exception

common/src/main/java/stirling/software/common/service/CustomPDFDocumentFactory.java

@@ -411,7 +411,7 @@ public class CustomPDFDocumentFactory {
             try {
                 document.setAllSecurityToBeRemoved(true);
             } catch (Exception e) {
-                log.error("Decryption failed", e);
+                ExceptionUtils.logException("PDF decryption", e);
                 throw new IOException("PDF decryption failed", e);
             }
         }

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/MergeController.java

@@ -148,7 +148,7 @@ public class MergeController {
             try (PDDocument doc = pdfDocumentFactory.load(file)) {
                 pageIndex += doc.getNumberOfPages();
             } catch (IOException e) {
-                log.error("Error loading document for TOC generation", e);
+                ExceptionUtils.logException("document loading for TOC generation", e);
                 pageIndex++; // Increment by at least one if we can't determine page count
             }
         }
@@ -240,7 +240,11 @@ public class MergeController {
                     baos, mergedFileName); // Return the modified PDF
 
         } catch (Exception ex) {
-            log.error("Error in merge pdf process", ex);
+            if (ex instanceof IOException && PdfErrorUtils.isCorruptedPdfError((IOException) ex)) {
+                log.warn("Corrupted PDF detected in merge pdf process: {}", ex.getMessage());
+            } else {
+                log.error("Error in merge pdf process", ex);
+            }
             throw ex;
         } finally {
             if (mergedDocument != null) {

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/RearrangePagesPDFController.java

@@ -25,6 +25,7 @@ import stirling.software.SPDF.model.SortTypes;
 import stirling.software.SPDF.model.api.PDFWithPageNums;
 import stirling.software.SPDF.model.api.general.RearrangePagesRequest;
 import stirling.software.common.service.CustomPDFDocumentFactory;
+import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
 import stirling.software.common.util.WebResponseUtils;
 
@@ -288,7 +289,7 @@ public class RearrangePagesPDFController {
                                     .replaceFirst("[.][^.]+$", "")
                             + "_rearranged.pdf");
         } catch (IOException e) {
-            log.error("Failed rearranging documents", e);
+            ExceptionUtils.logException("document rearrangement", e);
             throw e;
         }
     }

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/SplitPDFController.java

@@ -29,6 +29,7 @@ import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.model.api.PDFWithPageNums;
 import stirling.software.common.service.CustomPDFDocumentFactory;
+import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.WebResponseUtils;
 
 @RestController
@@ -96,7 +97,7 @@ public class SplitPDFController {
 
                     splitDocumentsBoas.add(baos);
                 } catch (Exception e) {
-                    log.error("Failed splitting documents and saving them", e);
+                    ExceptionUtils.logException("document splitting and saving", e);
                     throw e;
                 }
             }

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/SplitPdfByChaptersController.java

@@ -159,7 +159,7 @@ public class SplitPdfByChaptersController {
                 Bookmark lastBookmark = bookmarks.get(bookmarks.size() - 1);
 
             } catch (Exception e) {
-                log.error("Unable to extract outline items", e);
+                ExceptionUtils.logException("outline extraction", e);
                 return ResponseEntity.internalServerError()
                         .body("Unable to extract outline items".getBytes());
             }
@@ -294,7 +294,7 @@ public class SplitPdfByChaptersController {
 
                 splitDocumentsBoas.add(baos);
             } catch (Exception e) {
-                log.error("Failed splitting documents and saving them", e);
+                ExceptionUtils.logException("document splitting and saving", e);
                 throw e;
             }
         }

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/SplitPdfBySizeController.java

@@ -105,7 +105,7 @@ public class SplitPdfBySizeController {
 
                     log.debug("PDF splitting completed successfully");
                 } catch (Exception e) {
-                    log.error("Error loading or processing PDF document", e);
+                    ExceptionUtils.logException("PDF document loading or processing", e);
                     throw e;
                 }
             } catch (IOException e) {
@@ -114,7 +114,7 @@ public class SplitPdfBySizeController {
             }
 
         } catch (Exception e) {
-            log.error("Exception during PDF splitting process", e);
+            ExceptionUtils.logException("PDF splitting process", e);
             throw e; // Re-throw to ensure proper error response
         } finally {
             try {
@@ -278,7 +278,7 @@ public class SplitPdfBySizeController {
             currentDoc = pdfDocumentFactory.createNewDocumentBasedOnOldDocument(sourceDocument);
             log.debug("Successfully created initial output document");
         } catch (Exception e) {
-            log.error("Error creating initial output document", e);
+            ExceptionUtils.logException("initial output document creation", e);
             throw ExceptionUtils.createFileProcessingException("split", e);
         }
 

