Update hungarian translation for editTableOfContents strings (#4165)

# Description of Changes

The Javadoc recommends wrapping Files.list(), Files.walk(),
Files.find(), and Files.lines() in try-with-resources so the stream’s
close() is called as soon as the terminal operation completes.

This is because when Stream interact with files, Java can ONLY close the
Stream during garbage-collection finalization, which is not guaranteed
to run promptly or at all before the JVM exits, creating a memory leak.

Direct quote:

> Streams have a
[BaseStream.close()](https://docs.oracle.com/javase/8/docs/api/java/util/stream/BaseStream.html#close--)
method and implement
[AutoCloseable](https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html),
but nearly all stream instances do not actually need to be closed after
use. Generally, only streams whose source is an IO channel (such as
those returned by [Files.lines(Path,
Charset)](https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#lines-java.nio.file.Path-java.nio.charset.Charset-))
will require closing. Most streams are backed by collections, arrays, or
generating functions, which require no special resource management. (If
a stream does require closing, it can be declared as a resource in a
try-with-resources statement.)

> A DirectoryStream is opened upon creation and is closed by invoking
the close method. Closing a directory stream releases any resources
associated with the stream. Failure to close the stream may result in a
resource leak. The try-with-resources statement provides a useful
construct to ensure that the stream is closed:

Sources:
https://docs.oracle.com/javase/8/docs/api/java/util/stream/Stream.html

https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/file/DirectoryStream.html

https://stackoverflow.com/questions/79078272/using-try-with-resources-for-a-java-files-walk-stream-created-in-a-separate-meth

https://stackoverflow.com/questions/36990053/resource-leak-in-files-listpath-dir-when-stream-is-not-explicitly-closed

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- What was changed
- Why the change was made
- Any challenges encountered

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---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/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/devGuide/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/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

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

---------

Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>

app/common/src/main/java/stirling/software/common/util/FileToPdf.java

@@ -124,20 +124,21 @@ public class FileToPdf {
     private static void zipDirectory(Path sourceDir, Path zipFilePath) throws IOException {
         try (ZipOutputStream zos =
                 new ZipOutputStream(new FileOutputStream(zipFilePath.toFile()))) {
-            Files.walk(sourceDir)
+            try (Stream<Path> walk = Files.walk(sourceDir)) {
-                    .filter(path -> !Files.isDirectory(path))
+                walk.filter(path -> !Files.isDirectory(path))
-                    .forEach(
+                        .forEach(
-                            path -> {
+                                path -> {
-                                ZipEntry zipEntry =
+                                    ZipEntry zipEntry =
-                                        new ZipEntry(sourceDir.relativize(path).toString());
+                                            new ZipEntry(sourceDir.relativize(path).toString());
-                                try {
+                                    try {
-                                    zos.putNextEntry(zipEntry);
+                                        zos.putNextEntry(zipEntry);
-                                    Files.copy(path, zos);
+                                        Files.copy(path, zos);
-                                    zos.closeEntry();
+                                        zos.closeEntry();
-                                } catch (IOException e) {
+                                    } catch (IOException e) {
-                                    throw new UncheckedIOException(e);
+                                        throw new UncheckedIOException(e);
-                                }
+                                    }
-                            });
+                                });
+            }
         }
     }
 

app/common/src/main/java/stirling/software/common/util/PdfUtils.java

@@ -552,10 +552,10 @@ public class PdfUtils {
     public boolean containsTextInFile(PDDocument pdfDocument, String text, String pagesToCheck)
             throws IOException {
         PDFTextStripper textStripper = new PDFTextStripper();
-        String pdfText = "";
+        StringBuilder pdfText = new StringBuilder();
 
         if (pagesToCheck == null || "all".equals(pagesToCheck)) {
-            pdfText = textStripper.getText(pdfDocument);
+            pdfText = new StringBuilder(textStripper.getText(pdfDocument));
         } else {
             // remove whitespaces
             pagesToCheck = pagesToCheck.replaceAll("\\s+", "");
@@ -571,21 +571,21 @@ public class PdfUtils {
                     for (int i = startPage; i <= endPage; i++) {
                         textStripper.setStartPage(i);
                         textStripper.setEndPage(i);
-                        pdfText += textStripper.getText(pdfDocument);
+                        pdfText.append(textStripper.getText(pdfDocument));
                     }
                 } else {
                     // Handle individual page
                     int page = Integer.parseInt(splitPoint);
                     textStripper.setStartPage(page);
                     textStripper.setEndPage(page);
-                    pdfText += textStripper.getText(pdfDocument);
+                    pdfText.append(textStripper.getText(pdfDocument));
                 }
             }
         }
 
         pdfDocument.close();
 
