Refactor codebase to replace explicit constructors with Lombok annotations and remove boilerplat (#3415)

# Description of Changes

- **What was changed:**  
- Removed explicit constructor definitions annotated with `@Autowired`
across services, controllers, filters, and schedulers.
- Added Lombok’s `@RequiredArgsConstructor` to automatically generate
required-args constructors and eliminate boilerplate.
- Introduced other Lombok annotations (`@Data`, `@Getter`, `@Setter`,
`@EqualsAndHashCode`, `@NoArgsConstructor`) on model and API classes to
replace manual getters/setters and constructors.
- Standardized string comparisons to use the constant-first form (e.g.,
`"value".equals(variable)`).
- Cleaned up unused imports and organized OpenAPI configuration by
extracting default title/description constants.

- **Why the change was made:**  
  - To reduce repetitive boilerplate code and improve maintainability.  
- To leverage Lombok for cleaner, more consistent dependency injection
and data modeling.
  - To ensure a uniform coding style across the entire codebase.

#3406

---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code  
- [x] My changes generate no new warnings  

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached  

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

src/main/java/stirling/software/SPDF/controller/api/misc/AutoRenameController.java

@@ -8,7 +8,6 @@ import java.util.List;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.text.PDFTextStripper;
 import org.apache.pdfbox.text.TextPosition;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -20,6 +19,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.ExtractHeaderRequest;
@@ -30,18 +30,14 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class AutoRenameController {
 
-    private static final float TITLE_FONT_SIZE_THRESHOLD = 20.0f;
+    // private static final float TITLE_FONT_SIZE_THRESHOLD = 20.0f;
     private static final int LINE_LIMIT = 200;
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public AutoRenameController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/auto-rename")
     @Operation(
             summary = "Extract header from PDF file",

src/main/java/stirling/software/SPDF/controller/api/misc/AutoSplitPdfController.java

@@ -16,7 +16,6 @@ import java.util.zip.ZipOutputStream;
 
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.rendering.PDFRenderer;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -32,6 +31,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.AutoSplitPdfRequest;
@@ -42,6 +42,7 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class AutoSplitPdfController {
 
     private static final Set<String> VALID_QR_CONTENTS =
@@ -53,11 +54,6 @@ public class AutoSplitPdfController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public AutoSplitPdfController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     private static String decodeQRCode(BufferedImage bufferedImage) {
         LuminanceSource source;
 

src/main/java/stirling/software/SPDF/controller/api/misc/BlankPageController.java

@@ -13,7 +13,6 @@ import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDPageTree;
 import org.apache.pdfbox.rendering.PDFRenderer;
 import org.apache.pdfbox.text.PDFTextStripper;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
@@ -27,6 +26,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.RemoveBlankPagesRequest;
@@ -38,15 +38,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class BlankPageController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public BlankPageController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     public static boolean isBlankImage(
             BufferedImage image, int threshold, double whitePercent, int blurSize) {
         if (image == null) {

src/main/java/stirling/software/SPDF/controller/api/misc/DecompressPdfController.java

@@ -10,7 +10,6 @@ import org.apache.pdfbox.cos.*;
 import org.apache.pdfbox.io.IOUtils;
 import org.apache.pdfbox.pdfwriter.compress.CompressParameters;
 import org.apache.pdfbox.pdmodel.PDDocument;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -22,6 +21,7 @@ import org.springframework.web.multipart.MultipartFile;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.PDFFile;
@@ -32,15 +32,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class DecompressPdfController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public DecompressPdfController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(value = "/decompress-pdf", consumes = "multipart/form-data")
     @Operation(
             summary = "Decompress PDF streams",

src/main/java/stirling/software/SPDF/controller/api/misc/ExtractImageScansController.java

@@ -16,7 +16,6 @@ import javax.imageio.ImageIO;
 import org.apache.commons.io.FileUtils;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.rendering.PDFRenderer;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -29,6 +28,7 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.parameters.RequestBody;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.ExtractImageScansRequest;
@@ -42,17 +42,13 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class ExtractImageScansController {
 
     private static final String REPLACEFIRST = "[.][^.]+$";
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public ExtractImageScansController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/extract-image-scans")
     @Operation(
             summary = "Extract image scans from an input file",

src/main/java/stirling/software/SPDF/controller/api/misc/ExtractImagesController.java

@@ -24,7 +24,6 @@ import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -37,6 +36,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.PDFExtractImagesRequest;
@@ -48,15 +48,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class ExtractImagesController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public ExtractImagesController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/extract-images")
     @Operation(
             summary = "Extract images from a PDF file",

src/main/java/stirling/software/SPDF/controller/api/misc/FlattenController.java

@@ -11,7 +11,6 @@ import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
 import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
 import org.apache.pdfbox.rendering.ImageType;
 import org.apache.pdfbox.rendering.PDFRenderer;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -23,6 +22,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.FlattenRequest;
@@ -33,15 +33,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class FlattenController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public FlattenController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/flatten")
     @Operation(
             summary = "Flatten PDF form fields or full page",

src/main/java/stirling/software/SPDF/controller/api/misc/MetadataController.java

@@ -10,7 +10,6 @@ import java.util.Map.Entry;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.WebDataBinder;
 import org.springframework.web.bind.annotation.*;
@@ -20,6 +19,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.MetadataRequest;
@@ -31,15 +31,11 @@ import stirling.software.SPDF.utils.propertyeditor.StringToMapPropertyEditor;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class MetadataController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public MetadataController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     private String checkUndefined(String entry) {
         // Check if the string is "undefined"
         if ("undefined".equals(entry)) {

