From 8e8b417f5e085dc04d84f77b72411f18e15e1116 Mon Sep 17 00:00:00 2001
From: ConnorYoh <40631091+ConnorYoh@users.noreply.github.com>
Date: Tue, 16 Sep 2025 13:08:54 +0100
Subject: [PATCH] V2 Tool - Auto split (#4446)

integrated auto split, with flattened split tool

---------

Co-authored-by: Connor Yoh <connor@stirlingpdf.com>
---
 .../public/locales/en-GB/translation.json     |  52 ++++++-
 .../src/components/shared/CardSelector.tsx    |  99 +++++++++++++
 .../components/tools/split/SplitSettings.tsx  |  57 +++++---
 .../components/tooltips/useSplitMethodTips.ts |  24 ++++
 .../tooltips/useSplitSettingsTips.ts          | 134 ++++++++++++++++++
 .../src/components/tooltips/useSplitTips.ts   |  59 --------
 frontend/src/constants/splitConstants.ts      |  57 +++++++-
 .../hooks/tools/split/useSplitOperation.ts    |   5 +
 .../hooks/tools/split/useSplitParameters.ts   |   4 +
 frontend/src/tools/Split.tsx                  |  48 ++++++-
 10 files changed, 447 insertions(+), 92 deletions(-)
 create mode 100644 frontend/src/components/shared/CardSelector.tsx
 create mode 100644 frontend/src/components/tooltips/useSplitMethodTips.ts
 create mode 100644 frontend/src/components/tooltips/useSplitSettingsTips.ts
 delete mode 100644 frontend/src/components/tooltips/useSplitTips.ts

