File size: 19,619 Bytes
18e4106
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507

<!DOCTYPE html>


<html lang="zh-CN" data-content_root="../" >

  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />

    <title>快速开始 &#8212; PDF-Extract-Kit 0.1.0 文档</title>
  
  
  
  <script data-cfasync="false">
    document.documentElement.dataset.mode = localStorage.getItem("mode") || "";
    document.documentElement.dataset.theme = localStorage.getItem("theme") || "";
  </script>
  
  <!-- Loaded before other Sphinx assets -->
  <link href="../_static/styles/theme.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
<link href="../_static/styles/bootstrap.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
<link href="../_static/styles/pydata-sphinx-theme.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />

  
  <link href="../_static/vendor/fontawesome/6.5.2/css/all.min.css?digest=dfe6caa3a7d634c4db9b" rel="stylesheet" />
  <link rel="preload" as="font" type="font/woff2" crossorigin href="../_static/vendor/fontawesome/6.5.2/webfonts/fa-solid-900.woff2" />
<link rel="preload" as="font" type="font/woff2" crossorigin href="../_static/vendor/fontawesome/6.5.2/webfonts/fa-brands-400.woff2" />
<link rel="preload" as="font" type="font/woff2" crossorigin href="../_static/vendor/fontawesome/6.5.2/webfonts/fa-regular-400.woff2" />

    <link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=a746c00c" />
    <link rel="stylesheet" type="text/css" href="../_static/styles/sphinx-book-theme.css?v=a3416100" />
    <link rel="stylesheet" type="text/css" href="../_static/copybutton.css?v=76b2166b" />
  
  <!-- Pre-loaded scripts that we'll load fully later -->
  <link rel="preload" as="script" href="../_static/scripts/bootstrap.js?digest=dfe6caa3a7d634c4db9b" />
<link rel="preload" as="script" href="../_static/scripts/pydata-sphinx-theme.js?digest=dfe6caa3a7d634c4db9b" />
  <script src="../_static/vendor/fontawesome/6.5.2/js/all.min.js?digest=dfe6caa3a7d634c4db9b"></script>

    <script src="../_static/documentation_options.js?v=2693749b"></script>
    <script src="../_static/doctools.js?v=9a2dae69"></script>
    <script src="../_static/sphinx_highlight.js?v=dc90522c"></script>
    <script src="../_static/clipboard.min.js?v=a7894cd8"></script>
    <script src="../_static/copybutton.js?v=a5fa425f"></script>
    <script src="../_static/scripts/sphinx-book-theme.js?v=887ef09a"></script>
    <script src="../_static/translations.js?v=beaddf03"></script>
    <script>DOCUMENTATION_OPTIONS.pagename = 'get_started/quickstart';</script>
    <link rel="index" title="索引" href="../genindex.html" />
    <link rel="search" title="搜索" href="../search.html" />
    <link rel="next" title="布局检测算法" href="../algorithm/layout_detection.html" />
    <link rel="prev" title="模型权重下载" href="pretrained_model.html" />
  <meta name="viewport" content="width=device-width, initial-scale=1"/>
  <meta name="docsearch:language" content="zh-CN"/>
  </head>
  
  
  <body data-bs-spy="scroll" data-bs-target=".bd-toc-nav" data-offset="180" data-bs-root-margin="0px 0px -60%" data-default-mode="">

  
  
  <div id="pst-skip-link" class="skip-link d-print-none"><a href="#main-content">Skip to main content</a></div>
  
  <div id="pst-scroll-pixel-helper"></div>
  
  <button type="button" class="btn rounded-pill" id="pst-back-to-top">
    <i class="fa-solid fa-arrow-up"></i>Back to top</button>

  
  <input type="checkbox"
          class="sidebar-toggle"
          id="pst-primary-sidebar-checkbox"/>
  <label class="overlay overlay-primary" for="pst-primary-sidebar-checkbox"></label>
  
  <input type="checkbox"
          class="sidebar-toggle"
          id="pst-secondary-sidebar-checkbox"/>
  <label class="overlay overlay-secondary" for="pst-secondary-sidebar-checkbox"></label>
  
  <div class="search-button__wrapper">
    <div class="search-button__overlay"></div>
    <div class="search-button__search-container">
<form class="bd-search d-flex align-items-center"
      action="../search.html"
      method="get">
  <i class="fa-solid fa-magnifying-glass"></i>
  <input type="search"
         class="form-control"
         name="q"
         id="search-input"
         placeholder="Search..."
         aria-label="Search..."
         autocomplete="off"
         autocorrect="off"
         autocapitalize="off"
         spellcheck="false"/>
  <span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd>K</kbd></span>
</form></div>
  </div>

