{"id":9614,"date":"2026-11-06T14:21:12","date_gmt":"2026-11-06T06:21:12","guid":{"rendered":"https:\/\/support.fuxinsoft.cn\/?p=9614&preview=true&preview_id=9614"},"modified":"2026-11-06T14:21:13","modified_gmt":"2026-11-06T06:21:13","slug":"%e5%a6%82%e4%bd%95%e7%bb%9f%e8%ae%a1-pdf-%e6%af%8f%e9%a1%b5%e7%9a%84%e5%9b%be%e5%bd%a2%e5%af%b9%e8%b1%a1%e6%95%b0%e9%87%8f%ef%bc%88%e5%90%ab%e6%8c%89%e7%b1%bb%e5%9e%8b%e7%bb%86%e5%88%86%ef%bc%89","status":"publish","type":"post","link":"https:\/\/support.fuxinsoft.cn\/?p=9614","title":{"rendered":"\u5982\u4f55\u7edf\u8ba1 PDF \u6bcf\u9875\u7684\u56fe\u5f62\u5bf9\u8c61\u6570\u91cf\uff08\u542b\u6309\u7c7b\u578b\u7ec6\u5206\uff09"},"content":{"rendered":"

\u9002\u7528\u4ea7\u54c1\uff1a\u798f\u6615 PDF SDK for Web\uff08UIExtension \/ PDFViewCtrl\uff09\uff5c \u63a5\u53e3\u8d77\u59cb\u7248\u672c\uff1a7.4.0\uff0c\u672c\u6587\u63a5\u53e3\u5728 11.1 \u9a8c\u8bc1<\/p>\n

PDF \u9875\u9762\u91cc\u7684\u56fe\u5f62\u5bf9\u8c61\uff08GraphicsObject\uff09\u5206\u4e3a\u6587\u672c\u3001\u8def\u5f84\u3001\u56fe\u50cf\u3001\u6e10\u53d8\u7740\u8272\u3001Form XObject \u4e94\u7c7b\u3002\u5728\u505a\u5185\u5bb9\u5ba1\u6838\u3001\u56fe\u7eb8\u89e3\u6790\u3001\u6e32\u67d3\u8017\u65f6\u9884\u4f30\u3001\u6309\u9875\u5206\u7247\u5904\u7406\u8fd9\u7c7b\u9700\u6c42\u65f6\uff0c\u901a\u5e38\u9700\u8981\u5148\u77e5\u9053\u6bcf\u4e00\u9875\u5230\u5e95\u6709\u591a\u5c11\u4e2a\u56fe\u5f62\u5bf9\u8c61\u3002\u672c\u6587\u7ed9\u51fa\u53ef\u76f4\u63a5\u4f7f\u7528\u7684\u63a5\u53e3\u8c03\u7528\u65b9\u5f0f\u3001\u6309\u7c7b\u578b\u7ec6\u5206\u7684\u4e24\u6761\u5b9e\u73b0\u8def\u7ebf\uff0c\u4ee5\u53ca\u5728\u4e0d\u540c\u6587\u6863\u89c4\u6a21\u4e0b\u8be5\u600e\u4e48\u9009\u3002<\/p>\n

\u4e00\u3001\u63a5\u53e3\u4e00\u89c8<\/h2>\n

\u7edf\u8ba1\u76f8\u5173\u7684\u65b9\u6cd5\u90fd\u5728 PDFPage<\/code> \u4e0a\uff0cGraphicsObject<\/code> \u63d0\u4f9b\u7c7b\u578b\u4fe1\u606f\u3002\u8c03\u7528\u524d\u8bf7\u5148\u786e\u8ba4\u7248\u672c\uff0cgetGraphicsObjectsCount<\/code> \u81ea 7.4.0 \u8d77\u63d0\u4f9b\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u63a5\u53e3<\/th>\n\u53c2\u6570<\/th>\n\u8fd4\u56de\u503c<\/th>\n\u8d77\u59cb\u7248\u672c<\/th>\n\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n
PDFDoc.getPageCount()<\/code><\/td>\n\u65e0<\/td>\nnumber<\/code>\uff08\u540c\u6b65\uff09<\/td>\n\u2014<\/td>\n\u53d6\u603b\u9875\u6570<\/td>\n<\/tr>\n
PDFDoc.getPageByIndex(index)<\/code><\/td>\nindex: number<\/code><\/td>\nPromise<PDFPage><\/code><\/td>\n\u2014<\/td>\n\u53d6\u6307\u5b9a\u9875<\/td>\n<\/tr>\n
PDFPage.getGraphicsObjectsCount()<\/code><\/td>\n\u65e0<\/td>\nPromise<number><\/code><\/td>\n7.4.0<\/td>\n\u53d6\u672c\u9875\u56fe\u5f62\u5bf9\u8c61\u603b\u6570<\/td>\n<\/tr>\n
PDFPage.getGraphicsObjectByIndex(index)<\/code><\/td>\nindex: number<\/code><\/td>\nPromise<GraphicsObject><\/code><\/td>\n7.3.0<\/td>\n\u53d6\u7b2c index \u4e2a\u5bf9\u8c61<\/td>\n<\/tr>\n
GraphicsObject.getType()<\/code><\/td>\n\u65e0<\/td>\nnumber<\/code>\uff08Graphics_ObjectType<\/code>\uff09<\/td>\n7.4.0<\/td>\n\u53d6\u5bf9\u8c61\u7c7b\u578b<\/td>\n<\/tr>\n
