Resolve wkhtml and formatting

src/main/java/stirling/software/SPDF/controller/api/pipeline/ApiDocService.java

@@ -2,6 +2,7 @@ package stirling.software.SPDF.controller.api.pipeline;
 
 import java.util.Arrays;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -23,7 +24,7 @@ import jakarta.servlet.ServletContext;
 import stirling.software.SPDF.SPdfApplication;
 import stirling.software.SPDF.model.ApiEndpoint;
 import stirling.software.SPDF.model.Role;
-import java.util.List;
+
 @Service
 public class ApiDocService {
 
@@ -39,13 +40,20 @@ public class ApiDocService {
 
         return "http://localhost:" + port + contextPath + "/v1/api-docs";
     }
+
     Map<String, List<String>> outputToFileTypes = new HashMap<>();
 
     public List getExtensionTypes(boolean output, String operationName) {
         if (outputToFileTypes.size() == 0) {
             outputToFileTypes.put("PDF", Arrays.asList("pdf"));
-	        outputToFileTypes.put("IMAGE", Arrays.asList("png", "jpg", "jpeg", "gif", "webp", "bmp", "tif", "tiff", "svg", "psd", "ai", "eps"));
+            outputToFileTypes.put(
-	        outputToFileTypes.put("ZIP", Arrays.asList("zip", "rar", "7z", "tar", "gz", "bz2", "xz", "lz", "lzma", "z"));
+                    "IMAGE",
+                    Arrays.asList(
+                            "png", "jpg", "jpeg", "gif", "webp", "bmp", "tif", "tiff", "svg", "psd",
+                            "ai", "eps"));
+            outputToFileTypes.put(
+                    "ZIP",
+                    Arrays.asList("zip", "rar", "7z", "tar", "gz", "bz2", "xz", "lz", "lzma", "z"));
             outputToFileTypes.put("WORD", Arrays.asList("doc", "docx", "odt", "rtf"));
             outputToFileTypes.put("CSV", Arrays.asList("csv"));
             outputToFileTypes.put("JS", Arrays.asList("js", "jsx"));
@@ -54,7 +62,12 @@ public class ApiDocService {
             outputToFileTypes.put("TXT", Arrays.asList("txt", "text", "md", "markdown"));
             outputToFileTypes.put("PPT", Arrays.asList("ppt", "pptx", "odp"));
             outputToFileTypes.put("XML", Arrays.asList("xml", "xsd", "xsl"));
-	        outputToFileTypes.put("BOOK", Arrays.asList("epub", "mobi", "azw3", "fb2", "txt", "docx")); // As noted before, "Boolean" isn't a file type but a value type.
+            outputToFileTypes.put(
+                    "BOOK",
+                    Arrays.asList(
+                            "epub", "mobi", "azw3", "fb2", "txt",
+                            "docx")); // As noted before, "Boolean" isn't a file type but a value
+            // type.
         }
 
         if (apiDocsJsonRootNode == null || apiDocumentation.size() == 0) {

src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineProcessor.java

@@ -89,8 +89,6 @@ public class PipelineProcessor {
             }
             // List outputFileTypes = apiDocService.getExtensionTypes(true, operation);
 
-
-
             String url = getBaseUrl() + operation;
 
             List<Resource> newOutputFiles = new ArrayList<>();
@@ -109,11 +107,13 @@ public class PipelineProcessor {
 
                             ResponseEntity<byte[]> response = sendWebRequest(url, body);
 
-	                        // If the operation is filter and the response body is null or empty, skip
+                            // If the operation is filter and the response body is null or empty,
+                            // skip
                             // this
                             // file
                             if (operation.startsWith("filter-")
-	                                && (response.getBody() == null || response.getBody().length == 0)) {
+                                    && (response.getBody() == null
+                                            || response.getBody().length == 0)) {
                                 logger.info("Skipping file due to failing {}", operation);
                                 continue;
                             }
@@ -146,7 +146,10 @@ public class PipelineProcessor {
                     final List<String> finalinputFileTypes = inputFileTypes;
                     matchingFiles =
                             outputFiles.stream()
-            	                   .filter(file -> finalinputFileTypes.stream().anyMatch(file.getFilename()::endsWith))
+                                    .filter(
+                                            file ->
+                                                    finalinputFileTypes.stream()
+                                                            .anyMatch(file.getFilename()::endsWith))
                                     .collect(Collectors.toList());
                 }
 
@@ -168,10 +171,7 @@ public class PipelineProcessor {
 
                     // Handle the response
                     if (response.getStatusCode().equals(HttpStatus.OK)) {
-                        processOutputFiles(
+                        processOutputFiles(operation, response, newOutputFiles);
-                                operation,
-                                response,
-                                newOutputFiles);
                     } else {
                         // Log error if the response status is not OK
                         logPrintStream.println(
@@ -236,9 +236,7 @@ public class PipelineProcessor {
     }
 
     private List<Resource> processOutputFiles(
-            String operation,
+            String operation, ResponseEntity<byte[]> response, List<Resource> newOutputFiles)
-            ResponseEntity<byte[]> response,
-            List<Resource> newOutputFiles)
             throws IOException {
         // Define filename
         String newFilename;

src/main/java/stirling/software/SPDF/utils/FileToPdf.java

@@ -63,7 +63,13 @@ public class FileToPdf {
             }
 
             pdfBytes = Files.readAllBytes(tempOutputFile);
+        } catch (IOException e) {
+            pdfBytes = Files.readAllBytes(tempOutputFile);
+            if (pdfBytes.length < 1) {
+                throw e;
+            }
         } finally {
+
             // Clean up temporary files
             Files.delete(tempOutputFile);
             Files.delete(tempInputFile);