diff options
| -rw-r--r-- | src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java index bc399f0..ae1ce12 100644 --- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java +++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java @@ -966,15 +966,30 @@ public abstract class BinarySignature }
}
- private static void replacePlaceholder(PdfStamper stamper, int pageNr, String placeholderName) throws BadElementException, MalformedURLException, IOException, BadPdfFormatException {
+ private static void replacePlaceholder(PdfStamper stamper, int pageNr, String placeholderName) throws BadElementException, MalformedURLException, IOException, BadPdfFormatException, PresentableException {
Image img = Image.getInstance(SignaturePlaceholderData.class.getResource("empty.jpg"));
PdfImage pImg = new PdfImage(img, "Imwurscht", null);
PdfStamperImp stamperImp = (PdfStamperImp)stamper.getWriter();
PdfIndirectObject ind = stamperImp.addToBody(pImg);
PdfDictionary resources = stamper.getReader().getPageN(pageNr).getAsDict(PdfName.RESOURCES);
- resources.getAsDict(PdfName.XOBJECT).put(new PdfName(placeholderName), ind.getIndirectReference());
- stamperImp.markUsed(resources);
+ if (ind != null && resources != null)
+ {
+ PdfDictionary xobjDict = resources.getAsDict(PdfName.XOBJECT);
+ if (xobjDict != null)
+ {
+ xobjDict.put(new PdfName(placeholderName), ind.getIndirectReference());
+ stamperImp.markUsed(resources);
+ }
+ else
+ {
+ throw new PresentableException(ErrorCode.CANNOT_WRITE_PDF, new NullPointerException("Image dictionary not found in document structure!"));
+ }
+ }
+ else
+ {
+ throw new PresentableException(ErrorCode.CANNOT_WRITE_PDF, new NullPointerException("Resource dictionary not found in document structure!"));
+ }
}
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