PDFPage.getGraphicsObjectsByRect(options)<\/code><\/td>\noptions<\/code> \u89c1\u4e0b<\/td>\nPromise<GraphicsObject[]><\/code><\/td>\n8.5.0<\/td>\n\u6309\u77e9\u5f62\u4e0e\u7c7b\u578b\u7b5b\u9009<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Graphics_ObjectType<\/code> \u679a\u4e3e\u5b9a\u4e49\u5728 PDFViewCtrl.PDF.constant.Graphics_ObjectType<\/code>\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u6210\u5458<\/th>\n\u503c<\/th>\n\u542b\u4e49<\/th>\n\u6309\u77e9\u5f62\u67e5\u8be2\u652f\u6301<\/th>\n<\/tr>\n<\/thead>\n
All<\/code><\/td>\n0<\/td>\n\u5168\u90e8\u7c7b\u578b\uff0c\u4ec5\u4f5c\u8fc7\u6ee4\u7528<\/td>\n\u662f<\/td>\n<\/tr>\n
Text<\/code><\/td>\n1<\/td>\n\u6587\u672c\u5bf9\u8c61<\/td>\n\u662f<\/td>\n<\/tr>\n
Path<\/code><\/td>\n2<\/td>\n\u8def\u5f84\/\u77e2\u91cf\u56fe\u5f62\u5bf9\u8c61<\/td>\n\u662f<\/td>\n<\/tr>\n
Image<\/code><\/td>\n3<\/td>\n\u56fe\u50cf\u5bf9\u8c61<\/td>\n\u662f<\/td>\n<\/tr>\n
Shading<\/code><\/td>\n4<\/td>\n\u6e10\u53d8\u7740\u8272\u5bf9\u8c61<\/td>\n\u662f<\/td>\n<\/tr>\n
FormXObject<\/code><\/td>\n5<\/td>\nForm XObject \u5bf9\u8c61<\/td>\n\u4e0d\u652f\u6301<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6709\u4e00\u4e2a\u5bb9\u6613\u8e29\u7684\u70b9\uff1agetPageCount()<\/code> \u662f\u540c\u6b65<\/strong>\u8fd4\u56de\u503c\uff0c\u4e0d\u9700\u8981\u4e5f\u4e0d\u5e94\u8be5 await<\/code>\uff1bgetPageByIndex()<\/code> \u624d\u662f Promise\u3002\u6df7\u7528\u5bb9\u6613\u5f97\u5230 undefined<\/code>\u3002<\/p>\n

\u4e8c\u3001\u7edf\u8ba1\u6bcf\u9875\u5bf9\u8c61\u603b\u6570<\/h2>\n

\u53ea\u9700\u8981\u6570\u91cf\u65f6\uff0c\u4e00\u6b21 getGraphicsObjectsCount()<\/code> \u5c31\u80fd\u62ff\u5230\u672c\u9875\u7ed3\u679c\uff0c\u4e0d\u8981\u901a\u8fc7\u5faa\u73af getGraphicsObjectByIndex()<\/code> \u6765\u8ba1\u6570\u2014\u2014\u540e\u8005\u7684\u8c03\u7528\u6b21\u6570\u7b49\u4e8e\u8be5\u9875\u5bf9\u8c61\u6570\uff0c\u5728\u56fe\u7eb8\u7c7b\u6587\u6863\u4e0a\u4f1a\u6162\u51e0\u4e2a\u6570\u91cf\u7ea7\u3002<\/p>\n

\u6700\u7b80\u5f62\u5f0f\u5982\u4e0b\uff0c\u53ef\u76f4\u63a5\u5728\u5df2\u521d\u59cb\u5316 pdfui \u7684\u9875\u9762\u63a7\u5236\u53f0\u6267\u884c\uff1a<\/p>\n

const viewer = await pdfui.getPDFViewer();\nconst doc = viewer.getCurrentPDFDoc();      \/\/ PDFViewer \u4e0a\u540c\u6b65\u8fd4\u56de PDFDoc | null\nif (!doc) throw new Error('\u672a\u6253\u5f00\u6587\u6863');\n\nconst counts = [];\nfor (let i = 0; i < doc.getPageCount(); i++) {\n    const page = await doc.getPageByIndex(i);\n    counts.push(await page.getGraphicsObjectsCount());\n}\nconsole.log(counts);   \/\/ \u4f8b\u5982 [12, 5, 0, 31, ...]<\/code><\/pre>\n
\u8981\u540c\u65f6\u62ff\u5230\u9875\u7801\u548c\u6570\u91cf\u3001\u4fbf\u4e8e\u8f93\u51fa\u62a5\u8868\u65f6\uff0c\u7528\u4e0b\u9762\u8fd9\u6bb5\uff1a<\/p>\n
async function countPerPage(pdfui) {\n    const viewer = await pdfui.getPDFViewer();\n    const doc = viewer.getCurrentPDFDoc();\n    if (!doc) throw new Error('\u672a\u6253\u5f00\u6587\u6863');\n\n    const list = [];\n    for (let i = 0; i < doc.getPageCount(); i++) {\n        const page = await doc.getPageByIndex(i);\n        list.push({ pageNo: i + 1, count: await page.getGraphicsObjectsCount() });\n    }\n    console.table(list);\n    return list;\n}\n\nconst rows = await countPerPage(pdfui);<\/code><\/pre>\n