  <div class="pst-async-banner-revealer d-none">
  <aside id="bd-header-version-warning" class="d-none d-print-none" aria-label="Version warning"></aside>
</div>

  
    <header class="bd-header navbar navbar-expand-lg bd-navbar d-print-none">
    </header>
  

  <div class="bd-container">
    <div class="bd-container__inner bd-page-width">
      
      
      
      <div class="bd-sidebar-primary bd-sidebar">
        

  
  <div class="sidebar-header-items sidebar-primary__section">
    
    
    
    
  </div>
  
    <div class="sidebar-primary-items__start sidebar-primary__section">
        <div class="sidebar-primary-item">

  
    
  

<a class="navbar-brand logo" href="../index.html">
  
  
  
  
  
    
    
      
    
    
    <img src="../_static/logo.png" class="logo__image only-light" alt="PDF-Extract-Kit 0.1.0 文档 - Home"/>
    <script>document.write(`<img src="../_static/logo.png" class="logo__image only-dark" alt="PDF-Extract-Kit 0.1.0 文档 - Home"/>`);</script>
  
  
</a></div>
        <div class="sidebar-primary-item">

 <script>
 document.write(`
   <button class="btn search-button-field search-button__button" title="搜索" aria-label="搜索" data-bs-placement="bottom" data-bs-toggle="tooltip">
    <i class="fa-solid fa-magnifying-glass"></i>
    <span class="search-button__default-text">搜索</span>
    <span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd class="kbd-shortcut__modifier">K</kbd></span>
   </button>
 `);
 </script></div>
        <div class="sidebar-primary-item"><nav class="bd-links bd-docs-nav" aria-label="Main">
    <div class="bd-toc-item navbar-nav active">
        <p aria-level="2" class="caption" role="heading"><span class="caption-text">快速上手</span></p>
<ul class="current nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="installation.html">安装</a></li>
<li class="toctree-l1"><a class="reference internal" href="pretrained_model.html">模型权重下载</a></li>
<li class="toctree-l1 current active"><a class="current reference internal" href="#">快速开始</a></li>
</ul>
<p aria-level="2" class="caption" role="heading"><span class="caption-text">基础算法模块</span></p>
<ul class="nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="../algorithm/layout_detection.html">布局检测算法</a></li>
<li class="toctree-l1"><a class="reference internal" href="../algorithm/formula_detection.html">公式检测算法</a></li>
<li class="toctree-l1"><a class="reference internal" href="../algorithm/formula_recognition.html">公式识别算法</a></li>
<li class="toctree-l1"><a class="reference internal" href="../algorithm/ocr.html">光学字符识别(OCR)算法</a></li>
<li class="toctree-l1"><a class="reference internal" href="../algorithm/table_recognition.html">表格识别算法</a></li>
<li class="toctree-l1"><a class="reference internal" href="../algorithm/reading_order.html">阅读顺序算法</a></li>
</ul>
<p aria-level="2" class="caption" role="heading"><span class="caption-text">新任务拓展</span></p>
<ul class="nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="../task_extend/code.html">代码实现</a></li>
<li class="toctree-l1"><a class="reference internal" href="../task_extend/doc.html">文档补充</a></li>
<li class="toctree-l1"><a class="reference internal" href="../task_extend/evaluation.html">模型评测</a></li>
</ul>
<p aria-level="2" class="caption" role="heading"><span class="caption-text">支持的模型列表</span></p>
<ul class="nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="../models/supported.html">已支持的模型</a></li>
</ul>
<p aria-level="2" class="caption" role="heading"><span class="caption-text">模型性能评测</span></p>
<ul class="nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="../evaluation/layout_detection.html">布局检测算法评测</a></li>
<li class="toctree-l1"><a class="reference internal" href="../evaluation/formula_detection.html">公式检测算法评测</a></li>
<li class="toctree-l1"><a class="reference internal" href="../evaluation/formula_recognition.html">公式识别算法评测</a></li>
<li class="toctree-l1"><a class="reference internal" href="../evaluation/ocr.html">OCR算法评测</a></li>
<li class="toctree-l1"><a class="reference internal" href="../evaluation/table_recognition.html">表格识别算法评测</a></li>
<li class="toctree-l1"><a class="reference internal" href="../evaluation/reading_order.html">阅读顺序算法评测</a></li>
<li class="toctree-l1"><a class="reference internal" href="../evaluation/pdf_extract.html">PDF内容提取评测【端到端】</a></li>
</ul>
<p aria-level="2" class="caption" role="heading"><span class="caption-text">PDF项目</span></p>
<ul class="nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="../project/pdf_extract.html">文档内容提取项目</a></li>
<li class="toctree-l1"><a class="reference internal" href="../project/doc_translate.html">文档翻译项目</a></li>
<li class="toctree-l1"><a class="reference internal" href="../project/speed_up.html">模型加速项目</a></li>
</ul>

