fixes

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

@@ -10,5 +10,5 @@ import stirling.software.SPDF.model.api.PDFFile;
 public class ExtractHeaderRequest extends PDFFile {
 
     @Schema(description = "Flag indicating whether to use the first text as a fallback if no suitable title is found. Defaults to false.", required = false, defaultValue = "false")
-    private Boolean useFirstTextAsFallback;
+    private boolean useFirstTextAsFallback;
 }

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

@@ -12,7 +12,7 @@ import stirling.software.SPDF.model.api.PDFFile;
 public class MetadataRequest extends PDFFile {
 
     @Schema(description = "Delete all metadata if set to true")
-    private Boolean deleteAll;
+    private boolean deleteAll;
 
     @Schema(description = "The author of the document")
     private String author;

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

@@ -14,5 +14,5 @@ public class OptimizePdfRequest extends PDFFile {
     private Integer optimizeLevel;
 
     @Schema(description = "The expected output size, e.g. '100MB', '25KB', etc.")
-    private String expectedOutputSizeString;
+    private String expectedOutputSize;
 }

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

@@ -12,19 +12,19 @@ import stirling.software.SPDF.model.api.PDFFile;
 public class ProcessPdfWithOcrRequest extends PDFFile {
 
     @Schema(description = "List of languages to use in OCR processing")
-    private List<String> selectedLanguages;
+    private List<String> languages;
 
     @Schema(description = "Include OCR text in a sidecar text file if set to true")
-    private Boolean sidecar;
+    private boolean sidecar;
 
     @Schema(description = "Deskew the input file if set to true")
-    private Boolean deskew;
+    private boolean deskew;
 
     @Schema(description = "Clean the input file if set to true")
-    private Boolean clean;
+    private boolean clean;
 
     @Schema(description = "Clean the final output if set to true")
-    private Boolean cleanFinal;
+    private boolean cleanFinal;
 
     @Schema(description = "Specify the OCR type, e.g., 'skip-text', 'force-ocr', or 'Normal'", allowableValues = {"skip-text", "force-ocr", "Normal"})
     private String ocrType;
@@ -33,5 +33,5 @@ public class ProcessPdfWithOcrRequest extends PDFFile {
     private String ocrRenderType = "hocr";
 
     @Schema(description = "Remove images from the output PDF if set to true")
-    private Boolean removeImagesAfter;
+    private boolean removeImagesAfter;
 }