-        return pdfText.contains(text);
+        return pdfText.toString().contains(text);
     }
 
     public boolean pageCount(PDDocument pdfDocument, int pageCount, String comparator)

app/core/src/main/java/stirling/software/SPDF/controller/api/converters/ConvertImgPDFController.java

@@ -9,6 +9,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Stream;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
@@ -150,10 +151,11 @@ public class ConvertImgPDFController {
                                 .runCommandWithOutputHandling(command);
 
                 // Find all WebP files in the output directory
-                List<Path> webpFiles =
+                List<Path> webpFiles;
-                        Files.walk(tempOutputDir)
+                try (Stream<Path> walkStream = Files.walk(tempOutputDir)) {
-                                .filter(path -> path.toString().endsWith(".webp"))
+                    webpFiles =
-                                .toList();
+                            walkStream.filter(path -> path.toString().endsWith(".webp")).toList();
+                }
 
                 if (webpFiles.isEmpty()) {
                     log.error("No WebP files were created in: {}", tempOutputDir.toString());

app/core/src/main/java/stirling/software/SPDF/controller/api/filters/FilterController.java

@@ -48,10 +48,12 @@ public class FilterController {
         String text = request.getText();
         String pageNumber = request.getPageNumbers();
 
-        PDDocument pdfDocument = pdfDocumentFactory.load(inputFile);
+        try (PDDocument pdfDocument = pdfDocumentFactory.load(inputFile)) {
-        if (PdfUtils.hasText(pdfDocument, pageNumber, text))
+            if (PdfUtils.hasText(pdfDocument, pageNumber, text)) {
-            return WebResponseUtils.pdfDocToWebResponse(
+                return WebResponseUtils.pdfDocToWebResponse(
-                    pdfDocument, Filenames.toSimpleFileName(inputFile.getOriginalFilename()));
+                        pdfDocument, Filenames.toSimpleFileName(inputFile.getOriginalFilename()));
+            }
+        }
         return null;
     }
 

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

@@ -94,14 +94,14 @@ public class AutoRenameController {
                         // Merge lines with same font size
                         List<LineInfo> mergedLineInfos = new ArrayList<>();
                         for (int i = 0; i < lineInfos.size(); i++) {
-                            String mergedText = lineInfos.get(i).text;
+                            StringBuilder mergedText = new StringBuilder(lineInfos.get(i).text);
                             float fontSize = lineInfos.get(i).fontSize;
                             while (i + 1 < lineInfos.size()
                                     && lineInfos.get(i + 1).fontSize == fontSize) {
-                                mergedText += " " + lineInfos.get(i + 1).text;
+                                mergedText.append(" ").append(lineInfos.get(i + 1).text);
                                 i++;
                             }
-                            mergedLineInfos.add(new LineInfo(mergedText, fontSize));
+                            mergedLineInfos.add(new LineInfo(mergedText.toString(), fontSize));
                         }
 
                         // Sort lines by font size in descending order and get the first one

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

@@ -8,6 +8,7 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.stream.Stream;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
@@ -142,7 +143,10 @@ public class ExtractImageScansController {
                                 .runCommandWithOutputHandling(command);
 
                 // Read the output photos in temp directory
-                List<Path> tempOutputFiles = Files.list(tempDir).sorted().toList();
+                List<Path> tempOutputFiles;
+                try (Stream<Path> listStream = Files.list(tempDir)) {
+                    tempOutputFiles = listStream.sorted().toList();
+                }
                 for (Path tempOutputFile : tempOutputFiles) {
                     byte[] imageBytes = Files.readAllBytes(tempOutputFile);
                     processedImageBytes.add(imageBytes);

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

@@ -1,8 +1,9 @@
 package stirling.software.SPDF.controller.api.misc;
 
-import java.nio.charset.StandardCharsets;
+import io.github.pixee.security.Filenames;
-import java.util.Map;
+import io.swagger.v3.oas.annotations.Operation;
-
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.common.PDNameTreeNode;
 import org.apache.pdfbox.pdmodel.interactive.action.PDActionJavaScript;
@@ -13,17 +14,13 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
-
-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.common.model.api.PDFFile;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.WebResponseUtils;
 
