GhostPDF - Fix annotation visibility detection, improve -dPrinted.

Bug #706441 "AcroForm field Btn with no AP not implemented"

The title is misleading. The actual problem is that when checking to
determine the 'visibility' of an annotation, the NoView bit was being
checked with the wrong bit set in the mask.

This led to the annotation not being visible and not rendering.

From there; the old PDF interpreter used the presence of an OutputFile
on the command line to determine whether or not the output should be
treated as 'printer' or 'viewer'. The display device doesn't take an
OutputFIle so we treat that as a viewer. We weren't taking that action
at all internally.

So pass OutputFile in from the PostScript world if it is present, and
look for it on the command line if we are stand-alone. Start by assuming
we are a printer. If we find an OutputFile, and have not encountered a
'Printed' switch, then assume we are a printer.

Secondly; deal with the warnings. These are real but are the wrong place
for a warning. The problem is that we have an annotation which has an
/AP dictionary:

<<
/D <</Off 723 0 R/renew 724 0 R>>
/N <</renew 722 0 R>>
>>

We pick up the Normal (/N) key/value and see that the value is a
dictionary. So we consult the annotation for a /AS (appearance state)
which in this case is defined as:

/AS/Off

So we then try to find the /Off state in the sub-dictionary. There isn't
one. The specification has nothing to say about what we should do here.
I've chosen to replace the appearance with a null object and alter the
drawing routine to simply silently ignore this case.

Final note; the code is now behaving as it is expected to, but the file
in bug #706441 will still be missing a number of buttons when rendered,
because these buttons are only drawn when the application is a viewer.
In order to have them render Ghostscript must be invoked with :

-dPrinted=false

1 files changed, 1 insertions, 1 deletions

diff --git a/Resource/Init/pdf_main.ps b/Resource/Init/pdf_main.ps
index 32af17e33..3f89477c0 100644
--- a/Resource/Init/pdf_main.ps
+++ b/Resource/Init/pdf_main.ps
@@ -824,7 +824,7 @@ systemdict /OLDPDF known not {/OLDPDF //false def} if
                /PDFNOCIDFALLBACK /NO_PDFMARK_OUTLINES /NO_PDFMARK_DESTS /PDFFitPage /Printed /UsePDFX3Profile
                /UseBleedBox /UseCropBox /UseArtBox /UseTrimBox /ShowAcroForm /ShowAnnots /PreserveAnnots
                /NoUserUnit /RENDERTTNOTDEF /DOPDFMARKS /PDFINFO /ShowAnnotTypes /PreserveAnnotTypes
-               /CIDFSubstPath /CIDFSubstFont /SUBSTFONT /IgnoreToUnicode /NONATIVEFONTMAP /PreserveMarkedContent ] def
+               /CIDFSubstPath /CIDFSubstFont /SUBSTFONT /IgnoreToUnicode /NONATIVEFONTMAP /PreserveMarkedContent /OutputFile] def
 
 /newpdf_gather_parameters
 {