Perhaps zooming could be in there too.
Don't know how realistic image copying is, but copying text should be possible

I think there are other possible actions that could be included in the context
menu. 
I propose a simple menu like this:

<popup name="ViewPopup">
     <menuitem name="ViewPreviousPagePopup" action="GoPreviousPage"/>
     <menuitem name="ViewNextPagePopup" action="GoNextPage"/>
     <menuitem name="ViewReloadPopup" action="ViewReload"/>
     <separator/>
     <menuitem name="ViewCopyPopup" action="EditCopy"/>
     <separator/>
     <menuitem name="ViewSelectAllPopup" action="EditSelectAll"/>
</popup>

ViewCopyPopup would be visible only if there is text selected and
ViewSelectAllPopup when the document allow selections

I think there is yet another useful use of the context menu. For external links
it  could show "Open Link" and "Copy Link Address"

*** Bug 318314 has been marked as a duplicate of this bug. ***

I propose that 2 types of context menu. One for the text selection and other 
for general view of the pdf. Currently, evinice does not differentiate between 
normal view mode and text selection mode like Adobe Acrobat Reader. So for now, 
we can work on the text selection context menu like this:

<popup name="SelectPopup">
     <menuitem name="Copy" action="CopyToClipboard"/>
     <separator/>
     <menuitem name="SelectAll" action="SelectAll"/>
     <menuitem name="DeSelectAll" action="DeSelectAll"/>
</popup>

Created attachment 53365 [details] [review]
Patch

Ok, here is my proposal. At this moment there are two menus: DocumentPopup and
ExternalLinkPopup

<popup name="DocumentPopup" action="PopupAction">
    <menuitem name="GoPreviousPageDP" action="GoPreviousPage"/>
    <menuitem name="GoNextPageDP" action="GoNextPage"/>
    <menuitem name="ViewReloadDP" action="ViewReload"/>
    <separator/>
    <menuitem name="EditCopyDP" action="EditCopy"/>
    <menuitem name="EditSelectAllPopup" action="EditSelectAll"/>
</popup>

<popup name="ExternalLinkPopup" action="PopupAction">
    <menuitem name="OpenLinkELP" action="OpenLink"/>
    <menuitem name="EditCopyELP" action="EditCopy"/>
    <menuitem name="CopyLinkAddressELP" action="CopyLinkAddress"/>
</popup>

In both Document and ExternalLink, copy action will only be visible when there
is text selected. I'm not sure if "Select all" should be invisible when
selection is not supported by the document.

What about "DeSelectAll"? I find "DeSelectAll" is quite handy and useful.

You can DeSelectAll by simply clicking on the view which is faster than right
click -> DeSelectAll. I think the context menu should be as simple as possible. 

Patch is applied. I've modified it a bit to hide view details from window and to make memory management more clear, but thanks a lot anyhow.

I think any suggestions about menu contents should be discussed in other bugs.