获取PostScript文档的页面大小 [英] Getting the page sizes of a PostScript document

问题描述

我想通过简单的程序或shell脚本获取PostScript文档每一页的页面大小。

I want to get page size of each page of a PostScript document in a simple program or shell script.

是否有任何程序或库可以获取该页面大小。 （类似于pdfinfo，但处理PostScript）

Is there any program or library that can get the page sizes. (Like pdfinfo, but dealing with PostScript)

推荐答案

毫无疑问，有一些程序可以使用，但是您可以尝试使用Ghostscript：

No doubt, there's some program for that, but you can try using Ghostscript:

gs -q -sDEVICE=nullpage -dBATCH -dNOPAUSE \
-c '/showpage{currentpagedevice /PageSize get{=}forall showpage}bind def' \
-f test.ps

但是，然后您可能需要过滤掉所有警告或DSC注释。例如。我发现的测试文件之一给了我这个：

But then you may need to filter out any warnings or DSC comments. E.g. one of test file I found gave me this:

%%[ ProductName: GPL Ghostscript ]%%
(Warning: Job contains content that cannot be separated with on-host methods. Th
is content appears on the black plate, and knocks out all other plates.)
595.28
841.89
%%[Page: 1]%%
%%[LastPage]%%

放入一些重新定义的显示页面过程中添加标记可能会有所帮助。

Putting some markers into your redefined showpage procedure may be helpful.

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