On 20-2-2011 11:21, Michail Vidiassov wrote:
Dear Developers,
On Sun, 20 Feb 2011, Michail Vidiassov wrote:
to be precise, the attachment is attached once
but is listed twice by Adobe Reader.
PDF spec states
----------
An embedded file stream shall be included in a PDF document in one of
the following ways:
• Any file specification dictionary in the document may have an EF entry
that specifies an embedded file stream. The stream data shall still be
associated with a location in the file system. In particular, this
method shall be used for file attachment annotations (see 12.5.6.15,
"File Attachment Annotations"), which associate the embedded file with a
location on a page in the document.
• Embedded file streams may be associated with the document as a whole
through the EmbeddedFiles entry (PDF 1.4) in the PDF document’s name
dictionary (see 7.7.4, "Name Dictionary"). The associated name tree
shall map name strings to file specifications that refer to embedded
file streams through their EF entries.
----------
while code in lpdf-wid.lua sends everything to EmbeddedFiles - including
files associated "with a location on a page in the document" as in the
examples in the originator's post.
i'll patch lpdf-wid but somehow I get the impression that it's more a
viewer issue (the list shown seems to be a merge of filename as well as
symbolic names while a clever list builder should look at the referred
objects) ... but maybe no one else usesvdifferent symbolic names (we had
similar issues with fields in the past and even now advanced field
support is somewhat bugged one or the other way, depending on the viewer
version, esp chained ones)
Hans
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