PPDs文件来把这个列表缩短。
找到*DefaultPaperDimension,后面是锁支持的每个纸张大小的定义和说明，而且支持每种语言自己的文字说明。只要是在不需要的纸张类型前面加一个%，就可以了。
比如
*%PaperDimension Executive/Executive: "522 756"
*%PaperDimension HalfLetter/Statement:"396 612"
*%PaperDimension B5/JIS B5: "516 729"
......
看图对比
变更前的
变更后的
变更后可以使用cupstestppd对该PPDs文件进行检测。
添加自定义的纸张，一种方法，让用户在打印界面中自己定义但是是当前用户有效（当然也可以发布给其它用户，也可以做到本机登录用户有效， 参见com.apple.print.custompapers文件），或者变更PPDs这样可以本机全局有效，添加的时候，需要添加如下的信息
*PaperDimension Letter/Letter: "612 792"
*PageSize Letter/Letter: "
*PageRegion Letter/Letter: "
*ImageableArea Letter/Letter:
Letter的例子：
*PaperDimension Letter/Letter: "612 792"
*da.PaperDimension Letter/Letter: ""
*de.PaperDimension Letter/Letter: ""
*es.PaperDimension Letter/Letter: ""
*fi.PaperDimension Letter/Letter: ""
*fr.PaperDimension Letter/Lettre: ""
*it.PaperDimension Letter/Letter: ""
*ja.PaperDimension Letter/レター: ""
*ko.PaperDimension Letter/레터: ""
*nl.PaperDimension Letter/Letter: ""
*no.PaperDimension Letter/Letter: ""
*pt.PaperDimension Letter/Carta: ""
*sv.PaperDimension Letter/Letter: ""
*zh_CN.PaperDimension Letter/信纸: ""
*zh_TW.PaperDimension Letter/Letter: ""
*PageSize Letter/Letter: "
<</DeferredMediaSelection true /PageSize [612 792] /ImagingBBox null /MediaClass null >> setpagedevice"
*End
*da.PageSize Letter/Letter: ""
*de.PageSize Letter/Letter: ""
*es.PageSize Letter/Letter: ""
*fi.PageSize Letter/Letter: ""
*fr.PageSize Letter/Lettre: ""
*it.PageSize Letter/Letter: ""
*ja.PageSize Letter/レター: ""
*ko.PageSize Letter/레터: ""
*nl.PageSize Letter/Letter: ""
*no.PageSize Letter/Letter: ""
*pt.PageSize Letter/Carta: ""
*sv.PageSize Letter/Letter: ""
*zh_CN.PageSize Letter/信纸: ""
*zh_TW.PageSize Letter/Letter: ""
*PageRegion Letter/Letter: "
<</DeferredMediaSelection true /PageSize [612 792] /ImagingBBox null /MediaClass null >> setpagedevice"
*End
*da.PageRegion Letter/Letter: ""
*de.PageRegion Letter/Letter: ""
*es.PageRegion Letter/Letter: ""
*fi.PageRegion Letter/Letter: ""
*fr.PageRegion Letter/Lettre: ""
*it.PageRegion Letter/Letter: ""
*ja.PageRegion Letter/レター: ""
*ko.PageRegion Letter/레터: ""
*nl.PageRegion Letter/Letter: ""
*no.PageRegion Letter/Letter: ""
*pt.PageRegion Letter/Carta: ""
*sv.PageRegion Letter/Letter: ""
*zh_CN.PageRegion Letter/信纸: ""
*zh_TW.PageRegion Letter/Letter: ""
*ImageableArea Letter/Letter: "12.00 12.12 599.88 780.00"
*da.ImageableArea Letter/Letter: ""
*de.ImageableArea Letter/Letter: ""
*es.ImageableArea Letter/Letter: ""
*fi.ImageableArea Letter/Letter: ""
*fr.ImageableArea Letter/Lettre: ""
*it.ImageableArea Letter/Letter: ""
*ja.ImageableArea Letter/レター: ""
*ko.ImageableArea Letter/레터: ""
*nl.ImageableArea Letter/Letter: ""
*no.ImageableArea Letter/Letter: ""
*pt.ImageableArea Letter/Carta: ""
*sv.ImageableArea Letter/Letter: ""
*zh_CN.ImageableArea Letter/信纸: ""
*zh_TW.ImageableArea Letter/Letter: ""