list<\/code> \u7684\u7ed3\u6784\u662f [{ pageNo, count }, ...]<\/code>\uff0c\u9875\u7801\u4ece 1 \u5f00\u59cb\u3002\u8fd9\u4e2a\u5faa\u73af\u7684\u8c03\u7528\u6b21\u6570\u662f\u9875\u6570\u7684\u4e24\u500d\uff0c200 \u9875\u6587\u6863\u901a\u5e38\u5728\u6570\u767e\u6beb\u79d2\u5185\u5b8c\u6210\u3002<\/p>\n
\u5173\u4e8e pdfui<\/code> \u4e0e pdfViewer<\/code> \u7684\u53d6\u503c\u5dee\u5f02\u9700\u8981\u6ce8\u610f\uff1aPDFUI<\/code> \u7c7b\u53ea\u7ee7\u627f\u4e86 PDFViewer<\/code> \u7684\u65b9\u6cd5\u58f0\u660e\uff0c\u5b9e\u9645\u628a\u8c03\u7528\u59d4\u6258\u7ed9 PDFViewer<\/code> \u5b9e\u4f8b\uff0c\u6240\u4ee5\u5728 pdfui<\/code> \u4e0a\u8c03\u7528 getCurrentPDFDoc()<\/code> \u8fd4\u56de\u7684\u662f Promise\uff0c\u5728 pdfViewer<\/code> \u5b9e\u4f8b\u4e0a\u8c03\u7528\u5219\u662f\u540c\u6b65\u8fd4\u56de PDFDoc<\/code>\u3002\u4e3a\u4e86\u884c\u4e3a\u4e00\u81f4\uff0c\u5efa\u8bae\u7edf\u4e00\u8d70 await pdfui.getPDFViewer()<\/code> \u62ff\u5230\u5b9e\u4f8b\u540e\u518d\u8c03\u7528\u3002\u7edf\u8ba1\u672c\u8eab\u4e0d\u4f9d\u8d56\u9875\u9762\u6e32\u67d3\uff0c\u6587\u6863\u52a0\u8f7d\u5b8c\u6210\u5373\u53ef\u6267\u884c\uff0c\u670d\u52a1\u7aef\u73af\u5883\u540c\u6837\u652f\u6301\u3002<\/p>\n
\u4e09\u3001\u6309\u7c7b\u578b\u7ec6\u5206\uff1a\u4e24\u6761\u8def\u7ebf<\/h2>\n
\u9700\u8981\u533a\u5206\u6587\u672c\u3001\u8def\u5f84\u3001\u56fe\u50cf\u5404\u6709\u591a\u5c11\u65f6\uff0c\u6709\u4e24\u6761\u8def\u7ebf\u3002\u5b83\u4eec\u7684\u5dee\u5f02\u4e0d\u5728\u4ee3\u7801\u98ce\u683c\uff0c\u800c\u5728\u590d\u6742\u5ea6\u91cf\u7ea7\u2014\u2014\u4e00\u6761\u968f\u5bf9\u8c61\u6570\u7ebf\u6027\u589e\u957f\uff0c\u4e00\u6761\u662f\u5e38\u6570\u3002<\/p>\n
\u8def\u7ebf A\uff1a\u77e9\u5f62\u67e5\u8be2\uff08\u63a8\u8350\uff09<\/h3>\n
\u601d\u8def\u662f\u628a”\u7edf\u8ba1\u67d0\u7c7b\u578b\u6709\u51e0\u4e2a”\u53d8\u6210”\u67e5\u8be2\u8be5\u7c7b\u578b\u5728\u6574\u9875\u6709\u54ea\u4e9b”\uff0c\u7528\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\u4f5c\u4e3a\u6570\u91cf\u3002\u6574\u9875\u77e9\u5f62\u4ece getAllBoxes()<\/code> \u53d6 cropBox<\/code>\uff08\u7f3a\u5931\u65f6\u9000\u56de mediaBox<\/code>\uff09\uff0c\u7136\u540e\u628a isInRect<\/code> \u8bbe\u4e3a false<\/code>\uff0c\u8ba9\u67e5\u8be2\u8986\u76d6\u4e0e\u6574\u9875\u76f8\u4ea4\u7684\u6240\u6709\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u4ec5\u5b8c\u5168\u4f4d\u4e8e\u9875\u5185\u7684\u5bf9\u8c61\u3002<\/p>\n
async function typeBreakdownFast(page) {\n    const c = PDFViewCtrl.PDF.constant.Graphics_ObjectType;\n\n    \/\/ \u53d6\u6574\u9875\u77e9\u5f62\uff1bPDFRect \u7ed3\u6784\u4e3a { left, bottom, right, top }\uff0c\u5355\u4f4d pt\uff0c\u539f\u70b9\u5728\u5de6\u4e0b\u89d2\n    const boxes = await page.getAllBoxes();\n    const rect = boxes.cropBox || boxes.mediaBox;\n\n    const result = {};\n    const types = ['Text', 'Path', 'Image', 'Shading'];\n    for (const name of types) {\n        const objs = await page.getGraphicsObjectsByRect({\n            rect: rect,\n            tolerance: 0,\n            type: c[name],\n            isInRect: false\n        });\n        result[name] = objs ? objs.length : 0;\n    }\n\n    \/\/ \u8be5\u63a5\u53e3\u4e0d\u652f\u6301 FormXObject\uff0c\u7528\u603b\u6570\u51cf\u5176\u4f59\u56db\u7c7b\u63a8\u7b97\n    const total = await page.getGraphicsObjectsCount();\n    const known = types.reduce((s, k) => s + result[k], 0);\n    result.FormXObject = total - known;\n\n    return result;\n}<\/code><\/pre>\n
