Added option to split PDF into multiple parts and merge into one PDF (#841)

* Added option to split PDF into multiple parts and merge into one PDF * Use the mergeDocuments method in MergeController to implement merging --------- Co-authored-by: Eric <71648843+sbplat@users.noreply.github.com>
2025-10-25 11:17:28 +02:00 · 2024-02-25 04:26:35 +08:00 · 2024-02-25 04:26:35 +08:00 · c8a37245fa
commit c8a37245fa
parent af68c70239
32 changed files with 52 additions and 34 deletions
--- a/pipeline/defaultWebUIConfigs/split-rotate-auto-rename.json
+++ b/pipeline/defaultWebUIConfigs/split-rotate-auto-rename.json
@ -6,7 +6,8 @@
      "parameters": {
        "horizontalDivisions": 2,
        "verticalDivisions": 2,
-        "fileInput": "automated"
+        "fileInput": "automated",
+        "merge": false
      }
    },
    {
@ -30,4 +31,4 @@
  },
  "outputDir": "{outputFolder}",
  "outputFileName": "{filename}"
-}
+}
--- a/src/main/java/stirling/software/SPDF/controller/api/MergeController.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/MergeController.java
@ -38,7 +38,7 @@ public class MergeController {

    private static final Logger logger = LoggerFactory.getLogger(MergeController.class);

-    private PDDocument mergeDocuments(List<PDDocument> documents) throws IOException {
+    public PDDocument mergeDocuments(List<PDDocument> documents) throws IOException {
        PDDocument mergedDoc = new PDDocument();
        for (PDDocument doc : documents) {
            for (PDPage page : doc.getPages()) {
--- a/src/main/java/stirling/software/SPDF/controller/api/SplitPdfBySectionsController.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/SplitPdfBySectionsController.java
@ -53,8 +53,21 @@ public class SplitPdfBySectionsController {
        // Process the PDF based on split parameters
        int horiz = request.getHorizontalDivisions() + 1;
        int verti = request.getVerticalDivisions() + 1;
-
+        boolean merge = request.isMerge();
        List<PDDocument> splitDocuments = splitPdfPages(sourceDocument, verti, horiz);
+
+        String filename =
+                Filenames.toSimpleFileName(file.getOriginalFilename())
+                        .replaceFirst("[.][^.]+$", "");
+        if (merge) {
+            MergeController mergeController = new MergeController();
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            mergeController.mergeDocuments(splitDocuments).save(baos);
+            return WebResponseUtils.bytesToWebResponse(
+                    baos.toByteArray(),
+                    filename + "_split.pdf",
+                    MediaType.APPLICATION_OCTET_STREAM);
+        }
        for (PDDocument doc : splitDocuments) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            doc.save(baos);
@ -65,9 +78,6 @@ public class SplitPdfBySectionsController {
        sourceDocument.close();

        Path zipFile = Files.createTempFile("split_documents", ".zip");
-        String filename =
-                Filenames.toSimpleFileName(file.getOriginalFilename())
-                        .replaceFirst("[.][^.]+$", "");
        byte[] data;

        try (ZipOutputStream zipOut = new ZipOutputStream(Files.newOutputStream(zipFile))) {
@ -145,4 +155,5 @@ public class SplitPdfBySectionsController {

        return splitDocuments;
    }
+
 }
--- a/src/main/java/stirling/software/SPDF/model/api/SplitPdfBySectionsRequest.java
+++ b/src/main/java/stirling/software/SPDF/model/api/SplitPdfBySectionsRequest.java
@ -15,4 +15,7 @@ public class SplitPdfBySectionsRequest extends PDFFile {

    @Schema(description = "Number of vertical divisions for each PDF page", example = "2")
    private int verticalDivisions;
+
+    @Schema(description = "Merge the split documents into a single PDF", example = "true")
+    private boolean merge;
 }
--- a/src/main/resources/messages_ar_AR.properties
+++ b/src/main/resources/messages_ar_AR.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_bg_BG.properties
+++ b/src/main/resources/messages_bg_BG.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_ca_CA.properties
+++ b/src/main/resources/messages_ca_CA.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_de_DE.properties
+++ b/src/main/resources/messages_de_DE.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertikale Teiler
 split-by-sections.horizontal.placeholder=Anzahl horizontaler Teiler eingeben
 split-by-sections.vertical.placeholder=Anzahl vertikaler Teiler eingeben
 split-by-sections.submit=PDF teilen
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Lizenzen
--- a/src/main/resources/messages_el_GR.properties
+++ b/src/main/resources/messages_el_GR.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_en_GB.properties
+++ b/src/main/resources/messages_en_GB.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_en_US.properties
+++ b/src/main/resources/messages_en_US.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_es_ES.properties
+++ b/src/main/resources/messages_es_ES.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Divisiones Verticales
 split-by-sections.horizontal.placeholder=Introduzca el número de divisiones horizontales
 split-by-sections.vertical.placeholder=Introduzca el número de divisiones verticales
 split-by-sections.submit=Dividir PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licencias
--- a/src/main/resources/messages_eu_ES.properties
+++ b/src/main/resources/messages_eu_ES.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_fr_FR.properties
+++ b/src/main/resources/messages_fr_FR.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Divisions verticales
 split-by-sections.horizontal.placeholder=Saisir le nombre de divisions horizontales
 split-by-sections.vertical.placeholder=Entrer le nombre de divisions verticales
 split-by-sections.submit=Diviser le PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licences
--- a/src/main/resources/messages_hi_IN.properties
+++ b/src/main/resources/messages_hi_IN.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=लंबवत विभाजन
 split-by-sections.horizontal.placeholder=क्षैतिज विभाजन की संख्या दर्ज करें
 split-by-sections.vertical.placeholder=लंबवत विभाजन की संख्या दर्ज करें
 split-by-sections.submit=PDF को विभाजित करें
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_hu_HU.properties
+++ b/src/main/resources/messages_hu_HU.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vízszintes szakaszok
 split-by-sections.horizontal.placeholder=Adja meg a vízszintes szakaszok számát
 split-by-sections.vertical.placeholder=Adja meg a függőleges szakaszok számát
 split-by-sections.submit=Felosztás
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_id_ID.properties
+++ b/src/main/resources/messages_id_ID.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Pembagian Vertikal
 split-by-sections.horizontal.placeholder=Input angka untuk pembagian horizontal
 split-by-sections.vertical.placeholder=Input angka untuk pembagian vertikal
 split-by-sections.submit=Pisahkan PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_it_IT.properties
+++ b/src/main/resources/messages_it_IT.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Divisioni verticali
 split-by-sections.horizontal.placeholder=Inserire il numero di divisioni orizzontali
 split-by-sections.vertical.placeholder=Inserire il numero di divisioni verticali
 split-by-sections.submit=Dividi PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenze
--- a/src/main/resources/messages_ja_JP.properties
+++ b/src/main/resources/messages_ja_JP.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=垂直方向
 split-by-sections.horizontal.placeholder=水平方向の分割数を選択
 split-by-sections.vertical.placeholder=垂直方向の分割数を選択
 split-by-sections.submit=分割
-
+split-by-sections.merge=1 つの PDF に結合するかどうか

