如何设置初始视图属性？ [英] How to set initial view properties?

问题描述

在这里，我想在acrobat中的初始视图标签下设置已存在的PDF文档属性。

Here I want to set the already exist PDF document properties under Initial View tab in acrobat.

文档选项：

• 显示=书签面板和页面


• 页面布局=连续


• 放大率=适合宽度


• 打开到页码= 1

• Show = Bookmarks Panel and Page
• Page Layout = Continuous
• Magnification = Fit Width
• Open to Page number = 1

窗口选项：

• 显示=文档标题

如以下屏幕截图所示：

我尝试使用以下代码：

PdfStamper stamper = new PdfStamper(reader, new FileStream(dPDFFile, FileMode.Create));
stamper.AddViewerPreference(PdfName.DISPLAYDOCTITLE, new PdfBoolean(true));

以上代码用于设置文档标题显示。

the above code is used to set the document title show.

但以下代码无法正常工作

对于页面布局：

stamper.AddViewerPreference(PdfName.PAGELAYOUT, new PdfName("OneColumn"));

对于书签面板和页面：

stamper.AddViewerPreference(PdfName. PageMode, new PdfName("UseOutlines"));

所以请指导我，以满足我的要求的正确方法。

So please give guide me what is the correct way to meet my requirement.

推荐答案

我在回答上一个答案的评论中的额外问题时添加了额外的答案：

I'm adding an extra answer in answer to the extra question in the comments of the previous answer:

如果你有一个名为 writer 的 PdfWriter 实例，你可以像这样设置Viewer首选项： / p>

When you have a PdfWriter instance named writer, you can set the Viewer preferences like this:

writer.ViewerPreferences = viewerpreference;

在这种情况下， viewerpreference 是一个可以具有以下值之一的值：

In this case, the viewerpreference is a value that can have one of the following values:

• PdfWriter.PageLayoutSinglePage


• PdfWriter.PageLayoutOneColumn


• PdfWriter.PageLayoutTwoColumnLeft


• PdfWriter.PageLayoutTwoColumnRight


• PdfWriter.PageLayoutTwoPageLeft


• PdfWriter.PageLayoutTwoPageRight

• PdfWriter.PageLayoutSinglePage
• PdfWriter.PageLayoutOneColumn
• PdfWriter.PageLayoutTwoColumnLeft
• PdfWriter.PageLayoutTwoColumnRight
• PdfWriter.PageLayoutTwoPageLeft
• PdfWriter.PageLayoutTwoPageRight

有关详细信息，请参阅 PageLayoutExample 。

See the PageLayoutExample for more info.

您还可以更改页面模式，如 ViewerPreferencesExample 。在这种情况下，不同的值是OR-ed：

You can also change the page mode as is shown in the ViewerPreferencesExample. In which case the different values are "OR"-ed:

• PdfWriter.PageModeFullScreen


• PdfWriter.PageModeUseThumbs


• PdfWriter.PageLayoutTwoColumnRight | PdfWriter.PageModeUseThumbs


• PdfWriter.PageModeFullScreen | PdfWriter.NonFullScreenPageModeUseOutlines


• PdfWriter.FitWindow | PdfWriter.HideToolbar


• PdfWriter.HideWindowUI

• PdfWriter.PageModeFullScreen
• PdfWriter.PageModeUseThumbs
• PdfWriter.PageLayoutTwoColumnRight | PdfWriter.PageModeUseThumbs
• PdfWriter.PageModeFullScreen | PdfWriter.NonFullScreenPageModeUseOutlines
• PdfWriter.FitWindow | PdfWriter.HideToolbar
• PdfWriter.HideWindowUI

目前，您只使用了官方文档中的PrintPreferences示例：

Currently, you've only used the PrintPreferences example from the official documentation:

writer.AddViewerPreference(PdfName.PRINTSCALING, PdfName.NONE);
writer.AddViewerPreference(PdfName.NUMCOPIES, new PdfNumber(3));
writer.AddViewerPreference(PdfName.PICKTRAYBYPDFSIZE, PdfBoolean.PDFTRUE); 

但在某些情况下，它更容易使用：

But in some cases, it's just easier to use:

writer.ViewerPreferences = viewerpreference;

请注意，官方文档是iText in Action - Second Edition。这些示例是用Java编写的，但您可以找到C＃版本这里。有一本名为PDF的ABC的新书，但到目前为止只写了4章。您可以在此处找到更多信息： http://itextpdf.com/learn

Note that the official documentation is the book "iText in Action - Second Edition." The examples are written in Java, but you can find the C# version here. There is a new book in the works called "The ABC of PDF", but so far only 4 chapters were written. You'll find more info here: http://itextpdf.com/learn

关于创建 PdfDestination 的不同选项的部分已经出现在PDF的ABC中。

The part about the different options to create a PdfDestination is already present in "The ABC of PDF".

至于设置语言，这样做：

As for setting the language, this is done like this:

stamper.Writer.ExtraCatalog.Put(PdfName.LANG, new PdfString("EN"));

结果显示在以下屏幕截图中：

The result is shown in the following screen shot:

As你可以看到，现在有一个 Lang 条目，其值 EN 被添加到目录中。

As you can see, there is now a Lang entry with value EN added to the catalog.

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