diff --git a/frontend/public/locales/en-GB/translation.json b/frontend/public/locales/en-GB/translation.json
index b7875c314..0fd88fb07 100644
--- a/frontend/public/locales/en-GB/translation.json
+++ b/frontend/public/locales/en-GB/translation.json
@@ -684,6 +684,13 @@
     },
     "splitPages": "Enter pages to split on:",
     "submit": "Split",
+    "steps": {
+      "chooseMethod": "Choose Method",
+      "settings": "Settings"
+    },
+    "settings": {
+      "selectMethodFirst": "Please select a split method first"
+    },
     "error": {
       "failed": "An error occurred while splitting the PDF."
     },
@@ -692,12 +699,45 @@
       "placeholder": "Select how to split the PDF"
     },
     "methods": {
-      "byPages": "Split at Page Numbers",
-      "bySections": "Split by Sections",
-      "bySize": "Split by File Size",
-      "byPageCount": "Split by Page Count",
-      "byDocCount": "Split by Document Count",
-      "byChapters": "Split by Chapters"
+      "prefix": {
+        "splitAt": "Split at",
+        "splitBy": "Split by"
+      },
+      "byPages": {
+        "name": "Page Numbers",
+        "desc": "Extract specific pages (1,3,5-10)",
+        "tooltip": "Enter page numbers separated by commas or ranges with hyphens"
+      },
+      "bySections": {
+        "name": "Sections",
+        "desc": "Divide pages into grid sections",
+        "tooltip": "Split each page into horizontal and vertical sections"
+      },
+      "bySize": {
+        "name": "File Size",
+        "desc": "Limit maximum file size",
+        "tooltip": "Specify maximum file size (e.g. 10MB, 500KB)"
+      },
+      "byPageCount": {
+        "name": "Page Count",
+        "desc": "Fixed pages per file",
+        "tooltip": "Enter the number of pages for each split file"
+      },
+      "byDocCount": {
+        "name": "Document Count",
+        "desc": "Create specific number of files",
+        "tooltip": "Enter how many files you want to create"
+      },
+      "byChapters": {
+        "name": "Chapters",
+        "desc": "Split at bookmark boundaries",
+        "tooltip": "Uses PDF bookmarks to determine split points"
+      },
+      "byPageDivider": {
+        "name": "Page Divider",
+        "desc": "Auto-split with divider sheets",
+        "tooltip": "Use QR code divider sheets between documents when scanning"
+      }
     },
     "value": {
       "fileSize": {
diff --git a/frontend/src/components/shared/CardSelector.tsx b/frontend/src/components/shared/CardSelector.tsx
new file mode 100644
index 000000000..a8e4a2725
--- /dev/null
+++ b/frontend/src/components/shared/CardSelector.tsx
@@ -0,0 +1,99 @@
+import { Stack, Card, Text, Flex } from '@mantine/core';
+import { Tooltip } from './Tooltip';
+import { useTranslation } from 'react-i18next';
+
+export interface CardOption<T = string> {
+  value: T;
+  prefixKey: string;
+  nameKey: string;
+  tooltipKey?: string;
+  tooltipContent?: any[];
+}
+
+export interface CardSelectorProps<T, K extends CardOption<T>> {
+  options: K[];
+  onSelect: (value: T) => void;
+  disabled?: boolean;
+  getTooltipContent?: (option: K) => any[];
+}
+
+const CardSelector = <T, K extends CardOption<T>>({
+  options,
+  onSelect,
+  disabled = false,
+  getTooltipContent
+}: CardSelectorProps<T, K>) => {
+  const { t } = useTranslation();
+
+  const handleOptionClick = (value: T) => {
+    if (!disabled) {
+      onSelect(value);
+    }
+  };
+
+  const getTooltips = (option: K) => {
+    if (getTooltipContent) {
+      return getTooltipContent(option);
+    }
+    return [];
+  };
+
+  return (
+    <Stack gap="sm">
+      {options.map((option) => (
+        <Tooltip
+          key={option.value as string}
+          sidebarTooltip
+          tips={getTooltips(option)}
+        >
+          <Card
+            radius="md"
+            w="100%"
+            h={'2.8rem'}
+            style={{
+              cursor: disabled ? 'default' : 'pointer',
+              backgroundColor: 'var(--mantine-color-gray-2)',
+              borderColor: 'var(--mantine-color-gray-3)',
+              opacity: disabled ? 0.6 : 1,
+              display: 'flex',
+              flexDirection: 'row',
+              transition: 'all 0.2s ease',
+            }}
+            onMouseEnter={(e) => {
+              if (!disabled) {
+                e.currentTarget.style.backgroundColor = 'var(--mantine-color-gray-3)';
+                e.currentTarget.style.transform = 'translateY(-1px)';
+                e.currentTarget.style.boxShadow = '0 4px 8px rgba(0, 0, 0, 0.1)';
+              }
+            }}
+            onMouseLeave={(e) => {
+              if (!disabled) {
+                e.currentTarget.style.backgroundColor = 'var(--mantine-color-gray-2)';
+                e.currentTarget.style.transform = 'translateY(0px)';
+                e.currentTarget.style.boxShadow = 'none';
+              }
+            }}
+            onClick={() => handleOptionClick(option.value)}
+          >
+            <Flex align={'center'} pl="sm" w="100%">
+              <Text size="sm" c="dimmed" ta="center" fw={350}>
+                {t(option.prefixKey, "Prefix")}
+              </Text>
+              <Text
+                fw={600}
+                size="sm"
+                c={undefined}
+                ta="center"
+                style={{ marginLeft: '0.25rem' }}
+              >
+                {t(option.nameKey, "Option Name")}
+              </Text>
+            </Flex>
+          </Card>
+        </Tooltip>
+      ))}
+    </Stack>
+  );
+};
+
+export default CardSelector;
diff --git a/frontend/src/components/tools/split/SplitSettings.tsx b/frontend/src/components/tools/split/SplitSettings.tsx
index 98a612c41..dc7c02480 100644
--- a/frontend/src/components/tools/split/SplitSettings.tsx
+++ b/frontend/src/components/tools/split/SplitSettings.tsx
@@ -1,6 +1,7 @@
-import { Stack, TextInput, Select, Checkbox } from '@mantine/core';
+import { Stack, TextInput, Checkbox, Anchor, Text } from '@mantine/core';
+import LocalIcon from '../../shared/LocalIcon';
 import { useTranslation } from 'react-i18next';
-import { isSplitMethod, SPLIT_METHODS } from '../../../constants/splitConstants';
+import { SPLIT_METHODS } from '../../../constants/splitConstants';
 import { SplitParameters } from '../../../hooks/tools/split/useSplitParameters';
 
 export interface SplitSettingsProps {
@@ -113,32 +114,48 @@ const SplitSettings = ({
     </Stack>
   );
 