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/misc/CompressController.java

@@ -606,7 +606,7 @@ public class CompressController {
                 return "empty-stream";
             }
         } catch (Exception e) {
-            log.error("Error generating image hash", e);
+            ExceptionUtils.logException("image hash generation", e);
             return "fallback-" + System.identityHashCode(image);
         }
     }

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

@@ -26,6 +26,7 @@ import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.common.model.api.PDFFile;
 import stirling.software.common.service.CustomPDFDocumentFactory;
+import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.WebResponseUtils;
 
 @RestController
@@ -134,7 +135,7 @@ public class DecompressPdfController {
                 stream.setInt(COSName.LENGTH, decompressedBytes.length);
             }
         } catch (IOException e) {
-            log.error("Error decompressing stream", e);
+            ExceptionUtils.logException("stream decompression", e);
             // Continue processing other streams even if this one fails
         }
     }

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

@@ -113,10 +113,7 @@ public class ExtractImagesController {
                                                 allowDuplicates);
                                     } catch (IOException e) {
                                         // Log the error and continue processing other pages
-                                        log.error(
+                                        ExceptionUtils.logException("image extraction from page " + pageNum, e);
-                                                "Error extracting images from page {}: {}",
-                                                pageNum,
-                                                e.getMessage());
                                     }
 
                                     return null; // Callable requires a return type

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

@@ -150,11 +150,18 @@ public class PipelineProcessor {
                         }
                     }
                     if (!hasInputFileType) {
+                        String filename = file.getFilename();
+                        String providedExtension = "no extension";
+                        if (filename != null && filename.contains(".")) {
+                            providedExtension = filename.substring(filename.lastIndexOf(".")).toLowerCase();
+                        }
+                        
                         logPrintStream.println(
                                 "No files with extension "
                                         + String.join(", ", inputFileTypes)
                                         + " found for operation "
-                                        + operation);
+                                        + operation
+                                        + ". Provided file '" + filename + "' has extension: " + providedExtension);
                         hasErrors = true;
                     }
                 }
@@ -203,11 +210,26 @@ public class PipelineProcessor {
                         hasErrors = true;
                     }
                 } else {
+                    // Get details about what files were actually provided
+                    List<String> providedExtensions = outputFiles.stream()
+                            .map(file -> {
+                                String filename = file.getFilename();
+                                if (filename != null && filename.contains(".")) {
+                                    return filename.substring(filename.lastIndexOf(".")).toLowerCase();
+                                }
+                                return "no extension";
+                            })
+                            .distinct()
+                            .toList();
+                    
                     logPrintStream.println(
                             "No files with extension "
                                     + String.join(", ", inputFileTypes)
                                     + " found for multi-input operation "
-                                    + operation);
+                                    + operation
+                                    + ". Provided files have extensions: "
+                                    + String.join(", ", providedExtensions)
+                                    + " (total files: " + outputFiles.size() + ")");
                     hasErrors = true;
                 }
             }

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java

@@ -133,7 +133,7 @@ public class CertSignController {
             }
             doc.saveIncremental(output);
         } catch (Exception e) {
-            log.error("exception", e);
+            ExceptionUtils.logException("PDF signing", e);
         }
     }
 

stirling-pdf/src/main/java/stirling/software/SPDF/controller/api/security/GetInfoOnPDF.java

@@ -63,6 +63,7 @@ import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.common.model.api.PDFFile;
 import stirling.software.common.service.CustomPDFDocumentFactory;
+import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.WebResponseUtils;
 
 @RestController
@@ -181,7 +182,7 @@ public class GetInfoOnPDF {
                 }
             }
         } catch (Exception e) {
-            log.error("exception", e);
+            ExceptionUtils.logException("PDF standard checking", e);
         }
 
         return false;

stirling-pdf/src/main/java/stirling/software/SPDF/service/MetricsAggregatorService.java

@@ -77,7 +77,7 @@ public class MetricsAggregatorService {
                             double lastCount = lastSentMetrics.getOrDefault(key, 0.0);
                             double difference = currentCount - lastCount;
                             if (difference > 0) {
-                                logger.info("{}, {}", key, difference);
+                                logger.debug("{}, {}", key, difference);
                                 metrics.put(key, difference);
                                 lastSentMetrics.put(key, currentCount);
                             }