feat(signatureblock): optimize processing for signed documents with less space for signature block

Issue #73

add configuration property to stop signing process if
document has less space for new signature block and
new page is not allowed because document is already signed

2 files changed, 7 insertions, 1 deletions

diff --git a/pdf-as-lib/src/configuration/cfg/advancedconfig.properties b/pdf-as-lib/src/configuration/cfg/advancedconfig.properties
index c5fd06e9..9ba105d1 100644
--- a/pdf-as-lib/src/configuration/cfg/advancedconfig.properties
+++ b/pdf-as-lib/src/configuration/cfg/advancedconfig.properties
@@ -21,7 +21,6 @@
 

 #enable_placeholder_search=true

 

-

 #Aktiviert oder deaktiviert die Kompatibilität mit dem PAdES Signaturstandard manuell

 #sig_obj.PAdESCompatibility=[true|false]

 

@@ -42,6 +41,11 @@
 # MATCH_MODE_SORTED = 3

 #placeholder_mode=

 

+

+### stop processing it signature-block can not valid placed on document

+sigblock.placement.less.space.failing=false

+

+

 ##################

 # Signaturdienste

 

diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/api/IConfigurationConstants.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/api/IConfigurationConstants.java
index 4d6cef47..21a8e3b9 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/api/IConfigurationConstants.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/api/IConfigurationConstants.java
@@ -110,6 +110,8 @@ public interface IConfigurationConstants {
 	/**
 	 * Visual Signature placement
 	 */
+	
+	public static final String SIG_BLOCK_LESS_SPACE_STOPPING_WITH_ERROR = "sigblock.placement.less.space.failing";
 	public static final String BG_COLOR_DETECTION = "sigblock.placement.bgcolor.detection.enabled";
 	public static final String SIG_PLACEMENT_DEBUG_OUTPUT = "sigblock.placement.debug.file";