\u6bcf\u9875\u56fa\u5b9a 5 \u6b21\u8c03\u7528\uff084 \u6b21\u7c7b\u578b\u67e5\u8be2 + 1 \u6b21\u603b\u6570\uff09\uff0c\u4e0e\u9875\u9762\u5bf9\u8c61\u6570\u65e0\u5173\u3002\u5355\u9875 3000 \u4e2a\u5bf9\u8c61\u7684\u56fe\u7eb8\uff0c\u8fd9\u6761\u8def\u7ebf\u901a\u5e38\u5728\u51e0\u5341\u6beb\u79d2\u5185\u8fd4\u56de\u3002<\/p>\n
getGraphicsObjectsByRect<\/code> \u7684 options<\/code> \u5b57\u6bb5\uff1a<\/p>\n\n\n\n\n\n\n\n\n
\u5b57\u6bb5<\/th>\n\u7c7b\u578b<\/th>\n\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n
rect<\/code><\/td>\nPDFRect<\/code><\/td>\n\u67e5\u8be2\u77e9\u5f62\uff0cPDF \u5750\u6807\uff08{left, bottom, right, top}<\/code>\uff09<\/td>\n<\/tr>\n
tolerance<\/code><\/td>\nnumber<\/code><\/td>\n\u77e9\u5f62\u5bb9\u5dee\uff0c\u7528\u6574\u9875\u77e9\u5f62\u65f6\u4f20 0 \u5373\u53ef<\/td>\n<\/tr>\n
type<\/code><\/td>\nGraphics_ObjectType<\/code><\/td>\n\u76ee\u6807\u7c7b\u578b\uff0c\u4e0d\u652f\u6301 FormXObject<\/code><\/strong><\/td>\n<\/tr>\n
isInRect<\/code><\/td>\nboolean<\/code><\/td>\ntrue<\/code> \u53ea\u8fd4\u56de\u5b8c\u5168\u5728\u77e9\u5f62\u5185\u7684\u5bf9\u8c61\uff1bfalse<\/code> \u8fd4\u56de\u4e0e\u77e9\u5f62\u76f8\u4ea4\u7684\u5bf9\u8c61\u3002\u9ed8\u8ba4 true<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
isInRect<\/code> \u7684\u9ed8\u8ba4\u503c\u662f true<\/code>\uff0c\u7528\u6574\u9875\u77e9\u5f62\u67e5\u8be2\u65f6\u5982\u679c\u4fdd\u6301\u9ed8\u8ba4\uff0c\u8de8\u8d8a\u9875\u9762\u8fb9\u754c\uff08\u4f8b\u5982\u56e0\u88c1\u5207\u6846\u4e0e\u5a92\u4f53\u6846\u4e0d\u4e00\u81f4\uff09\u7684\u5bf9\u8c61\u4f1a\u88ab\u6f0f\u6389\uff0c\u5bfc\u81f4\u6570\u91cf\u504f\u5c0f\u3002\u8fd9\u662f\u8def\u7ebf A \u6700\u5e38\u89c1\u7684\u9519\u8bef\u6765\u6e90\u3002<\/p>\n
\u8def\u7ebf B\uff1a\u9010\u5bf9\u8c61\u904d\u5386\uff08\u7cbe\u786e\uff0c\u4f46\u6162\uff09<\/h3>\n
\u9010\u4e2a\u53d6\u51fa\u5bf9\u8c61\u3001\u8bfb getType()<\/code> \u518d\u7d2f\u52a0\u3002\u8fd9\u6761\u8def\u7ebf\u7684\u7ed3\u679c\u6700\u7cbe\u786e\uff0cFormXObject<\/code> \u4e5f\u80fd\u76f4\u63a5\u5f97\u5230\u771f\u5b9e\u503c\u800c\u975e\u63a8\u7b97\u3002<\/p>\n
async function typeBreakdownSlow(page, total) {\n    const c = PDFViewCtrl.PDF.constant.Graphics_ObjectType;\n    const nameOf = {};\n    for (const k in c) {\n        if (typeof c[k] === 'number') nameOf[c[k]] = k;\n    }\n\n    const result = { Text: 0, Path: 0, Image: 0, Shading: 0, FormXObject: 0 };\n    for (let i = 0; i < total; i++) {\n        const obj = await page.getGraphicsObjectByIndex(i);\n        if (!obj) continue;\n        const name = nameOf[obj.getType()] || ('Unknown(' + obj.getType() + ')');\n        result[name] = (result[name] || 0) + 1;\n    }\n    return result;\n}<\/code><\/pre>\n
