1 files changed, 30 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/utils/PDFASUtils.java b/src/main/java/at/gv/egiz/pdfas/utils/PDFASUtils.java
new file mode 100644
index 0000000..b26cc9b
--- /dev/null
+++ b/src/main/java/at/gv/egiz/pdfas/utils/PDFASUtils.java
@@ -0,0 +1,30 @@
+package at.gv.egiz.pdfas.utils;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+
+import com.lowagie.text.pdf.PdfReader;
+
+/**
+ * @author tknall
+ */
+public class PDFASUtils {
+   
+   private PDFASUtils() {
+   }
+   
+   /**
+    * Verifies that a document could be opened with full permissions. 
+    * @param pdfReader The PdfReader
+    * @throws PDFDocumentException Thrown if document has not been opened with full permissions.
+    */
+   public static void checkReaderPermissions(PdfReader pdfReader) throws PDFDocumentException {
+      if (pdfReader.isEncrypted()) {
+         throw new PDFDocumentException(ErrorCode.DOCUMENT_IS_PROTECTED, "Document is encrypted.");
+      }
+      if (!pdfReader.isOpenedWithFullPermissions()) {
+         throw new PDFDocumentException(ErrorCode.DOCUMENT_IS_PROTECTED, "Document is protected.");
+      }
+   }
+   
+}