如何使用iTextSharp覆盖PDF打印对话框设置 [英] How can I override PDF print dialog settings with iTextSharp

问题描述

任何人都可以告诉我如何使用iTextSharp覆盖pdf打印对话框中的页面方向选择。

Can any one tell me how to override page orientation selection in pdf print dialog using iTextSharp.

我使用这些线来覆盖缩放和选择纸张来源 PDF页面大小

I am using these lines to override scaling and "Choose paper source by PDF page size"

writer.AddViewerPreference(PdfName.PRINTSCALING,PdfName.NONE);
writer.AddViewerPreference(PdfName.PICKTRAYBYPDFSIZE, PdfBoolean.PDFFALSE);

推荐答案

请查看标题为查看器中的条目的表150首选项字典，在ISO-32000-1中（您可以从Adobe网站下载副本）。它包含您可以在PDF文档中定义的所有查看器首选项，包括 PrintScaling 和 PickTrayByPDFSize ，但您将找不到任何覆盖页面方向选择的设置。

Please check table 150, entitled "Entries in a viewer preferences dictionary", in ISO-32000-1 (you can download a copy from the Adobe web site). It contains all the viewer preferences you can define in a PDF document, including PrintScaling and PickTrayByPDFSize, but you won't find any setting to override the page orientation selection.

换句话说：你问的是PDF规范中没有定义的东西，因此，它没有在任何PDF库中实现（至于我知道。）

In other words: you're asking something that isn't defined in the PDF specification, and as a result, it isn't implemented in any PDF library (as far as I know).

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