blocks|key|921944|text|我发现abcPDF很奇怪，而且不可预测。话虽如此，可能发生的情况是，页面大小和页面分页后的组合可能是罪魁祸首。减小页面高度和/或删除分页符。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|921945|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I've found abcPDF to be strange and unpredictable. That being said, what may be happening is that the combination of the page size and page-break-after may be the culprit. Reduce your page height and/or remove the page break.

blocks|key|2717852|text|如果您使用的是AddImageUrl方法，那么有一件事值得一提，那就是HTML标记的有效性。错误的标记、损坏的标签等可能会导致呈现的PDF不符合预期。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2717853|无论如何，WebSuperGoo有很好的支持，当你遇到异常情况时，它的响应很好。通常，如果您将源代码发送给他们，他们可以为您的实现提供解决方案或提供替代方案。|2717854|entityMap^0|7|B|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

One thing worth revisiting is the validity of your HTML markup if you are using the <code>AddImageUrl</code> method. Instances where the rendered PDF is not as expected can result from bad markup, busted tags, etc. 

For what it's worth, WebSuperGoo has excellent support and respond great when you encounter anomalies. Often they can advise a work around or provide alternatives to your implementation if you send them your source code.

blocks|key|173841|text|我也遇到过同样的问题。空页面是由于CSS中的-break-after:+always;造成的。不仅仅是ABCpdf，打印出来的也会多出一页。因此，我使用以下代码消除了最后一个页面：MyDoc.Delete(MyDoc.Page);|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|173842|然而，这导致了不同类型的问题。在安装了IE8的开发服务器上，我得到了一个额外的空白页面，而在安装了IE6的生产服务器上，我没有得到额外的空白页面。因此，我给websupergoo的支持团队发了一封电子邮件，告诉我如何查找空白页面。这个想法是迭代通过pdf，识别所有空白页面，并使用上面的逻辑删除它们。|173843|我赞同Jakkwylde的观点。Websupergoo的人非常乐于助人，而且反应迅速。我还遇到了另一个让ABCpdf在64位下工作的问题，我花了将近一天的时间试图解决这个问题。他们为我提供了多个可以尝试的场景。他们的支持很划算，我在几分钟内就让我的应用程序启动并运行起来。|173844|entityMap^0|M|L|2I|P|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|R|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|K|$]]

I have experienced the same exact problem. the empty page is due to the page-break-after: always; in the CSS. Not just ABCpdf but also the printed will spit out an extra page. So I used the following code to eliminate the last page:
MyDoc.Delete(MyDoc.Page); 
This however lead to a different kind of a problem. On development server, which has IE 8 I get an extra blank page and on production where I have IE6, I get no extra blank page. So I have emailed the support team at websupergoo to show me a way to look for a blank page. The idea is to iterate through a pdf and identify all blank pages and delete them using above logic. 
And I second Jakkwylde's opinion. Websupergoo folks are extremely helpful and prompt in responding. I had another problem getting ABCpdf to work under 64 bit and had spent almost a day trying to figure it out. They provided me multiple scenarios which I could try out. Their support was right on the money and I got my app up and running in minutes.

blocks|key|1309437|text|库什是正确的，因为“我也遇到过同样的问题。空页是由于页面中断后:总是；在CSS中。不仅仅是ABCpdf，打印出来的也会多出一页。”|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1309438|如果一个div有“-break-after:always”，IE就会一直按字面意思开始一个新的页面，如果没有添加任何东西，它将打印为空白。Firefox没有。|1309439|abcpdf使用IE8s渲染引擎，因此会生成一个空白页面。对于操作而言，只需使用显式高度就可以解决问题，并且引擎将为您插入分页符。|1309440|我正在尝试解决一个类似的问题，我不能明确地设置高度，因为有时内容可能需要2页。(每一页对应一个人，打印时每个人都应该从新的一页开始)。我也给abcpdf发了电子邮件，看看他们是否有一个黑客修复程序来检测空白页面，但我很好奇是否有人知道如何修复潜在的问题和css+hack+IE8，以便使它不打印最终页面，如果是空的。我猜这是不可能的，但我想确保我没有遗漏一些明显的东西。|1309441|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Kush is correct in that "I have experienced the same exact problem. the empty page is due to the page-break-after: always; in the CSS. Not just ABCpdf but also the printed will spit out an extra page."