+  const renderByPageDividerForm = () => (
+    <Stack gap="sm">
+      <Anchor
+        href="https://stirlingpdf.io/files/Auto%20Splitter%20Divider%20(with%20instructions).pdf"
+        target="_blank"
+        size="sm"
+        style={{ display: 'flex', alignItems: 'center', gap: '0.5rem' }}
+      >
+        <LocalIcon icon="download-rounded" width="2rem" height="2rem" />
+        {t("autoSplitPDF.dividerDownload2", "Download 'Auto Splitter Divider (with instructions).pdf'")}
+      </Anchor>
+
+      <Checkbox
+        label={t("autoSplitPDF.duplexMode", "Duplex Mode (Front and back scanning)")}
+        checked={parameters.duplexMode}
+        onChange={(e) => onParameterChange('duplexMode', e.currentTarget.checked)}
+        disabled={disabled}
+      />
+    </Stack>
+  );
+
+  // Don't render anything if no method is selected
+  if (!parameters.method) {
+    return (
+      <Stack gap="sm">
+        <Text c="dimmed" ta="center">
+          {t("split.settings.selectMethodFirst", "Please select a split method first")}
+        </Text>
+      </Stack>
+    );
+  }
+
   return (
     <Stack gap="md">
-      {/* Method Selector */}
-      <Select
-        label={t("split.method.label", "Choose split method")}
-        placeholder={t("split.method.placeholder", "Select how to split the PDF")}
-        value={parameters.method}
-        onChange={(v) => isSplitMethod(v) && onParameterChange('method', v)}
-        disabled={disabled}
-        data={[
-          { value: SPLIT_METHODS.BY_PAGES, label: t("split.methods.byPages", "Split at Pages Numbers") },
-          { value: SPLIT_METHODS.BY_SECTIONS, label: t("split.methods.bySections", "Split by Sections") },
-          { value: SPLIT_METHODS.BY_SIZE, label: t("split.methods.bySize", "Split by Size") },
-          { value: SPLIT_METHODS.BY_PAGE_COUNT, label: t("split.methods.byPageCount", "Split by Page Count") },
-          { value: SPLIT_METHODS.BY_DOC_COUNT, label: t("split.methods.byDocCount", "Split by Document Count") },
-          { value: SPLIT_METHODS.BY_CHAPTERS, label: t("split.methods.byChapters", "Split by Chapters") },
-        ]}
-      />
-
-      {/* Parameter Form */}
+      {/* Method-Specific Form */}
       {parameters.method === SPLIT_METHODS.BY_PAGES && renderByPagesForm()}
       {parameters.method === SPLIT_METHODS.BY_SECTIONS && renderBySectionsForm()}
       {(parameters.method === SPLIT_METHODS.BY_SIZE ||
         parameters.method === SPLIT_METHODS.BY_PAGE_COUNT ||
         parameters.method === SPLIT_METHODS.BY_DOC_COUNT) && renderSplitValueForm()}
       {parameters.method === SPLIT_METHODS.BY_CHAPTERS && renderByChaptersForm()}
+      {parameters.method === SPLIT_METHODS.BY_PAGE_DIVIDER && renderByPageDividerForm()}
     </Stack>
   );
 }
diff --git a/frontend/src/components/tooltips/useSplitMethodTips.ts b/frontend/src/components/tooltips/useSplitMethodTips.ts
new file mode 100644
index 000000000..0ccead8d6
--- /dev/null
+++ b/frontend/src/components/tooltips/useSplitMethodTips.ts
@@ -0,0 +1,24 @@
+import { useTranslation } from 'react-i18next';
+import { TooltipContent } from '../../types/tips';
+
+export const useSplitMethodTips = (): TooltipContent => {
+  const { t } = useTranslation();
+
+  return {
+    header: {
+      title: t("split.methodSelection.tooltip.title", "Choose Your Split Method")
+    },
+    tips: [
+      {
+        title: t("split.methodSelection.tooltip.header.title", "Split Method Selection"),
+        description: t("split.methodSelection.tooltip.header.text", "Choose how you want to split your PDF document. Each method is optimized for different use cases and document types."),
+        bullets: [
+          t("split.methodSelection.tooltip.bullet1", "Click on a method card to select it"),
+          t("split.methodSelection.tooltip.bullet2", "Hover over each card to see a quick description"),
+          t("split.methodSelection.tooltip.bullet3", "The settings step will appear after you select a method"),
+          t("split.methodSelection.tooltip.bullet4", "You can change methods at any time before processing")
+        ]
+      }
+    ]
+  };
+};
\ No newline at end of file
diff --git a/frontend/src/components/tooltips/useSplitSettingsTips.ts b/frontend/src/components/tooltips/useSplitSettingsTips.ts
new file mode 100644
index 000000000..bfc80a7d9
--- /dev/null
+++ b/frontend/src/components/tooltips/useSplitSettingsTips.ts
@@ -0,0 +1,134 @@
+import { useTranslation } from 'react-i18next';
+import { TooltipContent } from '../../types/tips';
+import { SPLIT_METHODS, type SplitMethod } from '../../constants/splitConstants';
+
+export const useSplitSettingsTips = (method: SplitMethod | ''): TooltipContent | null => {
+  const { t } = useTranslation();
