Wkhtmltopdf Characters in single line partially cut between pages

问题

I am working in a project using ruby on rails(3.1). My requirement is to produce pdf from the html content. So I use pdfkit gem.

In some pages, characters in single line partially cut between pages. When I convert html convert to pdf using pdfkit gem

version of wkhtmltopdf: wkhtmltopdf -- 0.11.0 rc1

operating system: Linux CentOS 5.5

In the image below showing character partially cut between pages.

Please suggest a solution.

Example 1

Example 2

回答1:

I just ran across this and found something that resolved the issue for me. In my particular case, there were divs with display: inline-block; margin-bottom: -20px;. Once I changed them to block and reset the margin-bottom, the line splitting disappeared. YMMV.

回答2:

According to some documentation I found (see Page Breaking), this is a known issue and suggests using CSS page breaks to insert page breaks (assuming you are using patched version of QT):

The current page breaking algorithm of WebKit leaves much to be desired. Basically webkit will render everything into one long page, and then cut it up into pages. This means that if you have two columns of text where one is vertically shifted by half a line. Then webkit will cut a line into to pieces display the top half on one page. And the bottom half on another page. It will also break image in two and so on. If you are using the patched version of QT you can use the CSS page-break-inside property to remedy this somewhat. There is no easy solution to this problem, until this is solved try organising your HTML documents such that it contains many lines on which pages can be cut cleanly.

See also: http://code.google.com/p/wkhtmltopdf/issues/detail?id=9, http://code.google.com/p/wkhtmltopdf/issues/detail?id=33 and http://code.google.com/p/wkhtmltopdf/issues/detail?id=57.

回答3:

I did have this problem with a table:

Then I added this to my CSS:

table, img, blockquote {page-break-inside: avoid;}

This fixed the problem:

回答4:

In my case, the issue was resolved by commenting out the following css:

html, body {
  overflow-x: hidden;
}

In general, check if any tags have overflow set as hidden and remove it or set it to visible.

Btw, I am using wkhtmltopdf version 0.12.2.1 on Windows 8.

回答5:

The cut text problem is a known webkit problem and it seems developers found a solution inside wkhtmltopdf. Updating to 0.12.1 will fix the cut-text problem (if you don't want to waste time with compilations, you can just take the binary file from here: https://github.com/h4cc/wkhtmltopdf-amd64 ).

回答6:

I scoured the internet for a couple of weeks, trying to overcome this issue. None of the solutions I found worked for me, but something else did.

I had a two column layout where the text was getting cut off mid-text. In the broken state, my basic structure looked like this:

@media print {
  * {
    page-break-inside: avoid;
    page-break-after: avoid;
    page-break-before: avoid;
  }
}
.col-9{
  display: inline-block;
  width: 70%;
}
.col-9{
  display: inline-block;
  width: 25%;
}

<div class="col-9">
  [a lot of text here, that would spill over multiple pages]
</div>
<div class="col-3">
  [a short sidebar here]
</div>

I fixed it by changing it to:

@media print {
  * {
    page-break-inside: avoid;
    page-break-after: avoid;
    page-break-before: avoid;
  }
}

.col-9{
  display: block;
  float: left;
  width: 70%;
}
.col-9{
  display: block;
  float: left;
  width: 25%;
}
.clear{
  clear: both;
}

<div class="col-9">
  [a lot of text here, that no longer split mid-line.]
</div>
<div class="col-3">
  [a short sidebar here]
</div>
<div class="clear"></div>

For some reason, the tool could not handle the display: inline-block setup. It works with floats. I'm running version 0.12.4.

来源：https://stackoverflow.com/questions/8786755/wkhtmltopdf-characters-in-single-line-partially-cut-between-pages

标签

html

ruby-on-rails

ruby

wkhtmltopdf

pdfkit