From 4895ed297886d62f93bee11667764ce2c45ad521 Mon Sep 17 00:00:00 2001
From: Sean Kau <skau@chromium.org>
Date: Fri, 29 Jan 2021 15:03:37 -0800
Subject: [PATCH] Swap to qpdf to determine page count.

---
 filter/foomatic-rip/pdf.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/filter/foomatic-rip/pdf.c b/filter/foomatic-rip/pdf.c
index 83baf4d0..e5afb4a0 100644
--- a/filter/foomatic-rip/pdf.c
+++ b/filter/foomatic-rip/pdf.c
@@ -47,14 +47,11 @@ int pdf_count_pages(const char *filename)
     size_t bytes;
     char *p;
 
-    snprintf(gscommand, CMDLINE_MAX, "%s -dNODISPLAY -dNOSAFER -dNOPAUSE -q -c "
-	     "'/pdffile (%s) (r) file runpdfbegin (PageCount: ) print "
-	     "pdfpagecount = quit'",
-	     gspath, filename);
+    snprintf(gscommand, CMDLINE_MAX, "qpdf --show-npages %s", filename);
 
     FILE *pd = popen(gscommand, "r");
     if (!pd)
-      rip_die(EXIT_STARVED, "Failed to execute ghostscript to determine number of input pages!\n");
+      rip_die(EXIT_STARVED, "Failed to execute QPDF to determine number of input pages!\n");
 
     bytes = fread_or_die(output, 1, sizeof(output), pd);
     pclose(pd);
@@ -62,7 +59,7 @@ int pdf_count_pages(const char *filename)
     p = output;
     pagecount = -1;
     while (bytes > 0) {
-      if (sscanf(p, "PageCount: %d", &pagecount) >= 1)
+      if (sscanf(p, "%d", &pagecount) >= 1)
 	break;
       p = memchr(p, '\n', bytes);
       if (p == NULL)
-- 
2.30.0.365.g02bc693789-goog