If a div has "page-break-after:always" IE will literally always start a new page, and if nothing is added it will just print blank. Firefox does not.

abcpdf uses IE8s rendering engine, and as such makes a blank page. For purposes of the OP, just using an explicit height should solve the problem, and the engine will insert the page breaks for you.

I am trying to solve a similar issue, where I can't set the height explicitly because sometimes the content may take 2 pages. (Each page corresponds to a person, and each person should start on a new page when printed). I emailed abcpdf as well to see if they have a hack fix to detect the empty page, but was curious if anyone knows how to fix the underlying problem and css hack IE8 so as to make it not print the final page if empty. I'm guessing it's not possible, but wanted to make sure I'm not missing something obvious.

blocks|key|1309463|text|ABCPDF的AddImageURL()方法是一种松散绑定的方法，它没有将html紧密地呈现在所需的区域内，从而导致新的空白页面。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1309464|尝试使用AddImageHTML()方法将所需的HTML转换为PDF。|1309465|Doc+theDoc+=+new+Doc();
theDoc.Page+=+theDoc.AddPage();

int+theID+=+0;
theDoc.SetInfo(0,+"CheckBgImages",+"1");
theDoc.SetInfo(0,+"RenderDelay",+"5000");
theDoc.HtmlOptions.Engine+=+EngineType.MSHtml;
theID+=+theDoc.AddImageHtml(HTML);

while+(true)
{
+if+(!theDoc.Chainable(theID))
++++++++++++++++break;
++++++++++++theDoc.Page+=+theDoc.AddPage();
++++++++++++theID+=+theDoc.AddImageToChain(theID);
++++++++}

++++++++for+(int+i+=+0;+i+<=+theDoc.PageCount;+i%2B%2B)
++++++++{
++++++++++++theDoc.PageNumber+=+i;
++++++++++++theDoc.Flatten();
++++++++}

++++++++theDoc.Save(HttpContext.Current.Server.MapPath(Path));
++++++++theDoc.Clear();|code-block|syntax|javascript|1309466|它总是会给出准确的结果。|1309467|entityMap^0|7|D|0|4|E|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

The <code>AddImageURL()</code> method of ABCPDF is loosely bind method which doesn't render html tightly within required area which causes new blank page.

try to use <code>AddImageHTML()</code> method to convert your desired HTML into PDF..

<pre><code>Doc theDoc = new Doc();
theDoc.Page = theDoc.AddPage();

int theID = 0;
theDoc.SetInfo(0, "CheckBgImages", "1");
theDoc.SetInfo(0, "RenderDelay", "5000");
theDoc.HtmlOptions.Engine = EngineType.MSHtml;
theID = theDoc.AddImageHtml(HTML);

while (true)
{
 if (!theDoc.Chainable(theID))
 break;
 theDoc.Page = theDoc.AddPage();
 theID = theDoc.AddImageToChain(theID);
 }

 for (int i = 0; i &lt;= theDoc.PageCount; i++)
 {
 theDoc.PageNumber = i;
 theDoc.Flatten();
 }

 theDoc.Save(HttpContext.Current.Server.MapPath(Path));
 theDoc.Clear();
</code></pre>

It will always give accurate results.

blocks|key|173362|text|protected+void+RemoveBlankPages(Doc+pdf)
{
++++for+(int+i+=+pdf.PageCount;+i+>+0;+i--)
++++{
++++++++pdf.PageNumber+=+i;

++++++++//get+the+pdf+content
++++++++string+textContent+=+pdf.GetText("Text");

++++++++//delete+the+page+if+it+is+blank
++++++++if+(string.IsNullOrEmpty(textContent))
++++++++++++pdf.Delete(pdf.Page);
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|173363|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>protected void RemoveBlankPages(Doc pdf)
{
 for (int i = pdf.PageCount; i &gt; 0; i--)
 {
 pdf.PageNumber = i;

 //get the pdf content
 string textContent = pdf.GetText("Text");

 //delete the page if it is blank
 if (string.IsNullOrEmpty(textContent))
 pdf.Delete(pdf.Page);
 }
}
</code></pre>

blocks|key|919339|text|为了避免最后一页的分页，我做了这样的事情，它起作用了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|919340|我确保最后一个页面没有分页:通常，这可以使用任何模板或前端框架(如angularJS+)来完成，但在这个示例中，我使用刀片模板(但任何php都可以……)|919341|@if+($last_page)
+++<div+class='footer+last-page'>
@else
+++<div+class='footer'>|code-block|syntax|javascript|919342|然后我在我的样式表中有这个|919343|.footer+{
++++page-break-after:always;
}

.last-page+{
++++page-break-after:avoid;
}|919344|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

To avoid page breaking in the last page, I did something like this and it worked.

