1 files changed, 40 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/utils/PdfAUtil.java b/src/main/java/at/gv/egiz/pdfas/utils/PdfAUtil.java
new file mode 100644
index 0000000..dd0560d
--- /dev/null
+++ b/src/main/java/at/gv/egiz/pdfas/utils/PdfAUtil.java
@@ -0,0 +1,40 @@
+package at.gv.egiz.pdfas.utils;
+
+/**
+ * PDF/A utility class
+ * @author dferbas
+ *
+ */
+public class PdfAUtil {
+   
+   /**
+    * Extract pdfa version from pdf metadata
+    * @param pdfMetadata
+    * @return
+    */
+   public static String findPdfAVersion(String pdfMetadata) {
+
+      String inf = pdfMetadata;
+      String pdfaNsMark = "http://www.aiim.org/pdfa/ns/id/";
+      String partMark = "<pdfaid:part>";
+      String confMark = "<pdfaid:conformance>";
+      int pdfaI = inf.indexOf(pdfaNsMark);
+
+      if (pdfaI > -1) {
+         int part = inf.indexOf(partMark);
+         StringBuffer version = new StringBuffer("PDF/A-");
+         part = part + partMark.length();
+         version.append(inf.substring(part, part + 1));
+         int conf = inf.indexOf(confMark);
+
+         conf = conf + confMark.length();
+         version.append(inf.substring(conf, conf + 1));
+
+         return version.toString();
+      } else {
+         return null;
+
+      }
+   }
+
+}