+
+  if (!method) return null;
+
+  const tooltipMap: Record<SplitMethod, TooltipContent> = {
+    [SPLIT_METHODS.BY_PAGES]: {
+      header: {
+        title: t("split.tooltip.byPages.title", "Split at Page Numbers")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.byPages.title", "Split at Page Numbers"),
+          description: t("split.tooltip.byPages.text", "Extract specific pages or ranges from your PDF. Use commas to separate individual pages and hyphens for ranges."),
+          bullets: [
+            t("split.tooltip.byPages.bullet1", "Single pages: 1,3,5"),
+            t("split.tooltip.byPages.bullet2", "Page ranges: 1-5,10-15"),
+            t("split.tooltip.byPages.bullet3", "Mixed: 1,3-7,12,15-20")
+          ]
+        }
+      ]
+    },
+
+    [SPLIT_METHODS.BY_SECTIONS]: {
+      header: {
+        title: t("split.tooltip.bySections.title", "Split by Grid Sections")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.bySections.title", "Split by Grid Sections"),
+          description: t("split.tooltip.bySections.text", "Divide each page into a grid of sections. Useful for splitting documents with multiple columns or extracting specific areas."),
+          bullets: [
+            t("split.tooltip.bySections.bullet1", "Horizontal: Number of rows to create"),
+            t("split.tooltip.bySections.bullet2", "Vertical: Number of columns to create"),
+            t("split.tooltip.bySections.bullet3", "Merge: Combine all sections into one PDF")
+          ]
+        }
+      ]
+    },
+
+    [SPLIT_METHODS.BY_SIZE]: {
+      header: {
+        title: t("split.tooltip.bySize.title", "Split by File Size")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.bySize.title", "Split by File Size"),
+          description: t("split.tooltip.bySize.text", "Create multiple PDFs that don't exceed a specified file size. Ideal for file size limitations or email attachments."),
+          bullets: [
+            t("split.tooltip.bySize.bullet1", "Use MB for larger files (e.g., 10MB)"),
+            t("split.tooltip.bySize.bullet2", "Use KB for smaller files (e.g., 500KB)"),
+            t("split.tooltip.bySize.bullet3", "System will split at page boundaries")
+          ]
+        }
+      ]
+    },
+
+    [SPLIT_METHODS.BY_PAGE_COUNT]: {
+      header: {
+        title: t("split.tooltip.byPageCount.title", "Split by Page Count")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.byPageCount.title", "Split by Page Count"),
+          description: t("split.tooltip.byPageCount.text", "Create multiple PDFs with a specific number of pages each. Perfect for creating uniform document chunks."),
+          bullets: [
+            t("split.tooltip.byPageCount.bullet1", "Enter the number of pages per output file"),
+            t("split.tooltip.byPageCount.bullet2", "Last file may have fewer pages if not evenly divisible"),
+            t("split.tooltip.byPageCount.bullet3", "Useful for batch processing workflows")
+          ]
+        }
+      ]
+    },
+
+    [SPLIT_METHODS.BY_DOC_COUNT]: {
+      header: {
+        title: t("split.tooltip.byDocCount.title", "Split by Document Count")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.byDocCount.title", "Split by Document Count"),
+          description: t("split.tooltip.byDocCount.text", "Create a specific number of output files by evenly distributing pages across them."),
+          bullets: [
+            t("split.tooltip.byDocCount.bullet1", "Enter the number of output files you want"),
+            t("split.tooltip.byDocCount.bullet2", "Pages are distributed as evenly as possible"),
+            t("split.tooltip.byDocCount.bullet3", "Useful when you need a specific number of files")
+          ]
+        }
+      ]
+    },
+
+    [SPLIT_METHODS.BY_CHAPTERS]: {
+      header: {
+        title: t("split.tooltip.byChapters.title", "Split by Chapters")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.byChapters.title", "Split by Chapters"),
+          description: t("split.tooltip.byChapters.text", "Use PDF bookmarks to automatically split at chapter boundaries. Requires PDFs with bookmark structure."),
+          bullets: [
+            t("split.tooltip.byChapters.bullet1", "Bookmark Level: Which level to split on (1=top level)"),
+            t("split.tooltip.byChapters.bullet2", "Include Metadata: Preserve document properties"),
+            t("split.tooltip.byChapters.bullet3", "Allow Duplicates: Handle repeated bookmark names")
+          ]
+        }
+      ]
+    },
+
+    [SPLIT_METHODS.BY_PAGE_DIVIDER]: {
+      header: {
+        title: t("split.tooltip.byPageDivider.title", "Split by Page Divider")
+      },
+      tips: [
+        {
+          title: t("split.tooltip.byPageDivider.title", "Split by Page Divider"),