I made sure that the last page didn't have the page-break-after: always, this can be done with any templating or front-end framework like angularJS, but for this example I use blade templating (but any php will do...)

<pre><code>@if ($last_page)
 &lt;div class='footer last-page'&gt;
@else
 &lt;div class='footer'&gt;
</code></pre>

and then I have this in my style sheet

<pre><code>.footer {
 page-break-after:always;
}

.last-page {
 page-break-after:avoid;
}
</code></pre>

blocks|key|922118|text|我们只有在生产环境中有同样的问题，但在测试环境中没有。我们只在html中的多个地方使用了page-brek-after。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|922119|修复了first+issue：我通过一个接一个地删除page-brek-after属性发现了这个问题，这最终给了我DIV部分，其中分页是由它的一些元素引起的。|offset|length|style|BOLD|922120|我修复了DIV中每个元素的高度，这最终解决了我的问题，而不删除page-break-after属性。|922121|修复了类似的问题：如果你有一个自定义的硬编码页脚，确保通过增加/减少它的高度和边界来检查。|922122|entityMap^0|0|0|E|0|0|0|8|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@$D|T|E|U|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|M|$]]

We had the same issue in production environment only but not in test environment. We only had page-brek-after used at multiple places in the html. 

Fix for first issue: I spotted the issue by removing the page-brek-after attributes one by one and this finally gave me the DIV section where page break was causing by some of it's element.

I fixed the height of each elements inside the DIV and this finally fixed my issue without removing the page-break-after attribute.

Fix for similar issue: If you have a custom hard coded footer, make sure to check by increasing/decresing it's height and margine.

blocks|key|1309654|text|我也有同样的事情发生在pdf的html中，abcpdf添加了一个空白页面，在其余内容之前只有一个页脚(如页面1)。当我的内容包含一个由div包围的表时，就会发生这种情况，其中div的高度是height:auto，后面跟着一个page-break-before:+always。只有当表数据包含""、string.Empty或一行文本时才会发生这种情况。如果表数据包含2行或更多文本，则不存在问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1309655|我通过在div中添加一个min-hight:+1in样式来解决这个问题，这个样式的高度是:+auto。|1309656|entityMap^0|2M|B|34|P|42|2|45|C|0|C|E|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

I had this same thing happen with html to pdf where abcpdf was adding a blank page with nothing but a footer on it before the rest of the content (as page 1). This would occur when my content included a table surrounded by a div where the div height was <code>height:auto</code> followed by a <code>page-break-before: always</code>. It only happened when the table data contained <code>&quot;&quot;</code>, <code>string.Empty</code>, or a single line of text. If the table data contained 2 lines or more of text, the issue did not present.
I solved it by adding a <code>min-hight: 1in</code> style to the div that had height: auto.

I have an HTML report, with each print page contained by a <code>&lt;div class="page"&gt;</code>. The page class is defined as

<pre><code>width: 180mm;
height: 250mm;
page-break-after: always;
background-position: centre top;
background-image: url(Images/MainBanner.png);
background-repeat: no-repeat;
padding-top: 30mm;
</code></pre>

After making a few changes to my report content, when I call abcPDF to convert the report to PDF, suddenly I'm getting a blank page inserted after every real report page. I don't want to roll back the changes I've just made to remove this problem, so I'm hoping someone may know why the extra pages are being inserted.

Extra blank page when converting HTML to PDF using abcPDF

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个超文本标记语言报告，每个打印页都包含一个<div class="page">。页面类定义为width: 180mm;height: 250mm;page-break-after: always;background-position: centre top;background-image: url(Image...

问使用abcPDF将HTML转换为PDF时的额外空白页
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问使用abcPDF将HTML转换为PDF时的额外空白页EN