logging and try catch

src/main/java/stirling/software/SPDF/model/api/PDFWithPageNums.java

@@ -5,6 +5,8 @@ import java.util.List;
 
 import org.apache.pdfbox.Loader;
 import org.apache.pdfbox.pdmodel.PDDocument;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import io.swagger.v3.oas.annotations.Hidden;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -19,6 +21,8 @@ import stirling.software.SPDF.utils.GeneralUtils;
 @EqualsAndHashCode(callSuper = true)
 public class PDFWithPageNums extends PDFFile {
 
+    private static final Logger logger = LoggerFactory.getLogger(PDFWithPageNums.class);
+
     @Schema(
             description =
                     "The pages to select, Supports ranges (e.g., '1,3,5-9'), or 'all' or functions in the format 'an+b' where 'a' is the multiplier of the page number 'n', and 'b' is a constant (e.g., '2n+1', '3n', '6n-5')\"")
@@ -31,7 +35,7 @@ public class PDFWithPageNums extends PDFFile {
             pageCount = Loader.loadPDF(getFileInput().getBytes()).getNumberOfPages();
         } catch (IOException e) {
             // TODO Auto-generated catch block
-            e.printStackTrace();
+            logger.error("exception", e);
         }
         return GeneralUtils.parsePageList(pageNumbers, pageCount, zeroCount);
     }