+          description: t("split.tooltip.byPageDivider.text", "Automatically split scanned documents using physical divider sheets with QR codes. Perfect for processing multiple documents scanned together."),
+          bullets: [
+            t("split.tooltip.byPageDivider.bullet1", "Print divider sheets from the download link"),
+            t("split.tooltip.byPageDivider.bullet2", "Insert divider sheets between your documents"),
+            t("split.tooltip.byPageDivider.bullet3", "Scan all documents together as one PDF"),
+            t("split.tooltip.byPageDivider.bullet4", "Upload - divider pages are automatically detected and removed"),
+            t("split.tooltip.byPageDivider.bullet5", "Enable Duplex Mode if scanning both sides of divider sheets")
+          ]
+        }
+      ]
+    }
+  };
+
+  return tooltipMap[method];
+};
\ No newline at end of file
diff --git a/frontend/src/components/tooltips/useSplitTips.ts b/frontend/src/components/tooltips/useSplitTips.ts
deleted file mode 100644
index ff655aabe..000000000
--- a/frontend/src/components/tooltips/useSplitTips.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-import { useTranslation } from 'react-i18next';
-import { TooltipContent } from '../../types/tips';
-
-export const useSplitTips = (): TooltipContent => {
-  const { t } = useTranslation();
-
-  return {
-    header: {
-      title: t("split.tooltip.header.title", "Split Methods Overview")
-    },
-    tips: [
-      {
-        title: t("split.tooltip.byPages.title", "Split at Page Numbers"),
-        description: t("split.tooltip.byPages.text", "Extract specific pages or ranges from your PDF. Use commas to separate individual pages and hyphens for ranges."),
-        bullets: [
-          t("split.tooltip.byPages.bullet1", "Single pages: 1,3,5"),
-          t("split.tooltip.byPages.bullet2", "Page ranges: 1-5,10-15"),
-          t("split.tooltip.byPages.bullet3", "Mixed: 1,3-7,12,15-20")
-        ]
-      },
-      {
-        title: t("split.tooltip.bySections.title", "Split by Grid Sections"),
-        description: t("split.tooltip.bySections.text", "Divide each page into a grid of sections. Useful for splitting documents with multiple columns or extracting specific areas."),
-        bullets: [
-          t("split.tooltip.bySections.bullet1", "Horizontal: Number of rows to create"),
-          t("split.tooltip.bySections.bullet2", "Vertical: Number of columns to create"),
-          t("split.tooltip.bySections.bullet3", "Merge: Combine all sections into one PDF")
-        ]
-      },
-      {
-        title: t("split.tooltip.bySize.title", "Split by File Size"),
-        description: t("split.tooltip.bySize.text", "Create multiple PDFs that don't exceed a specified file size. Ideal for file size limitations or email attachments."),
-        bullets: [
-          t("split.tooltip.bySize.bullet1", "Use MB for larger files (e.g., 10MB)"),
-          t("split.tooltip.bySize.bullet2", "Use KB for smaller files (e.g., 500KB)"),
-          t("split.tooltip.bySize.bullet3", "System will split at page boundaries")
-        ]
-      },
-      {
-        title: t("split.tooltip.byCount.title", "Split by Count"),
-        description: t("split.tooltip.byCount.text", "Create multiple PDFs with a specific number of pages or documents each."),
-        bullets: [
-          t("split.tooltip.byCount.bullet1", "Page Count: Fixed number of pages per file"),
-          t("split.tooltip.byCount.bullet2", "Document Count: Fixed number of output files"),
-          t("split.tooltip.byCount.bullet3", "Useful for batch processing workflows")
-        ]
-      },
-      {
-        title: t("split.tooltip.byChapters.title", "Split by Chapters"),
-        description: t("split.tooltip.byChapters.text", "Use PDF bookmarks to automatically split at chapter boundaries. Requires PDFs with bookmark structure."),
-        bullets: [
-          t("split.tooltip.byChapters.bullet1", "Bookmark Level: Which level to split on (1=top level)"),
-          t("split.tooltip.byChapters.bullet2", "Include Metadata: Preserve document properties"),
-          t("split.tooltip.byChapters.bullet3", "Allow Duplicates: Handle repeated bookmark names")
-        ]
-      }
-    ]
-  };
-};
diff --git a/frontend/src/constants/splitConstants.ts b/frontend/src/constants/splitConstants.ts
index 896e4bc44..890f94b3c 100644
--- a/frontend/src/constants/splitConstants.ts
+++ b/frontend/src/constants/splitConstants.ts
@@ -4,7 +4,8 @@ export const SPLIT_METHODS = {
   BY_SIZE: 'bySize',
   BY_PAGE_COUNT: 'byPageCount',
   BY_DOC_COUNT: 'byDocCount',
-  BY_CHAPTERS: 'byChapters'
+  BY_CHAPTERS: 'byChapters',
+  BY_PAGE_DIVIDER: 'byPageDivider'
 } as const;
 
