From 5fb50679c8e2b55178bac47ce5db253013f3347c Mon Sep 17 00:00:00 2001
From: Evangelos Rigas <erigas@rnd2.org>
Date: Mon, 6 Aug 2018 10:57:47 +0100
Subject: [PATCH 2/2] [utils] Add PDF subtype to pdfinfo

If the document is compliant with PDF A, E, VT, UA or X standard
print GTS version and explain the conformance level.

 1 file changed, 104 insertions(+)

diff --git a/utils/pdfinfo.cc b/utils/pdfinfo.cc
index 4542580b..00fdb6cf 100644
--- a/utils/pdfinfo.cc
+++ b/utils/pdfinfo.cc
@@ -423,6 +423,108 @@ static void printDestinations(PDFDoc *doc, UnicodeMap *uMap) {
   }
 }
 
+static void printPdfSubtype(PDFDoc *doc, UnicodeMap *uMap) {
+  GooString *part;
+  GooString *typeExp;
+  GooString *confExp;
+  PDFSubtype pdftype;
+
+  Object info = doc->getDocInfo();
+  if (info.isDict()) {
+    pdftype = doc->getPDFSubtype();
+
+    if (pdftype == subtypeNull | pdftype == subtypeNone) {
+      return;
+    }
+
+    switch (pdftype)
+    {
+      case subtypePDFA:
+        printInfoString(info.getDict(), "GTS_PDFA1Version", "GTS version:    ", uMap);
+        typeExp = new GooString("ISO 19005 - Electronic document file format for long-term preservation (PDF/A)");
+        break;
+      case subtypePDFE:
+        printInfoString(info.getDict(), "GTS_PDFEVersion", "GTS version:    ", uMap);
+        typeExp = new GooString("ISO 24517 - Engineering document format using PDF (PDF/E)");
+        break;
+      case subtypePDFUA:
+        printInfoString(info.getDict(), "GTS_PDFUAVersion", "GTS version:    ", uMap);
+        typeExp = new GooString("ISO 14289 - Electronic document file format enhancement for accessibility (PDF/UA)");;
+        break;
+      case subtypePDFVT:
+            printInfoString(info.getDict(), "GTS_PDFVTVersion", "GTS version:    ", uMap);
+        typeExp = new GooString("ISO 16612 - Electronic document file format for variable data exchange (PDF/VT)");
+        break;
+      case subtypePDFX:
+        printInfoString(info.getDict(), "GTS_PDFXVersion", "GTS version:    ", uMap);
+        typeExp = new GooString("ISO 15930 - Electronic document file format for prepress digital data exchange (PDF/X)");
+        break;
+      case subtypeNone:
+      default:
+        typeExp = new GooString("");
+        break;
+    }
+
+    switch(doc->getPDFSubtypePart())
+    {
+      case subtypePart1:
+        part = new GooString("1");
+        break;
+      case subtypePart2:
+        part = new GooString("2");
+        break;
+      case subtypePart3:
+        part = new GooString("3");
+        break;
+      case subtypePart4:
+        part = new GooString("4");
+        break;
+      case subtypePart5:
+        part = new GooString("5");
+        break;
+      case subtypePartNone:
+      default:
+        part = nullptr;
+        break;
+    }
+
+    switch (doc->getPDFSubtypeConformance())
+    {
+      case subtypeConfA:
+        confExp = new GooString("Level A, Accessible");
+        break;
+      case subtypeConfB:
+        confExp = new GooString("Level B, Basic");
+        break;
+      case subtypeConfG:
+        confExp = new GooString("Level G, External graphical content");;
+        break;
+      case subtypeConfN:
+        confExp = new GooString("Level N, External ICC profile");
+        break;
+      case subtypeConfP:
+        confExp = new GooString("Level P, Embedded ICC profile");
+        break;
+      case subtypeConfPG:
+        confExp = new GooString("Level PG, Embedded ICC profile and external graphical content");
+        break;
+      case subtypeConfU:
+        confExp = new GooString("Level U, Unicode support");
+        break;
+      case subtypeConfNone:
+      default:
+        confExp = nullptr;
+        break;
+    }
+
+    printf("PDF subtype:    %s\n",typeExp->getCString());
+    if (part)
+        printf("Part:           %s\n", part->getCString());
+    if (confExp)
+      printf("Conformance:    %s\n", confExp->getCString());
+  }
+}
+
 static void printInfo(PDFDoc *doc, UnicodeMap *uMap, long long filesize, GBool multiPage) {
   Page *page;
   char buf[256];
@@ -595,6 +697,8 @@ static void printInfo(PDFDoc *doc, UnicodeMap *uMap, long long filesize, GBool m
 
   // print PDF version
   printf("PDF version:    %d.%d\n", doc->getPDFMajorVersion(), doc->getPDFMinorVersion());
+
+  printPdfSubtype(doc, uMap);
 }
 
 int main(int argc, char *argv[]) {
-- 
2.18.0