    </div>
</nav></div>
    </div>
  
  
  <div class="sidebar-primary-items__end sidebar-primary__section">
  </div>
  
  <div id="rtd-footer-container"></div>


      </div>
      
      <main id="main-content" class="bd-main" role="main">
        
        

<div class="sbt-scroll-pixel-helper"></div>

          <div class="bd-content">
            <div class="bd-article-container">
              
              <div class="bd-header-article d-print-none">
<div class="header-article-items header-article__inner">
  
    <div class="header-article-items__start">
      
        <div class="header-article-item"><button class="sidebar-toggle primary-toggle btn btn-sm" title="Toggle primary sidebar" data-bs-placement="bottom" data-bs-toggle="tooltip">
  <span class="fa-solid fa-bars"></span>
</button></div>
      
    </div>
  
  
    <div class="header-article-items__end">
      
        <div class="header-article-item">

<div class="article-header-buttons">


<a href="https://github.com/opendatalab/PDF-Extract-Kit" target="_blank"
   class="btn btn-sm btn-source-repository-button"
   title="源码库"
   data-bs-placement="bottom" data-bs-toggle="tooltip"
>
  

<span class="btn__icon-container">
  <i class="fab fa-github"></i>
  </span>

</a>






<div class="dropdown dropdown-download-buttons">
  <button class="btn dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false" aria-label="下载此页面">
    <i class="fas fa-download"></i>
  </button>
  <ul class="dropdown-menu">
      
      
      
      <li><a href="../_sources/get_started/quickstart.rst" target="_blank"
   class="btn btn-sm btn-download-source-button dropdown-item"
   title="下载源文件"
   data-bs-placement="left" data-bs-toggle="tooltip"
>
  

<span class="btn__icon-container">
  <i class="fas fa-file"></i>
  </span>
<span class="btn__text-container">.rst</span>
</a>
</li>
      
      
      
      
      <li>
<button onclick="window.print()"
  class="btn btn-sm btn-download-pdf-button dropdown-item"
  title="列印成 PDF"
  data-bs-placement="left" data-bs-toggle="tooltip"
>
  

<span class="btn__icon-container">
  <i class="fas fa-file-pdf"></i>
  </span>
<span class="btn__text-container">.pdf</span>
</button>
</li>
      
  </ul>
</div>




<button onclick="toggleFullScreen()"
  class="btn btn-sm btn-fullscreen-button"
  title="全屏模式"
  data-bs-placement="bottom" data-bs-toggle="tooltip"
>
  

<span class="btn__icon-container">
  <i class="fas fa-expand"></i>
  </span>

</button>



<script>
document.write(`
  <button class="btn btn-sm nav-link pst-navbar-icon theme-switch-button" title="light/dark" aria-label="light/dark" data-bs-placement="bottom" data-bs-toggle="tooltip">
    <i class="theme-switch fa-solid fa-sun fa-lg" data-mode="light"></i>
    <i class="theme-switch fa-solid fa-moon fa-lg" data-mode="dark"></i>
    <i class="theme-switch fa-solid fa-circle-half-stroke fa-lg" data-mode="auto"></i>
  </button>
`);
</script>


<script>
document.write(`
  <button class="btn btn-sm pst-navbar-icon search-button search-button__button" title="搜索" aria-label="搜索" data-bs-placement="bottom" data-bs-toggle="tooltip">
    <i class="fa-solid fa-magnifying-glass fa-lg"></i>
  </button>
`);
</script>
<button class="sidebar-toggle secondary-toggle btn btn-sm" title="Toggle secondary sidebar" data-bs-placement="bottom" data-bs-toggle="tooltip">
    <span class="fa-solid fa-list"></span>
</button>
</div></div>
      
    </div>
  
</div>
</div>
              
              

<div id="jb-print-docs-body" class="onlyprint">
    <h1>快速开始</h1>
    <!-- Table of contents -->
    <div id="print-main-content">
        <div id="jb-print-toc">
            
            <div>
                <h2> 目录 </h2>
            </div>
            <nav aria-label="Page">
                <ul class="visible nav section-nav flex-column">
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#id2">布局检测示例</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#id3">公式检测示例</a></li>
</ul>
            </nav>
        </div>
    </div>
</div>

              
                
