我正在寻找任何可以忠实地将 .html 文件转换为图像格式的实用程序——最好是 png 或 jpeg。我已经用谷歌搜索了几个小时并下载了十几个免费试用版，但似乎没有任何效果。 Adobe Acrobat Pro 几乎可以工作，但它决定缩小表格单元格以适应页面而不是缩小整个表格。
感谢任何建议。
问候。
【问题讨论】：
我正在使用 wkhtmltoimage。
它是一个快速的命令行工具，它使用 webkit 库来渲染任何网站。 有两个版本，一个是生成pdf，一个是生成图片。
wkhtmltoimage 适用于 Windows、Linux 和 Mac。
http://code.google.com/p/wkhtmltopdf/
/wkhtmltoimage-i386 -H
Name:
wkhtmltoimage 0.10.0 rc2
Synopsis:
wkhtmltoimage [OPTIONS]... <input file> <output file>
Description:
Converts an HTML page into an image,
General Options:
--allow <path> Allow the file or files from the specified
folder to be loaded (repeatable)
--checkbox-checked-svg <path> Use this SVG file when rendering checked
checkboxes
--checkbox-svg <path> Use this SVG file when rendering unchecked
checkboxes
--cookie <name> <value> Set an additional cookie (repeatable)
--cookie-jar <path> Read and write cookies from and to the
supplied cookie jar file
--crop-h <int> Set height for croping
--crop-w <int> Set width for croping
--crop-x <int> Set x coordinate for croping
--crop-y <int> Set y coordinate for croping
--custom-header <name> <value> Set an additional HTTP header (repeatable)
--custom-header-propagation Add HTTP headers specified by
--custom-header for each resource request.
--no-custom-header-propagation Do not add HTTP headers specified by
--custom-header for each resource request.
--debug-javascript Show javascript debugging output
--no-debug-javascript Do not show javascript debugging output
(default)
--encoding <encoding> Set the default text encoding, for input
-H, --extended-help Display more extensive help, detailing
less common command switches
-f, --format <format> Output file format (default is jpg)
--height <int> Set screen height (default is calculated
from page content) (default 0)
-h, --help Display help
--htmldoc Output program html help
--images Do load or print images (default)
--no-images Do not load or print images
-n, --disable-javascript Do not allow web pages to run javascript
--enable-javascript Do allow web pages to run javascript
(default)
--javascript-delay <msec> Wait some milliseconds for javascript
finish (default 200)
--load-error-handling <handler> Specify how to handle pages that fail to
load: abort, ignore or skip (default
abort)
--disable-local-file-access Do not allowed conversion of a local file
to read in other local files, unless
explecitily allowed with --allow
--enable-local-file-access Allowed conversion of a local file to read
in other local files. (default)
--manpage Output program man page
--minimum-font-size <int> Minimum font size
--password <password> HTTP Authentication password
--disable-plugins Disable installed plugins (default)
--enable-plugins Enable installed plugins (plugins will
likely not work)
--post <name> <value> Add an additional post field (repeatable)
--post-file <name> <path> Post an additional file (repeatable)
-p, --proxy <proxy> Use a proxy
--quality <int> Output image quality (between 0 and 100)
(default 94)
--radiobutton-checked-svg <path> Use this SVG file when rendering checked
radiobuttons
--radiobutton-svg <path> Use this SVG file when rendering unchecked
radiobuttons
--readme Output program readme
--run-script <js> Run this additional javascript after the
page is done loading (repeatable)
-0, --disable-smart-width Use the specified width even if it is not
large enough for the content
--stop-slow-scripts Stop slow running javascripts (default)
--no-stop-slow-scripts Do not Stop slow running javascripts
(default)
--transparent Make the background transparent in pngs
--use-xserver Use the X server (some plugins and other
stuff might not work without X11)
--user-style-sheet <url> Specify a user style sheet, to load with
every page
--username <username> HTTP Authentication username
-V, --version Output version information an exit
--width <int> Set screen width (default is 1024)
(default 1024)
--window-status <windowStatus> Wait until window.status is equal to this
string before rendering page
--zoom <float> Use this zoom factor (default 1)
Specifying A Proxy:
By default proxy information will be read from the environment variables:
proxy, all_proxy and http_proxy, proxy options can also by specified with the
-p switch
<type> := "http://" | "socks5://"
<serif> := <username> (":" <password>)? "@"
<proxy> := "None" | <type>? <sering>? <host> (":" <port>)?
Here are some examples (In case you are unfamiliar with the BNF):
http://user:password@myproxyserver:8080
socks5://myproxyserver
None
Contact:
If you experience bugs or want to request new features please visit
<http://code.google.com/p/wkhtmltopdf/issues/list>, if you have any problems
or comments please feel free to contact me: <uuf6429@gmail.com>
演示：
./wkhtmltoimage-i386 "http://stackoverflow.com/questions/11907986/convert-html-file-to-image/11908055#11908055" demo.png
【讨论】：
还有 PhantomJS（参见http://phantomjs.org）。 我在用 PHP 编写的搜索引擎中使用它来生成网站缩略图。 和wkhtmltoimage一样，它是一个基于WebKit的命令行程序，可以生成图片和PDF。但由于它是一个完整的浏览器，它使用 JavaScript 来进行处理。
编辑：有关图像渲染的具体示例，请参阅 https://github.com/ariya/phantomjs/wiki/Screen-Capture。
【讨论】：