misc beginings

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

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+package stirling.software.SPDF.model.api.misc;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import stirling.software.SPDF.model.api.PDFFile;
+
+@Data
+public class AutoSplitPdfRequest extends PDFFile {
+
+    @Schema(description = "Flag indicating if the duplex mode is active, where the page after the divider also gets removed.", required = false, defaultValue = "false")
+    private boolean duplexMode;
+}

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

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+package stirling.software.SPDF.model.api.misc;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import stirling.software.SPDF.model.api.PDFFile;
+
+@Data
+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;
+}

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

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+package stirling.software.SPDF.model.api.misc;
+
+import org.springframework.web.multipart.MultipartFile;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+@Data
+public class ExtractImageScansRequest {
+    @Schema(description = "The input file containing image scans", required = true)
+    private MultipartFile fileInput;
+
+    @Schema(description = "The angle threshold for the image scan extraction", defaultValue = "5", example = "5")
+    private int angleThreshold;
+
+    @Schema(description = "The tolerance for the image scan extraction", defaultValue = "20", example = "20")
+    private int tolerance;
+
+    @Schema(description = "The minimum area for the image scan extraction", defaultValue = "8000", example = "8000")
+    private int minArea;
+
+    @Schema(description = "The minimum contour area for the image scan extraction", defaultValue = "500", example = "500")
+    private int minContourArea;
+
+    @Schema(description = "The border size for the image scan extraction", defaultValue = "1", example = "1")
+    private int borderSize;
+}

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

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+package stirling.software.SPDF.model.api.misc;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import stirling.software.SPDF.model.api.PDFFile;
+
+@Data
+public class OptimizePdfRequest extends PDFFile {
+
+    @Schema(description = "The level of optimization to apply to the PDF file. Higher values indicate greater compression but may reduce quality.",
+           allowableValues = { "1", "2", "3", "4", "5" })
+    private Integer optimizeLevel;
+
+    @Schema(description = "The expected output size, e.g. '100MB', '25KB', etc.")
+    private String expectedOutputSizeString;
+}

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

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+package stirling.software.SPDF.model.api.misc;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import stirling.software.SPDF.model.api.PDFFile;
+
+@Data
+public class RemoveBlankPagesRequest extends PDFFile {
+
+    @Schema(description = "The threshold value to determine blank pages", example = "10", defaultValue = "10")
+    private int threshold;
+
+    @Schema(description = "The percentage of white color on a page to consider it as blank", example = "99.9", defaultValue = "99.9")
+    private float whitePercent;
+}