 
@@ -14,7 +15,8 @@ export const ENDPOINTS = {
   [SPLIT_METHODS.BY_SIZE]: 'split-by-size-or-count',
   [SPLIT_METHODS.BY_PAGE_COUNT]: 'split-by-size-or-count',
   [SPLIT_METHODS.BY_DOC_COUNT]: 'split-by-size-or-count',
-  [SPLIT_METHODS.BY_CHAPTERS]: 'split-pdf-by-chapters'
+  [SPLIT_METHODS.BY_CHAPTERS]: 'split-pdf-by-chapters',
+  [SPLIT_METHODS.BY_PAGE_DIVIDER]: 'auto-split-pdf'
 } as const;
 
 export type SplitMethod = typeof SPLIT_METHODS[keyof typeof SPLIT_METHODS];
@@ -22,4 +24,55 @@ export const isSplitMethod = (value: string | null): value is SplitMethod => {
   return Object.values(SPLIT_METHODS).includes(value as SplitMethod);
 }
 
+import { CardOption } from '../components/shared/CardSelector';
+
+export interface MethodOption extends CardOption<SplitMethod> {
+  tooltipKey: string;
+}
+
+export const METHOD_OPTIONS: MethodOption[] = [
+  {
+    value: SPLIT_METHODS.BY_PAGES,
+    prefixKey: "split.methods.prefix.splitAt",
+    nameKey: "split.methods.byPages.name",
+    tooltipKey: "split.methods.byPages.tooltip"
+  },
+  {
+    value: SPLIT_METHODS.BY_CHAPTERS,
+    prefixKey: "split.methods.prefix.splitBy",
+    nameKey: "split.methods.byChapters.name",
+    tooltipKey: "split.methods.byChapters.tooltip"
+  },
+  {
+    value: SPLIT_METHODS.BY_SECTIONS,
+    prefixKey: "split.methods.prefix.splitBy",
+    nameKey: "split.methods.bySections.name",
+    tooltipKey: "split.methods.bySections.tooltip"
+  },
+  {
+    value: SPLIT_METHODS.BY_SIZE,
+    prefixKey: "split.methods.prefix.splitBy",
+    nameKey: "split.methods.bySize.name",
+    tooltipKey: "split.methods.bySize.tooltip"
+  },
+  {
+    value: SPLIT_METHODS.BY_PAGE_COUNT,
+    prefixKey: "split.methods.prefix.splitBy",
+    nameKey: "split.methods.byPageCount.name",
+    tooltipKey: "split.methods.byPageCount.tooltip"
+  },
+  {
+    value: SPLIT_METHODS.BY_DOC_COUNT,
+    prefixKey: "split.methods.prefix.splitBy",
+    nameKey: "split.methods.byDocCount.name",
+    tooltipKey: "split.methods.byDocCount.tooltip"
+  },
+  {
+    value: SPLIT_METHODS.BY_PAGE_DIVIDER,
+    prefixKey: "split.methods.prefix.splitBy",
+    nameKey: "split.methods.byPageDivider.name",
+    tooltipKey: "split.methods.byPageDivider.tooltip"
+  }
+];
+
 
