javascript - 为什么从 PDF 复制时缺少格式

Question

我正在使用 Summernote 编辑器，从 PDF 文档复制和粘贴时它缺少格式。

所有其他编辑器(例如 google doc 和 onedrive doc)中都存在此问题。

但从 PDF 文档复制和粘贴时，msWord 会保留格式。

任何人都了解 MS WORD 是如何做到这一点的，因为从 PDF 复制时剪贴板不会保留任何 html 标签？

粘贴数据时我检查了剪贴板。它显示了以下仅包含 div 标签的结果。

<div>This is Heading1 Text</div><div>This is a regular paragraph with the default style of Normal. This is a regular paragraph with the default style of Normal. This is a regular paragraph with the default style of Normal. This is a regular paragraph with the default style of Normal. This is a regular paragraph with the default style of Normal.</div><div>This is a Defined Block Style Called BlockStyleTest</div><div>This is more Normal text.</div><div>This is Heading 2 text</div><div>This is more Normal text. This is bold, this is italic, and this is bold italic. This is normal. This is in a defined inline style called InlineStyle. This is normal. This is red text. This is normal.</div><div>This block is centered.</div><div>This is left-aligned.</div><div> First item of bulleted list.</div><div> Second item of bulleted list.</div><div>Second paragraph of second item of bulleted list.</div><div> Third item of bulleted list.</div><div>o First item of third item’s nested list</div><div>o Second item of third item’s nested list</div><div> Fourth and final item of main bulleted list.</div><div>This is Normal text.</div><div>1. First item of numbered list.</div><div>2. Second item of numbered list.</div><div>Second paragraph of second item of numbered list.</div><div>3. Third item of numbered list.</div><div>Here is a BMP picture:</div><div>Here is a JPEG picture:</div><div>Here is a PNG picture:</div><div>Here is a table:</div><div>New York Boston Detroit</div><div>Baseball Mets Yankees Red Sox Tigers</div><div>Hockey Rangers Islanders Bruins Red Wings</div><div>Football Giants Jets Patriots Lions</div><div>Here is an embedded Excel spreadsheet:</div><div>pre- post- pre- postdogs</div><div>1234.43 0.33 354.30 777.00</div><div>cats 432.00 -432.20 654.45 333.00</div><div>turkeys 3.30 4.66 34.65 132.10</div><div>fish 52.55 55.33 37.88 31.50</div><div>total 1722.28 -371.88 1081.28 1273.60</div><div>2001 2002</div><div>https://en.wikipedia.org/wiki/United_States</div><div>This is more Underlined text.</div><div>This is more Strikethrough text.</div><div>Test superscript text. This is superscript texts.</div><div>Test subscript text. This is subscript texts.</div><div>Here are some special characters -!”&amp;’(*)+’./:;?_ÈÓ 12\</div><div>This concludes our test.</div>

Answer 1

PDF 使用 PostScript，看来您在从 PostScript 复制和粘贴到“Summernote”等时遇到问题。MS Word 显然多年来花了很多时间来与 PostScript 很好地配合，必须有 Word 用来实现它的信息是 PostScript 并正确处理粘贴。

顺便说一句，PostScript 比看起来要复杂得多。

背景信息: https://youtu.be/48tFB_sjHgY https://youtu.be/guXgBe2wvEA https://youtu.be/-cFOsAzigyQ https://youtu.be/S_NXz7I5dQc

解决方法: 您可以尝试直接从 Word 打开 PDF，然后复制并粘贴到 Summernote 中。 (我还没有验证这是否有效)

结论: 我看不出有什么方法可以解决您的问题，因为这完全取决于接收程序，在您的情况下是 Summernote 和其他程序。