cleanup and defaults

src/main/java/stirling/software/SPDF/model/api/general/MergePdfsRequest.java

@@ -18,5 +18,5 @@ public class MergePdfsRequest extends MultiplePDFFiles {
                 "byPDFTitle"
             }, 
             defaultValue = "orderProvided")
-    private String sortType;
+    private String sortType = "orderProvided";
 }

src/main/java/stirling/software/SPDF/model/api/misc/ExtractImageScansRequest.java

@@ -13,17 +13,17 @@ public class ExtractImageScansRequest {
     private MultipartFile fileInput;
 
     @Schema(description = "The angle threshold for the image scan extraction", defaultValue = "5", example = "5")
-    private int angleThreshold;
+    private int angleThreshold = 5;
 
     @Schema(description = "The tolerance for the image scan extraction", defaultValue = "20", example = "20")
-    private int tolerance;
+    private int tolerance = 20;
 
     @Schema(description = "The minimum area for the image scan extraction", defaultValue = "8000", example = "8000")
-    private int minArea;
+    private int minArea = 8000;
 
     @Schema(description = "The minimum contour area for the image scan extraction", defaultValue = "500", example = "500")
-    private int minContourArea;
+    private int minContourArea = 500;
 
     @Schema(description = "The border size for the image scan extraction", defaultValue = "1", example = "1")
-    private int borderSize;
+    private int borderSize =1;
 }

src/main/java/stirling/software/SPDF/model/api/misc/ProcessPdfWithOcrRequest.java

@@ -30,7 +30,7 @@ public class ProcessPdfWithOcrRequest extends PDFFile {
     private String ocrType;
 
     @Schema(description = "Specify the OCR render type, either 'hocr' or 'sandwich'", allowableValues = {"hocr", "sandwich"}, defaultValue = "hocr")
-    private String ocrRenderType;
+    private String ocrRenderType = "hocr";
 
     @Schema(description = "Remove images from the output PDF if set to true")
     private Boolean removeImagesAfter;

src/main/java/stirling/software/SPDF/model/api/misc/RemoveBlankPagesRequest.java

@@ -10,8 +10,8 @@ import stirling.software.SPDF.model.api.PDFFile;
 public class RemoveBlankPagesRequest extends PDFFile {
 
     @Schema(description = "The threshold value to determine blank pages", example = "10", defaultValue = "10")
-    private int threshold;
+    private int threshold = 10;
 
     @Schema(description = "The percentage of white color on a page to consider it as blank", example = "99.9", defaultValue = "99.9")
-    private float whitePercent;
+    private float whitePercent = 99.9f;
 }

src/main/java/stirling/software/SPDF/model/api/security/AddPasswordRequest.java

@@ -16,7 +16,7 @@ public class AddPasswordRequest extends PDFFile {
     private String password;
 
     @Schema(description = "The length of the encryption key", allowableValues = {"40", "128", "256"}, defaultValue = "256")
-    private int keyLength;
+    private int keyLength = 256;
 
     @Schema(description = "Whether the document assembly is allowed", example = "false")
     private boolean canAssembleDocument;

src/main/java/stirling/software/SPDF/model/api/security/AddWatermarkRequest.java

@@ -11,7 +11,9 @@ import stirling.software.SPDF.model.api.PDFFile;
 @EqualsAndHashCode(callSuper=true)
 public class AddWatermarkRequest extends PDFFile {
 
-    @Schema(description = "The watermark type (text or image)", required = true)
+    @Schema(description = "The watermark type (text or image)",
+    		allowableValues = {"text", "image"}, 
+    		required = true)
     private String watermarkType;
 
     @Schema(description = "The watermark text")
@@ -23,13 +25,13 @@ public class AddWatermarkRequest extends PDFFile {
     @Schema(description = "The selected alphabet", 
             allowableValues = {"roman", "arabic", "japanese", "korean", "chinese"}, 
             defaultValue = "roman")
-    private String alphabet;
+    private String alphabet = "roman";
 
     @Schema(description = "The font size of the watermark text", example = "30")
-    private float fontSize;
+    private float fontSize = 30;
 
     @Schema(description = "The rotation of the watermark in degrees", example = "0")
-    private float rotation;
+    private float rotation = 0;
 
     @Schema(description = "The opacity of the watermark (0.0 - 1.0)", example = "0.5")
     private float opacity;

src/main/java/stirling/software/SPDF/model/api/security/RedactPdfRequest.java

@@ -19,7 +19,7 @@ public class RedactPdfRequest extends PDFFile {
     private boolean wholeWordSearch;
 
     @Schema(description = "The color for redaction", defaultValue = "#000000")
-    private String redactColor;
+    private String redactColor = "#000000";
 
     @Schema(description = "Custom padding for redaction", type = "number")
     private float customPadding;