diff --git a/frontend/src/hooks/tools/split/useSplitOperation.ts b/frontend/src/hooks/tools/split/useSplitOperation.ts
index b7ad93af0..938a600d9 100644
--- a/frontend/src/hooks/tools/split/useSplitOperation.ts
+++ b/frontend/src/hooks/tools/split/useSplitOperation.ts
@@ -38,6 +38,9 @@ export const buildSplitFormData = (parameters: SplitParameters, file: File): For
       formData.append("includeMetadata", parameters.includeMetadata.toString());
       formData.append("allowDuplicates", parameters.allowDuplicates.toString());
       break;
+    case SPLIT_METHODS.BY_PAGE_DIVIDER:
+      formData.append("duplexMode", parameters.duplexMode.toString());
+      break;
     default:
       throw new Error(`Unknown split method: ${parameters.method}`);
   }
@@ -57,6 +60,8 @@ export const getSplitEndpoint = (parameters: SplitParameters): string => {
       return "/api/v1/general/split-by-size-or-count";
     case SPLIT_METHODS.BY_CHAPTERS:
       return "/api/v1/general/split-pdf-by-chapters";
+    case SPLIT_METHODS.BY_PAGE_DIVIDER:
+      return "/api/v1/misc/auto-split-pdf";
     default:
       throw new Error(`Unknown split method: ${parameters.method}`);
   }
diff --git a/frontend/src/hooks/tools/split/useSplitParameters.ts b/frontend/src/hooks/tools/split/useSplitParameters.ts
index 09b1ff1c9..8d77604e5 100644
--- a/frontend/src/hooks/tools/split/useSplitParameters.ts
+++ b/frontend/src/hooks/tools/split/useSplitParameters.ts
@@ -12,6 +12,7 @@ export interface SplitParameters extends BaseParameters {
   bookmarkLevel: string;
   includeMetadata: boolean;
   allowDuplicates: boolean;
+  duplexMode: boolean;
 }
 
 export type SplitParametersHook = BaseParametersHook<SplitParameters>;
@@ -26,6 +27,7 @@ export const defaultParameters: SplitParameters = {
   bookmarkLevel: '1',
   includeMetadata: false,
   allowDuplicates: false,
+  duplexMode: false,
 };
 