\u5355\u4e2a\u5bf9\u8c61\u7684\u53d6\u503c\u662f\u4e00\u6b21\u8de8\u7ebf\u7a0b\u7684\u5f02\u6b65\u8c03\u7528\uff0ctotal<\/code> \u4e3a\u591a\u5c11\u5c31\u8981\u7b49\u591a\u5c11\u6b21\u3002\u5355\u9875 3000 \u4e2a\u5bf9\u8c61\u65f6\uff0c\u8fd9\u6761\u8def\u7ebf\u7684\u8017\u65f6\u901a\u5e38\u5728\u5206\u949f\u7ea7\u3002\u5b83\u9002\u5408\u9875\u6570\u4e0d\u591a\u3001\u6216\u53ea\u5bf9\u5c11\u6570\u51e0\u9875\u8981\u6c42\u7cbe\u786e\u503c\u7684\u573a\u666f\u3002<\/p>\n
\u4e24\u6761\u8def\u7ebf\u7684\u53d6\u820d<\/h3>\n\n\n\n\n\n\n\n\n\n\n
\u5bf9\u6bd4\u9879<\/th>\n\u8def\u7ebf A\uff08\u77e9\u5f62\u67e5\u8be2\uff09<\/th>\n\u8def\u7ebf B\uff08\u9010\u5bf9\u8c61\uff09<\/th>\n<\/tr>\n<\/thead>\n
\u6bcf\u9875\u8c03\u7528\u6b21\u6570<\/td>\n\u56fa\u5b9a 5 \u6b21<\/td>\n\u7b49\u4e8e\u8be5\u9875\u5bf9\u8c61\u6570<\/td>\n<\/tr>\n
\u5355\u9875 3000 \u5bf9\u8c61\u7684\u91cf\u7ea7<\/td>\n\u6570\u5341\u6beb\u79d2<\/td>\n\u5206\u949f\u7ea7<\/td>\n<\/tr>\n
Shading<\/td>\n\u652f\u6301<\/td>\n\u652f\u6301<\/td>\n<\/tr>\n
FormXObject<\/td>\n\u4e0d\u652f\u6301\uff0c\u53ea\u80fd\u6309\u5dee\u503c\u63a8\u7b97<\/td>\n\u652f\u6301\uff0c\u7ed3\u679c\u4e3a\u771f\u5b9e\u503c<\/td>\n<\/tr>\n
\u7ed3\u679c\u7cbe\u5ea6<\/td>\n\u56db\u7c7b\u7cbe\u786e\uff0cFormXObject \u4e3a\u63a8\u7b97\u503c<\/td>\n\u5168\u90e8\u7cbe\u786e<\/td>\n<\/tr>\n
\u9002\u7528\u573a\u666f<\/td>\n\u5927\u6587\u6863\u5168\u91cf\u7edf\u8ba1\u3001\u62a5\u8868\u3001\u62bd\u6837<\/td>\n\u5c11\u91cf\u9875\u9762\u3001\u9700\u7cbe\u786e FormXObject<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u4e00\u4e2a\u5b9e\u7528\u505a\u6cd5\u662f\u5148\u7528\u8def\u7ebf A \u8dd1\u5168\u6587\u6863\uff0c\u540c\u65f6\u6311\u5bf9\u8c61\u6700\u5c11\u7684\u4e00\u9875\u7528\u8def\u7ebf B \u4ea4\u53c9\u6821\u9a8c\uff0c\u786e\u8ba4\u4e24\u8005\u7684\u56db\u7c7b\u7ed3\u679c\u4e00\u81f4\u540e\u518d\u91c7\u4fe1\u8def\u7ebf A \u7684\u5168\u91cf\u6570\u636e\u3002\u5982\u679c\u67d0\u9875\u7684 FormXObject \u63a8\u7b97\u503c\u4e3a\u8d1f\uff0c\u8bf4\u660e\u8def\u7ebf A \u7684\u5176\u4f59\u56db\u7c7b\u67e5\u8be2\u6709\u9057\u6f0f\uff0c\u901a\u5e38\u662f isInRect<\/code> \u7528\u4e86\u9ed8\u8ba4\u503c\u6216 rect<\/code> \u53d6\u9519\u4e86\u6846\u3002<\/p>\n
\u56db\u3001\u6027\u80fd\u4e0e\u6b63\u786e\u6027\u6ce8\u610f\u4e8b\u9879<\/h2>\n
\u4e32\u884c\u904d\u5386\uff0c\u4e0d\u8981\u4e00\u6b21\u6027\u5e76\u53d1\u3002<\/strong> \u6309\u9875\u4e32\u884c\u8bbf\u95ee\u7b26\u5408 SDK \u6587\u6863\u6a21\u578b\u7684\u4f7f\u7528\u65b9\u5f0f\u3002\u628a\u51e0\u5341\u9875\u7684 getPageByIndex<\/code> \u5168\u90e8\u585e\u8fdb Promise.all<\/code> \u5e76\u4e0d\u4f1a\u66f4\u5feb\uff0c\u5185\u90e8\u4ecd\u8981\u6392\u961f\uff0c\u53cd\u800c\u66f4\u5bb9\u6613\u89e6\u53d1\u8d44\u6e90\u7ade\u4e89\u3002\u9700\u8981\u5e76\u53d1\u65f6\u5efa\u8bae\u63a7\u5236\u5728 3 \u5230 5 \u9875\u4ee5\u5185\uff0c\u5e76\u5b9e\u6d4b\u786e\u8ba4\u3002<\/p>\n
\u7edf\u8ba1\u4e0d\u9700\u8981\u5148\u6e32\u67d3\u9875\u9762\u3002<\/strong> getPageByIndex<\/code> \u914d\u5408 getGraphicsObjectsCount<\/code> \u8d70\u7684\u662f\u6587\u6863\u6a21\u578b\uff0c\u4e0e\u89c6\u56fe\u65e0\u5173\u3002\u4e0d\u5fc5\u7b49\u9875\u9762\u6e32\u67d3\u5b8c\u6210\uff0c\u4e5f\u4e0d\u5fc5\u8df3\u8f6c\u5230\u76ee\u6807\u9875\u3002<\/p>\n
