diff --git a/frontend/scripts/regression-data-process-wizard.mjs b/frontend/scripts/regression-data-process-wizard.mjs
index 73f43e6..f6ada64 100644
--- a/frontend/scripts/regression-data-process-wizard.mjs
+++ b/frontend/scripts/regression-data-process-wizard.mjs
@@ -129,7 +129,7 @@ assert.match(previewSource, /sourceEnd/, '第四步未使用来源结束偏移')
 assert.match(previewSource, /filterable/, '文件选择器必须可搜索')
 assert.match(previewSource, /当前文件/, '预览缺少当前文件切换器')
 assert.doesNotMatch(previewSource, /located-badge|sync-label|已定位到/, '源文件栏不应显示冗余定位提示')
-assert.match(previewSource, /const PREVIEW_PAGE_SIZE = 6/, '切片列表必须限制每页展示数量')
+assert.match(previewSource, /const PREVIEW_PAGE_SIZE = 10/, '切片列表每页应展示 10 条')
 assert.match(previewSource, /const pagedItems = computed/, '切片列表缺少分页数据')
 assert.match(previewSource, /v-for="item in pagedItems"/, '切片列表没有使用分页数据')
 assert.match(previewSource, /<el-pagination[\s\S]*:page-size="PREVIEW_PAGE_SIZE"/, '切片列表缺少分页控件')
@@ -159,6 +159,8 @@ assert.match(pdfViewerSource, /getDataProcessSourceRawUrl/, 'PDF 查看组件没
 assert.match(pdfViewerSource, /getDataProcessPdfPages/, 'PDF 查看组件没有读取页码与全文偏移映射')
 assert.match(pdfViewerSource, /pdfjs-dist/, 'PDF 查看组件没有使用可控的 PDF.js 渲染器')
 assert.match(pdfViewerSource, /TextLayer/, 'PDF 查看组件没有渲染可定位的 PDF 文字层')
+assert.match(pdfViewerSource, /page\.streamTextContent\(\)/, 'PDF 文字层没有使用兼容 WebKit 的流式读取方式')
+assert.doesNotMatch(pdfViewerSource, /page\.getTextContent\(\)/, 'PDF 文字层仍依赖 WebKit 不完整支持的 ReadableStream 异步迭代')
 assert.match(pdfViewerSource, /is-slice-highlighted/, 'PDF 查看组件没有实现选中切片高亮')
 assert.match(pdfViewerSource, /:data-page-number="currentPage"/, 'PDF 查看组件缺少当前物理页标识')
 assert.doesNotMatch(pdfViewerSource, /<iframe/, 'PDF 查看组件不应继续使用无法控制高亮的浏览器 iframe')
diff --git a/frontend/src/views/data-process/create/PdfSourceViewer.vue b/frontend/src/views/data-process/create/PdfSourceViewer.vue
index f6f619a..8c8cf08 100644
--- a/frontend/src/views/data-process/create/PdfSourceViewer.vue
+++ b/frontend/src/views/data-process/create/PdfSourceViewer.vue
@@ -220,10 +220,12 @@ async function renderCurrentPage(force = false) {
       ) return
       throw error
     })
-    const textContent = await page.getTextContent()
+    // WebKit 兼容：PDF.js 的 getTextContent() 依赖 ReadableStream 异步迭代，
+    // 部分 Safari/WKWebView 未实现该接口。TextLayer 可直接通过 getReader() 消费文本流。
+    const textContentSource = page.streamTextContent()
     if (sequence !== renderSequence) return
     const activeTextLayer = new TextLayer({
-      textContentSource: textContent,
+      textContentSource,
       container: layerContainer,
       viewport,
     })
diff --git a/frontend/src/views/data-process/create/PreviewCompareStep.vue b/frontend/src/views/data-process/create/PreviewCompareStep.vue
index 8a46856..b3f69df 100644
--- a/frontend/src/views/data-process/create/PreviewCompareStep.vue
+++ b/frontend/src/views/data-process/create/PreviewCompareStep.vue
@@ -28,7 +28,7 @@ const emit = defineEmits<{
 const sourceViewerRef = ref<HTMLElement | null>(null)
 const search = ref('')
 const currentPage = ref(1)
-const PREVIEW_PAGE_SIZE = 6
+const PREVIEW_PAGE_SIZE = 10
 const editingItemId = ref<string | null>(null)
 const editorDraft = ref('')
 const lines = computed(() => sourceLines(props.sourceText))