 export const useSplitParameters = (): SplitParametersHook => {
@@ -49,6 +51,8 @@ export const useSplitParameters = (): SplitParametersHook => {
           return params.splitValue.trim() !== "";
         case SPLIT_METHODS.BY_CHAPTERS:
           return params.bookmarkLevel !== "";
+        case SPLIT_METHODS.BY_PAGE_DIVIDER:
+          return true; // No required parameters
         default:
           return false;
       }
diff --git a/frontend/src/tools/Split.tsx b/frontend/src/tools/Split.tsx
index 9d4570322..96b335f5f 100644
--- a/frontend/src/tools/Split.tsx
+++ b/frontend/src/tools/Split.tsx
@@ -1,15 +1,17 @@
 import { useTranslation } from "react-i18next";
 import { createToolFlow } from "../components/tools/shared/createToolFlow";
+import CardSelector from "../components/shared/CardSelector";
 import SplitSettings from "../components/tools/split/SplitSettings";
 import { useSplitParameters } from "../hooks/tools/split/useSplitParameters";
 import { useSplitOperation } from "../hooks/tools/split/useSplitOperation";
 import { useBaseTool } from "../hooks/tools/shared/useBaseTool";
-import { useSplitTips } from "../components/tooltips/useSplitTips";
+import { useSplitMethodTips } from "../components/tooltips/useSplitMethodTips";
+import { useSplitSettingsTips } from "../components/tooltips/useSplitSettingsTips";
 import { BaseToolProps, ToolComponent } from "../types/tool";
+import { type SplitMethod, METHOD_OPTIONS, type MethodOption } from "../constants/splitConstants";
 
 const Split = (props: BaseToolProps) => {
   const { t } = useTranslation();
-  const splitTips = useSplitTips();
 
   const base = useBaseTool(
     'split',
@@ -18,6 +20,27 @@ const Split = (props: BaseToolProps) => {
     props
   );
 
+  const methodTips = useSplitMethodTips();
+  const settingsTips = useSplitSettingsTips(base.params.parameters.method);
+
+  // Get tooltip content for a specific method
+  const getMethodTooltip = (option: MethodOption) => {
+    const tooltipContent = useSplitSettingsTips(option.value);
+    return tooltipContent?.tips || [];
+  };
+
+  // Get the method name for the settings step title
+  const getSettingsTitle = () => {
+    if (!base.params.parameters.method) return t("split.steps.settings", "Settings");
+
+    const methodOption = METHOD_OPTIONS.find(option => option.value === base.params.parameters.method);
+    if (!methodOption) return t("split.steps.settings", "Settings");
+
+    const prefix = t(methodOption.prefixKey, "Split by");
+    const name = t(methodOption.nameKey, "Method Name");
+    return `${prefix} ${name}`;
+  };
+
   return createToolFlow({
     files: {
       selectedFiles: base.selectedFiles,
@@ -25,10 +48,25 @@ const Split = (props: BaseToolProps) => {
     },
     steps: [
       {
-        title: "Settings",
-        isCollapsed: base.settingsCollapsed,
+        title: t("split.steps.chooseMethod", "Choose Method"),
+        isCollapsed: !!base.params.parameters.method, // Collapse when method is selected
+        onCollapsedClick: () => base.params.updateParameter('method', '')
+        ,
+        tooltip: methodTips,
+        content: (
+          <CardSelector<SplitMethod, MethodOption>
+            options={METHOD_OPTIONS}
+            onSelect={(method) => base.params.updateParameter('method', method)}
+            disabled={base.endpointLoading}
+            getTooltipContent={getMethodTooltip}
+          />
+        ),
+      },
+      {
+        title: getSettingsTitle(),
+        isCollapsed: !base.params.parameters.method, // Collapsed until method selected
         onCollapsedClick: base.hasResults ? base.handleSettingsReset : undefined,
-        tooltip: splitTips,
+        tooltip: settingsTips || undefined,
         content: (
           <SplitSettings
             parameters={base.params.parameters}