\u7edf\u8ba1\u8303\u56f4\u8981\u5206\u6e05\u3002<\/strong> \u8fd9\u91cc\u7edf\u8ba1\u7684\u662f PDF \u5185\u5bb9\u6d41\u4e2d\u7684\u56fe\u5f62\u5bf9\u8c61\uff0c\u5305\u542b\u4e0a\u8ff0\u4e94\u7c7b\u3002\u5b83\u4e0d\u7b49\u4e8e PDF \u7f16\u8f91\u5668\u7684”\u5185\u5bb9”\u9762\u677f\u6240\u5c55\u793a\u7684\u6761\u76ee\u6570\u2014\u2014\u540e\u8005\u6309\u5185\u5bb9\u6d41\u64cd\u4f5c\u7b26\u5c42\u7ea7\u7ec4\u7ec7\uff0c\u4e24\u8005\u8ba1\u7b97\u8303\u56f4\u4e0d\u540c\uff0c\u4e0d\u80fd\u76f4\u63a5\u5bf9\u6bd4\u3002\u8868\u5355\u57df\uff08Widget\uff09\u5c5e\u4e8e\u6ce8\u91ca\u4f53\u7cfb\uff0c\u4e0d\u5305\u542b\u5728\u56fe\u5f62\u5bf9\u8c61\u91cc\uff0c\u9700\u8981\u53e6\u5916\u7528 getAnnotCountAsync()<\/code> \u7edf\u8ba1\uff1b\u4ece 11.1.0 \u8d77\u6ce8\u91ca\u91c7\u7528\u61d2\u52a0\u8f7d\uff0c\u53d6\u603b\u6570\u8bf7\u7528\u5f02\u6b65\u7248\u672c\u800c\u975e getAnnotCount()<\/code>\u3002<\/p>\n
\u957f\u4efb\u52a1\u8981\u63d0\u4f9b\u8fdb\u5ea6\u53cd\u9988\u3002<\/strong> \u7528\u8def\u7ebf B \u5904\u7406\u591a\u9875\u6587\u6863\u65f6\uff0c\u52a1\u5fc5\u628a\u8fdb\u5ea6\u5237\u65b0\u653e\u5728\u6700\u5185\u5c42\u5faa\u73af\u5185\u90e8<\/strong>\uff0c\u5e76\u914d\u4e00\u4e2a\u72ec\u7acb\u4e8e\u4e1a\u52a1\u903b\u8f91\u7684\u5b9a\u65f6\u5668\u66f4\u65b0\u5df2\u7528\u65f6\u95f4\u3002\u53ea\u5728”\u6574\u9875\u5904\u7406\u5b8c”\u540e\u5237\u65b0\u662f\u4e0d\u591f\u7684\uff1a\u67d0\u4e00\u9875\u5bf9\u8c61\u7279\u522b\u591a\u65f6\uff0c\u5185\u5c42\u957f\u65f6\u95f4\u4e0d\u8fd4\u56de\uff0c\u754c\u9762\u4f1a\u505c\u5728\u4e0a\u4e00\u53e5\u63d0\u793a\u4e0a\uff0c\u770b\u8d77\u6765\u4e0e\u5361\u6b7b\u65e0\u5f02\u3002\u540c\u65f6\u5efa\u8bae\u5728\u63a7\u5236\u53f0\u6253\u5370\u6bcf\u9875\u8017\u65f6\uff0c\u4fbf\u4e8e\u5b9a\u4f4d\u662f\u54ea\u4e00\u9875\u62d6\u6162\u4e86\u6574\u4f53\u3002<\/p>\n
getBitmap<\/code> \u4e0d\u8981\u5728\u7edf\u8ba1\u5faa\u73af\u91cc\u8c03\u7528\u3002<\/strong> \u5b83\u771f\u6b63\u89e6\u53d1\u6e32\u67d3\uff0c\u5f00\u9500\u8fdc\u9ad8\u4e8e\u53d6\u7c7b\u578b\u3002<\/p>\n
\u4e94\u3001\u5e38\u89c1\u95ee\u9898<\/h2>\n
1. \u7edf\u8ba1\u7ed3\u679c\u548c PDF \u7f16\u8f91\u5668”\u5185\u5bb9”\u9762\u677f\u7684\u6761\u76ee\u6570\u4e0d\u4e00\u81f4<\/h3>\n
\u4e24\u8005\u8ba1\u7b97\u8303\u56f4\u4e0d\u540c\u3002\u672c\u6587\u7edf\u8ba1\u7684\u662f\u5185\u5bb9\u6d41\u4e2d\u7684\u56fe\u5f62\u5bf9\u8c61\uff0c\u6309 Text\u3001Path\u3001Image\u3001Shading\u3001FormXObject \u4e94\u7c7b\u5212\u5206\uff1b\u7f16\u8f91\u5668\u7684\u5185\u5bb9\u9762\u677f\u5c55\u793a\u7684\u662f\u5185\u5bb9\u6d41\u64cd\u4f5c\u7b26\u5c42\u7ea7\u3002Form XObject \u5185\u90e8\u7684\u5bf9\u8c61\u662f\u5426\u5c55\u5f00\u4e3a\u72ec\u7acb\u5bf9\u8c61\uff0c\u4e5f\u53d6\u51b3\u4e8e\u8be5 Form \u662f\u5426\u88ab\u4f5c\u4e3a\u72ec\u7acb\u5bf9\u8c61\u8fd4\u56de\u3002\u505a\u6570\u91cf\u6bd4\u5bf9\u65f6\u8bf7\u7528\u540c\u4e00\u5957\u63a5\u53e3\uff0c\u4e0d\u8981\u8de8\u5de5\u5177\u6bd4\u8f83\u3002<\/p>\n
2. \u6309\u77e9\u5f62\u67e5\u8be2\u5f97\u5230\u7684\u6570\u91cf\u5c0f\u4e8e\u5168\u9875\u603b\u6570<\/h3>\n