<div id="searchbox"></div>
                <article class="bd-article">
                  
  <section id="id1">
<h1>快速开始<a class="headerlink" href="#id1" title="Link to this heading">#</a></h1>
<p>配置好PDF-Extract-Kit环境,并下载好模型后,我们可以开始使用PDF-Extract-Kit了。</p>
<section id="id2">
<h2>布局检测示例<a class="headerlink" href="#id2" title="Link to this heading">#</a></h2>
<p>布局检测提供了多种模型: <code class="docutils literal notranslate"><span class="pre">LayoutLMv3</span></code><code class="docutils literal notranslate"><span class="pre">YOLOv10</span></code><code class="docutils literal notranslate"><span class="pre">DocLayout-YOLO</span></code>, 相比与 <code class="docutils literal notranslate"><span class="pre">LayoutLMv3</span></code><code class="docutils literal notranslate"><span class="pre">YOLOv10</span></code> 速度更快, <code class="docutils literal notranslate"><span class="pre">DocLayout-YOLO</span></code> 则是基于 <code class="docutils literal notranslate"><span class="pre">YOLOv10</span></code> 的基础上进行多样性文档预训练及模型优化,速度快,精度高。</p>
<p><strong>1. 使用布局检测模型</strong></p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>python<span class="w"> </span>scripts/layout_detection.py<span class="w"> </span>--config<span class="w"> </span>configs/layout_detection.yaml
</pre></div>
</div>
<p>执行完之后,我们可以在 <code class="docutils literal notranslate"><span class="pre">outpus/layout_detection</span></code> 目录下查看检测结果。</p>
<div class="admonition note">
<p class="admonition-title">备注</p>
<p><code class="docutils literal notranslate"><span class="pre">layout_detection.yaml</span></code> 设置输入、输出及模型配置,布局检测更详细教程见<a class="reference internal" href="../algorithm/layout_detection.html#algorithm-layout-detection"><span class="std std-ref">布局检测算法</span></a></p>
</div>
</section>
<section id="id3">
<h2>公式检测示例<a class="headerlink" href="#id3" title="Link to this heading">#</a></h2>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>python<span class="w"> </span>scripts/formula_detection.py<span class="w"> </span>--config<span class="w"> </span>configs/formula_detection.yaml
</pre></div>
</div>
<p>执行完之后,我们可以在 <code class="docutils literal notranslate"><span class="pre">outpus/formula_detection</span></code> 目录下查看检测结果。</p>
<div class="admonition note">
<p class="admonition-title">备注</p>
<p><code class="docutils literal notranslate"><span class="pre">formula_detection.yaml</span></code> 设置输入、输出及模型配置,公式检测更详细教程见 <a class="reference internal" href="../algorithm/formula_detection.html#algorithm-formula-detection"><span class="std std-ref">公式检测算法</span></a></p>
</div>
</section>
</section>


                </article>
              

              
              
              
              
                <footer class="prev-next-footer d-print-none">
                  
<div class="prev-next-area">
    <a class="left-prev"
       href="pretrained_model.html"
       title="previous page">
      <i class="fa-solid fa-angle-left"></i>
      <div class="prev-next-info">
        <p class="prev-next-subtitle">上一页</p>
        <p class="prev-next-title">模型权重下载</p>
      </div>
    </a>
    <a class="right-next"
       href="../algorithm/layout_detection.html"
       title="next page">
      <div class="prev-next-info">
        <p class="prev-next-subtitle">下一页</p>
        <p class="prev-next-title">布局检测算法</p>
      </div>
      <i class="fa-solid fa-angle-right"></i>
    </a>
</div>
                </footer>
              
            </div>
            
            
              
                <div class="bd-sidebar-secondary bd-toc"><div class="sidebar-secondary-items sidebar-secondary__inner">


  <div class="sidebar-secondary-item">
  <div class="page-toc tocsection onthispage">
    <i class="fa-solid fa-list"></i> 目录
  </div>
  <nav class="bd-toc-nav page-toc">
    <ul class="visible nav section-nav flex-column">
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#id2">布局检测示例</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#id3">公式检测示例</a></li>
</ul>
  </nav></div>

</div></div>
              
            
          </div>
          <footer class="bd-footer-content">
            
<div class="bd-footer-content__inner container">
  
  <div class="footer-item">
    
<p class="component-author">
作者: PDF-Extract-Kit Contributors
</p>

  </div>
  
  <div class="footer-item">
    

  <p class="copyright">
    
      © Copyright 2024, OpenDataLab.
      <br/>
    
  </p>

  </div>
  
  <div class="footer-item">
    
  </div>
  
  <div class="footer-item">
    
  </div>
  
</div>
          </footer>
        

      </main>
    </div>
  </div>
  
  <!-- Scripts loaded after <body> so the DOM is not blocked -->
  <script src="../_static/scripts/bootstrap.js?digest=dfe6caa3a7d634c4db9b"></script>
<script src="../_static/scripts/pydata-sphinx-theme.js?digest=dfe6caa3a7d634c4db9b"></script>

  <footer class="bd-footer">
  </footer>
  </body>
</html>