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From: Ray Johnston <ray.johnston@artifex.com>
Date: Mon, 18 Feb 2019 12:11:45 -0800
Subject: Bug 700599: Issue an error message if an ExtGstate is not found.
Origin: http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=be86d2ff2f0f0ea0e365707f3be0fa0c9e7315ee
Bug: https://bugs.ghostscript.com/show_bug.cgi?id=700599
Previously, this was silently ignored. Only issue a single warning,
and respect PDFSTOPONERROR to prevent continuing with potentially
incorrect output.
Note that tests_private/pdf/uploads/bug696410.pdf also now gets this
error message (ExtGState" instead of ExtGState in object 10).
---
Resource/Init/pdf_draw.ps | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/Resource/Init/pdf_draw.ps b/Resource/Init/pdf_draw.ps
index 75b5eb622b52..c0201ad65da2 100644
--- a/Resource/Init/pdf_draw.ps
+++ b/Resource/Init/pdf_draw.ps
@@ -494,7 +494,16 @@ end
dup {
oforce exch gsparamdict exch .knownget { exec } { pop } ifelse
} forall pop
- } if
+ } {
+ //pdfdict /.gs_warning_issued known not {
+ (\n **** Error 'gs' ignored -- ExtGState missing from Resources.\n)
+ pdfformaterror
+ ( Output may be incorrect.\n) pdfformaterror
+ //pdfdict /.gs_warning_issued //true .forceput
+ PDFSTOPONERROR { /gs /undefined signalerror } if
+ } if
+ }
+ ifelse
} bind executeonly def
% ------ Transparency support ------ %
--
2.20.1
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