\u5148\u68c0\u67e5 isInRect<\/code> \u662f\u5426\u7528\u4e86\u9ed8\u8ba4\u503c\u3002\u9ed8\u8ba4 true<\/code> \u53ea\u8fd4\u56de\u5b8c\u5168\u4f4d\u4e8e\u77e9\u5f62\u5185\u7684\u5bf9\u8c61\uff0c\u8de8\u8d8a\u8fb9\u754c\u7684\u5bf9\u8c61\u4f1a\u88ab\u6392\u9664\u3002\u6574\u9875\u7edf\u8ba1\u5e94\u663e\u5f0f\u4f20 isInRect: false<\/code>\u3002\u5176\u6b21\u786e\u8ba4 rect<\/code> \u53d6\u81ea cropBox<\/code> \u800c\u975e\u5176\u4ed6\u6846\u2014\u2014getAllBoxes()<\/code> \u8fd4\u56de mediaBox<\/code>\u3001cropBox<\/code>\u3001trimBox<\/code>\u3001artBox<\/code>\u3001bleedBox<\/code>\u3001calcBox<\/code> \u516d\u4e2a\u77e9\u5f62\u53ca\u6700\u5c0f\u5bbd\u9ad8\uff0c\u9875\u9762\u53ef\u89c1\u533a\u57df\u5bf9\u5e94\u7684\u662f cropBox<\/code>\u3002<\/p>\n
3. FormXObject \u7684\u63a8\u7b97\u503c\u662f\u8d1f\u6570<\/h3>\n
\u8bf4\u660e\u5176\u4f59\u56db\u7c7b\u7684\u67e5\u8be2\u7ed3\u679c\u4e4b\u548c\u8d85\u8fc7\u4e86\u603b\u6570\uff0c\u5373\u56db\u7c7b\u4e2d\u6709\u9057\u6f0f\u6216\u91cd\u590d\u3002\u5e38\u89c1\u539f\u56e0\u662f isInRect<\/code> \u7528\u4e86\u9ed8\u8ba4\u503c\uff0c\u6216 rect<\/code> \u4f20\u5165\u4e86\u9519\u8bef\u7684\u6846\uff08\u4f8b\u5982\u8bef\u7528 trimBox<\/code> \u800c\u6587\u6863\u5b9e\u9645\u4ee5 cropBox<\/code> \u663e\u793a\uff09\u3002\u4fee\u6b63 rect<\/code> \u4e0e isInRect<\/code> \u540e\u91cd\u7b97\uff1b\u5982\u4ecd\u6709\u5f02\u5e38\uff0c\u5bf9\u8be5\u9875\u6539\u7528\u8def\u7ebf B \u53d6\u771f\u5b9e\u503c\u3002<\/p>\n
4. \u9010\u5bf9\u8c61\u7edf\u8ba1\u5728\u957f\u6587\u6863\u4e0a\u8fd0\u884c\u5f88\u4e45\uff0c\u63a7\u5236\u53f0\u4e5f\u6ca1\u6709\u8f93\u51fa<\/h3>\n
\u8fd9\u901a\u5e38\u662f\u8def\u7ebf\u9009\u62e9\u95ee\u9898\uff0c\u800c\u975e\u4ee3\u7801\u7f3a\u9677\u3002\u9010\u5bf9\u8c61\u7edf\u8ba1\u7684\u8c03\u7528\u6b21\u6570\u7b49\u4e8e\u603b\u5bf9\u8c61\u6570\uff0c\u56fe\u7eb8\u7c7b\u6587\u6863\u5355\u9875\u53ef\u8fbe\u6570\u5343\u4e2a\u5bf9\u8c61\u3002\u5224\u65ad\u67d0\u4e00\u9875\u7684\u9884\u671f\u8017\u65f6\uff0c\u53ef\u4ee5\u53ea\u53d6\u8be5\u9875\u524d 50 \u4e2a\u5bf9\u8c61\u8ba1\u65f6\u540e\u6309\u6bd4\u4f8b\u63a8\u7b97\uff1a<\/p>\n
async function probeSlowPage(page, total, sample) {\n    const n = Math.min(sample, total);\n    const t0 = performance.now();\n    for (let i = 0; i < n; i++) {\n        await page.getGraphicsObjectByIndex(i);\n    }\n    const dt = performance.now() - t0;\n    return { objects: total, sample: n, sampleMs: dt, estimateSec: (dt \/ n * total) \/ 1000 };\n}<\/code><\/pre>\n
\u63a8\u7b97\u7ed3\u679c\u663e\u793a\u8be5\u9875\u9700\u8981\u6570\u5341\u79d2\u4ee5\u4e0a\u65f6\uff0c\u6539\u7528\u8def\u7ebf A\u3002<\/p>\n
5. \u5728\u63a7\u5236\u53f0\u6267\u884c\u7edf\u8ba1\u811a\u672c\u540e\u6ca1\u6709\u4efb\u4f55\u53cd\u5e94<\/h3>\n
\u6309\u4ee5\u4e0b\u987a\u5e8f\u6392\u67e5\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
\u73b0\u8c61<\/th>\n\u539f\u56e0<\/th>\n\u5904\u7406<\/th>\n<\/tr>\n<\/thead>\n
\u53ea\u56de\u663e\u51fd\u6570\u5b9a\u4e49\u6216 undefined<\/code>\uff0c\u65e0\u8868\u683c\u8f93\u51fa<\/td>\n\u811a\u672c\u53ea\u5b9a\u4e49\u4e86\u51fd\u6570\uff0c\u5c1a\u672a\u8c03\u7528<\/td>\n\u663e\u5f0f\u8c03\u7528\u8be5\u51fd\u6570\u5e76 await<\/code><\/td>\n<\/tr>\n
