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-rw-r--r--pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignatureFieldsAndPlaceHolderExtractor.java3
1 files changed, 3 insertions, 0 deletions
diff --git a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignatureFieldsAndPlaceHolderExtractor.java b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignatureFieldsAndPlaceHolderExtractor.java
index 63552c2a..609f8254 100644
--- a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignatureFieldsAndPlaceHolderExtractor.java
+++ b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignatureFieldsAndPlaceHolderExtractor.java
@@ -50,6 +50,9 @@ public class SignatureFieldsAndPlaceHolderExtractor {
mode, doc);
List<SignaturePlaceholderData> results = signaturePlaceholderExtractor.extractList(doc, placeholderId,
mode);
+ if (results == null) {
+ return null;
+ }
List<String> used = getExistingSignatureLocations(doc);
//return first not used
for(SignaturePlaceholderData result : results) {