+import java.nio.charset.StandardCharsets;
+import java.util.Map;
+
 @RestController
 @RequestMapping("/api/v1/misc")
 @Tag(name = "Misc", description = "Miscellaneous APIs")
@@ -38,7 +35,8 @@ public class ShowJavascript {
             description = "desc. Input:PDF Output:JS Type:SISO")
     public ResponseEntity<byte[]> extractHeader(@ModelAttribute PDFFile file) throws Exception {
         MultipartFile inputFile = file.getFileInput();
-        String script = "";
+        StringBuilder script = new StringBuilder();
+        boolean foundScript = false;
 
         try (PDDocument document = pdfDocumentFactory.load(inputFile)) {
 
@@ -55,28 +53,28 @@ public class ShowJavascript {
                         PDActionJavaScript jsAction = entry.getValue();
                         String jsCodeStr = jsAction.getAction();
 
-                        script +=
+                        if (jsCodeStr != null && !jsCodeStr.trim().isEmpty()) {
-                                "// File: "
+                            script.append("// File: ")
-                                        + Filenames.toSimpleFileName(
+                                .append(Filenames.toSimpleFileName(inputFile.getOriginalFilename()))
-                                                inputFile.getOriginalFilename())
+                                .append(", Script: ")
-                                        + ", Script: "
+                                .append(name)
-                                        + name
+                                .append("\n")
-                                        + "\n"
+                                .append(jsCodeStr)
-                                        + jsCodeStr
+                                .append("\n");
-                                        + "\n";
+                            foundScript = true;
+                        }
                     }
                 }
             }
 
-            if (script.isEmpty()) {
+            if (!foundScript) {
-                script =
+                script = new StringBuilder("PDF '")
-                        "PDF '"
+                    .append(Filenames.toSimpleFileName(inputFile.getOriginalFilename()))
-                                + Filenames.toSimpleFileName(inputFile.getOriginalFilename())
+                    .append("' does not contain Javascript");
-                                + "' does not contain Javascript";
             }
 
             return WebResponseUtils.bytesToWebResponse(
-                    script.getBytes(StandardCharsets.UTF_8),
+                    script.toString().getBytes(StandardCharsets.UTF_8),
                     Filenames.toSimpleFileName(inputFile.getOriginalFilename()) + ".js",
                     MediaType.TEXT_PLAIN);
         }

app/core/src/main/java/stirling/software/SPDF/service/SignatureService.java

@@ -7,6 +7,7 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Stream;
 
 import org.springframework.stereotype.Service;
 import org.thymeleaf.util.StringUtils;
@@ -66,10 +67,11 @@ public class SignatureService {
 
     private List<SignatureFile> getSignaturesFromFolder(Path folder, String category)
             throws IOException {
-        return Files.list(folder)
+        try (Stream<Path> stream = Files.list(folder)) {
-                .filter(path -> isImageFile(path))
+            return stream.filter(this::isImageFile)
-                .map(path -> new SignatureFile(path.getFileName().toString(), category))
+                    .map(path -> new SignatureFile(path.getFileName().toString(), category))
-                .toList();
+                    .toList();
+        }
     }
 
     public byte[] getSignatureBytes(String username, String fileName) throws IOException {

app/core/src/main/resources/messages_hu_HU.properties

@@ -1896,12 +1896,12 @@ editTableOfContents.replaceExisting=Meglévő könyvjelzők cseréje (törölje
 editTableOfContents.editorTitle=Könyvjelző szerkesztő
 editTableOfContents.editorDesc=Könyvjelzők hozzáadása és rendezése lent. Kattintson a + gombra gyermek könyvjelzők hozzáadásához.
 editTableOfContents.addBookmark=Új könyvjelző hozzáadása
-editTableOfContents.importBookmarksDefault=Import
+editTableOfContents.importBookmarksDefault=Importálás
-editTableOfContents.importBookmarksFromJsonFile=Upload JSON file
+editTableOfContents.importBookmarksFromJsonFile=JSON fájl feltöltése
-editTableOfContents.importBookmarksFromClipboard=Paste from clipboard
+editTableOfContents.importBookmarksFromClipboard=Beillesztés vágólapról
-editTableOfContents.exportBookmarksDefault=Export
+editTableOfContents.exportBookmarksDefault=Exportálás
-editTableOfContents.exportBookmarksAsJson=Download as JSON
+editTableOfContents.exportBookmarksAsJson=Letöltés JSON formátumban
-editTableOfContents.exportBookmarksAsText=Copy as text
+editTableOfContents.exportBookmarksAsText=Másolás szövegként
 editTableOfContents.desc.1=Ez az eszköz lehetővé teszi a tartalomjegyzék (könyvjelzők) hozzáadását vagy szerkesztését egy PDF dokumentumban.
 editTableOfContents.desc.2=Hierarchikus struktúrákat hozhat létre, ha gyermek könyvjelzőket ad a szülő könyvjelzőkhöz.
 editTableOfContents.desc.3=Minden könyvjelzőhöz szükséges egy cím és egy céloldalszám.