\u65e0\u8f93\u51fa\u4e14\u9875\u9762\u65e0\u53d8\u5316<\/td>\n\u4f7f\u7528\u4e86\u9010\u5bf9\u8c61\u7edf\u8ba1\uff0c\u957f\u6587\u6863\u8017\u65f6\u8fc7\u957f<\/td>\n\u5148\u53ea\u7edf\u8ba1\u603b\u6570\uff0c\u6216\u6539\u7528\u8def\u7ebf A<\/td>\n<\/tr>\n
\u62a5 xxx is not a function<\/code> \u6216\u8bfb\u5230 null<\/code><\/td>\n\u5728 pdfui<\/code> \u4e0a\u76f4\u63a5\u8c03\u4e86 getCurrentPDFDoc()<\/code>\uff0c\u62ff\u5230\u7684\u662f Promise<\/td>\n\u5148 await pdfui.getPDFViewer()<\/code> \u518d\u53d6\u6587\u6863<\/td>\n<\/tr>\n
\u62a5 Identifier 'xxx' has already been declared<\/code><\/td>\n\u540c\u4e00\u6bb5\u542b const<\/code>\/let<\/code> \u7684\u4ee3\u7801\u7c98\u8d34\u4e86\u7b2c\u4e8c\u6b21<\/td>\n\u5237\u65b0\u9875\u9762\uff0c\u6216\u7528\u7acb\u5373\u6267\u884c\u51fd\u6570\u5305\u88f9<\/td>\n<\/tr>\n
\u65e0\u8868\u683c\u4f46\u65e0\u62a5\u9519<\/td>\n\u63a7\u5236\u53f0\u8fc7\u6ee4\u7ea7\u522b\u8bbe\u4e3a Errors \u6216 Warnings\uff0cconsole.table<\/code> \u5c5e Info \u7ea7<\/td>\n\u5207\u56de\u5168\u90e8\u7ea7\u522b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
6. \u53ea\u60f3\u7edf\u8ba1\u67d0\u4e2a\u533a\u57df\u5185\u7684\u5bf9\u8c61\u6570\u91cf<\/h3>\n
\u7528 getGraphicsObjectsByRect<\/code> \u6307\u5b9a rect<\/code> \u4e3a\u8be5\u533a\u57df\uff0c\u53d6\u8fd4\u56de\u6570\u7ec4\u957f\u5ea6\u3002\u82e5\u4f7f\u7528 7.4.0 \u81f3 8.4.0 \u4e4b\u95f4\u63d0\u4f9b\u7684 getGraphicsObjectsInRect(rect, tolerance, type)<\/code>\uff0c\u6ce8\u610f\u8be5\u63a5\u53e3\u540c\u65f6\u4e0d\u652f\u6301 Shading<\/code> \u4e0e FormXObject<\/code>\uff0c\u8986\u76d6\u9762\u6bd4 getGraphicsObjectsByRect<\/code> \u66f4\u7a84\u3002<\/p>\n
\u516d\u3001\u53c2\u8003<\/h2>\n
    \n
  • \u63a5\u53e3\u7b7e\u540d\u4e0e\u8fd4\u56de\u503c\uff1aFoxit PDF SDK for Web API Reference \u4e2d\u7684 PDFPage<\/code>\u3001GraphicsObject<\/code>\u3001Constants<\/code> \u7c7b\u76ee\uff0c\u89c1 https:\/\/devdocs.fuxinsoft.cn\/resources\/pdf-sdk-web\/api_reference\/html\/index.html<\/li>\n
  • \u77e9\u5f62\u7ed3\u6784 PDFRect<\/code> \u7684\u5b57\u6bb5\u5b9a\u4e49\u4e0e\u5750\u6807\u7cfb\u7ea6\u5b9a\uff0c\u89c1\u4e0a\u8ff0 API Reference \u4e2d PDFRect<\/code> \u7684\u8bf4\u660e<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    \u9002\u7528\u4ea7\u54c1\uff1a\u798f\u6615 PDF SDK for Web\uff08UIExtension \/ PDFViewCtrl\uff09\uff5c \u63a5\u53e3\u8d77 […]<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67],"tags":[902,612,457,1075],"class_list":["post-9614","post","type-post","status-publish","format-standard","hentry","category-websdk","tag-graphicsobject","tag-pdfpage","tag-457","tag-1075"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","_links":{"self":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts\/9614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9614"}],"version-history":[{"count":1,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts\/9614\/revisions"}],"predecessor-version":[{"id":9615,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts\/9614\/revisions\/9615"}],"wp:attachment":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}