src/main/java/stirling/software/SPDF/controller/api/misc/OCRController.java

@@ -28,6 +28,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.ApplicationProperties;
@@ -38,19 +39,13 @@ import stirling.software.SPDF.service.CustomPDFDocumentFactory;
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
 @Slf4j
+@RequiredArgsConstructor
 public class OCRController {
 
     private final ApplicationProperties applicationProperties;
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    public OCRController(
-            ApplicationProperties applicationProperties,
-            CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.applicationProperties = applicationProperties;
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     /** Gets the list of available Tesseract languages from the tessdata directory */
     public List<String> getAvailableTesseractLanguages() {
         String tessdataDir = applicationProperties.getSystem().getTessdataDir();
@@ -61,7 +56,7 @@ public class OCRController {
         return Arrays.stream(files)
                 .filter(file -> file.getName().endsWith(".traineddata"))
                 .map(file -> file.getName().replace(".traineddata", ""))
-                .filter(lang -> !lang.equalsIgnoreCase("osd"))
+                .filter(lang -> !"osd".equalsIgnoreCase(lang))
                 .toList();
     }
 

src/main/java/stirling/software/SPDF/controller/api/misc/OverlayImageController.java

@@ -2,7 +2,6 @@ package stirling.software.SPDF.controller.api.misc;
 
 import java.io.IOException;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -15,6 +14,7 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.misc.OverlayImageRequest;
@@ -26,15 +26,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RequestMapping("/api/v1/misc")
 @Slf4j
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class OverlayImageController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public OverlayImageController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/add-image")
     @Operation(
             summary = "Overlay image onto a PDF file",

src/main/java/stirling/software/SPDF/controller/api/misc/PageNumbersController.java

@@ -10,7 +10,6 @@ import org.apache.pdfbox.pdmodel.PDPageContentStream;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
 import org.apache.pdfbox.pdmodel.font.PDType1Font;
 import org.apache.pdfbox.pdmodel.font.Standard14Fonts;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -23,6 +22,8 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
+
 import stirling.software.SPDF.model.api.misc.AddPageNumbersRequest;
 import stirling.software.SPDF.service.CustomPDFDocumentFactory;
 import stirling.software.SPDF.utils.GeneralUtils;
@@ -31,15 +32,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RestController
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class PageNumbersController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public PageNumbersController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(value = "/add-page-numbers", consumes = "multipart/form-data")
     @Operation(
             summary = "Add page numbers to a PDF document",

src/main/java/stirling/software/SPDF/controller/api/misc/RepairController.java

@@ -6,7 +6,6 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -18,6 +17,8 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
+
 import stirling.software.SPDF.model.api.PDFFile;
 import stirling.software.SPDF.service.CustomPDFDocumentFactory;
 import stirling.software.SPDF.utils.ProcessExecutor;
@@ -27,15 +28,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RestController
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class RepairController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public RepairController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/repair")
     @Operation(
             summary = "Repair a PDF file",

src/main/java/stirling/software/SPDF/controller/api/misc/ReplaceAndInvertColorController.java

@@ -2,7 +2,6 @@ package stirling.software.SPDF.controller.api.misc;
 
 import java.io.IOException;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.InputStreamResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
@@ -15,22 +14,19 @@ import org.springframework.web.bind.annotation.RestController;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
+
 import stirling.software.SPDF.model.api.misc.ReplaceAndInvertColorRequest;
 import stirling.software.SPDF.service.misc.ReplaceAndInvertColorService;
 
 @RestController
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class ReplaceAndInvertColorController {
 
     private ReplaceAndInvertColorService replaceAndInvertColorService;
 
-    @Autowired
-    public ReplaceAndInvertColorController(
-            ReplaceAndInvertColorService replaceAndInvertColorService) {
-        this.replaceAndInvertColorService = replaceAndInvertColorService;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/replace-invert-pdf")
     @Operation(
             summary = "Replace-Invert Color PDF",

src/main/java/stirling/software/SPDF/controller/api/misc/ShowJavascript.java

@@ -6,7 +6,6 @@ import java.util.Map;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.common.PDNameTreeNode;
 import org.apache.pdfbox.pdmodel.interactive.action.PDActionJavaScript;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -19,6 +18,8 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
+
 import stirling.software.SPDF.model.api.PDFFile;
 import stirling.software.SPDF.service.CustomPDFDocumentFactory;
 import stirling.software.SPDF.utils.WebResponseUtils;
@@ -26,15 +27,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RestController
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class ShowJavascript {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public ShowJavascript(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/show-javascript")
     @Operation(
             summary = "Grabs all JS from a PDF and returns a single JS file with all code",

src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java

@@ -24,7 +24,6 @@ import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
 import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
 import org.apache.pdfbox.pdmodel.graphics.state.PDExtendedGraphicsState;
 import org.apache.pdfbox.util.Matrix;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
@@ -37,6 +36,8 @@ import io.github.pixee.security.Filenames;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
+import lombok.RequiredArgsConstructor;
+
 import stirling.software.SPDF.model.api.misc.AddStampRequest;
 import stirling.software.SPDF.service.CustomPDFDocumentFactory;
 import stirling.software.SPDF.utils.WebResponseUtils;
@@ -44,15 +45,11 @@ import stirling.software.SPDF.utils.WebResponseUtils;
 @RestController
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
+@RequiredArgsConstructor
 public class StampController {
 
     private final CustomPDFDocumentFactory pdfDocumentFactory;
 
-    @Autowired
-    public StampController(CustomPDFDocumentFactory pdfDocumentFactory) {
-        this.pdfDocumentFactory = pdfDocumentFactory;
-    }
-
     @PostMapping(consumes = "multipart/form-data", value = "/add-stamp")
     @Operation(
             summary = "Add stamp to a PDF file",