 #licenses
 licenses.nav=ライセンス
--- a/src/main/resources/messages_ko_KR.properties
+++ b/src/main/resources/messages_ko_KR.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_nl_NL.properties
+++ b/src/main/resources/messages_nl_NL.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Verticale secties
 split-by-sections.horizontal.placeholder=Voer het aantal horizontale secties in
 split-by-sections.vertical.placeholder=Voer het aantal verticale secties in
 split-by-sections.submit=PDF splitsen
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenties
--- a/src/main/resources/messages_pl_PL.properties
+++ b/src/main/resources/messages_pl_PL.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_pt_BR.properties
+++ b/src/main/resources/messages_pt_BR.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_pt_PT.properties
+++ b/src/main/resources/messages_pt_PT.properties
@ -958,7 +958,7 @@ split-by-sections.vertical.label=Divisões Verticais
 split-by-sections.horizontal.placeholder=Introduza o número de divisões horizontais
 split-by-sections.vertical.placeholder=Introduza o número de divisões verticais
 split-by-sections.submit=Dividir PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenças
--- a/src/main/resources/messages_ro_RO.properties
+++ b/src/main/resources/messages_ro_RO.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_ru_RU.properties
+++ b/src/main/resources/messages_ru_RU.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_sr_LATN_RS.properties
+++ b/src/main/resources/messages_sr_LATN_RS.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertikalne podele
 split-by-sections.horizontal.placeholder=Unesite broj horizontalnih podele
 split-by-sections.vertical.placeholder=Unesite broj vertikalnih podele
 split-by-sections.submit=Razdvoji PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_sv_SE.properties
+++ b/src/main/resources/messages_sv_SE.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_tr_TR.properties
+++ b/src/main/resources/messages_tr_TR.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=Vertical Divisions
 split-by-sections.horizontal.placeholder=Enter number of horizontal divisions
 split-by-sections.vertical.placeholder=Enter number of vertical divisions
 split-by-sections.submit=Split PDF
-
+split-by-sections.merge=Merge Into One PDF

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_zh_CN.properties
+++ b/src/main/resources/messages_zh_CN.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=垂直分割
 split-by-sections.horizontal.placeholder=输入水平分割数
 split-by-sections.vertical.placeholder=输入垂直分割数
 split-by-sections.submit=分割PDF
-
+split-by-sections.merge=是否合并为一个pdf

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/messages_zh_TW.properties
+++ b/src/main/resources/messages_zh_TW.properties
@ -960,7 +960,7 @@ split-by-sections.vertical.label=垂直劃分
 split-by-sections.horizontal.placeholder=輸入水平劃分的數量
 split-by-sections.vertical.placeholder=輸入垂直劃分的數量
 split-by-sections.submit=分割 PDF
-
+split-by-sections.merge=是否合併為一個pdf

 #licenses
 licenses.nav=Licenses
--- a/src/main/resources/templates/split-pdf-by-sections.html
+++ b/src/main/resources/templates/split-pdf-by-sections.html
@ -23,6 +23,9 @@
                  <label for="verticalDivisions" th:text="#{split-by-sections.vertical.label}">Vertical Divisions</label>
                  <input type="number" id="verticalDivisions" name="verticalDivisions" class="form-control" min="0" max="300" required value="1" th:placeholder="#{split-by-sections.vertical.placeholder}">
                  <br>
+                  <label for="verticalDivisions" th:text="#{split-by-sections.merge}">merge PDFs into one</label>
+                  <input type="checkbox" id="merge" name="merge" th:placeholder="#{split-by-sections.merge}">
+                  <br>
                  <div id="pdfVisualAid" class="pdf-visual-aid"></div>
                  <script>
                    function updateVisualAid() {