GhostPDF - warn on use of /DeviceN /All

The /All in name is illegal in PDF (it is valid in PostScript). Acrobat
allegedly seems to accept this; if the ink name array only has one
entry and the entry is /All it seems to convert it to a /Sepaaration
/All, which is equivalent.

However sometimes (tests_private/comparefiles/Testform.v1.0.2.pdf) it
throws an error instead. Possibly this is a change in behaviour with
more recent versions of Acrobat.

In any event, we now raise a warning.

1 files changed, 1 insertions, 0 deletions

diff --git a/pdf/ghostpdf.h b/pdf/ghostpdf.h
index b83e3ea02..9d10d0f74 100644
--- a/pdf/ghostpdf.h
+++ b/pdf/ghostpdf.h
@@ -115,6 +115,7 @@ typedef enum pdf_warning_e {
     W_PDF_BAD_ICC_PROFILE_LINK,
     W_PDF_OVERFLOW_REAL,
     W_PDF_INVALID_REAL,
+    W_PDF_DEVICEN_USES_ALL,
     W_PDF_MAX_WARNING               /* Must be last entry, add new warnings immediately before this and update pdf_warning_strings in ghostpdf.c */
 } pdf_warning;