需要将DOC 文件(DOC file)转换为PDF吗？或者可能是PDF到JPG 文件(JPG file)？总会有一段时间，您必须将一种类型的文件转换为另一种类型的文件，并且您可能希望尽可能快且尽可能便宜地做到这一点。当然，如果您在办公室工作并且必须每天转换文件，您的公司可能会购买商业转换应用程序(converting application)，这绝对是最佳选择。
但是，如果您一年只需要转换几次文件，并且不想在仅将Word 文档(Word docs)转换为PDF文件的程序上花费 50 美元，那么您唯一的选择就是使用免费的在线转换(online conversion)工具。这些基本上是可以让您在许多不同格式之间进行转换的网站，并且通常对于小型转换项目是免费的。如果您需要转换更多文件或更大文件等，他们会通过尝试让您注册来赚钱。
在本文中，我将提到几个我使用过的在线转换网站，它们做得很好，尽管它们并不完美。即使使用昂贵的转换软件(conversion software)，您也总会遇到转换输出(conversion output)不太正确的情况，在这种情况下，您只需要尝试其他服务或编辑文件以使其更容易转换。
扎姆扎尔
ZamZar自 2006 年以来一直存在，即使他们推动让您注册他们的月度计划，该服务仍然可以免费使用。当然，当他们忙的时候，免费用户的所有转化都会被推到所有付费用户后面。根据您使用该服务的时间和日期(time and day)，获取转换后的文件可能需要 2 分钟到 2 小时不等。
刚开始时，他们只支持几十种文件转换，但现在他们可以做超过 1200 种文件转换。这包括文档、音频、视频、图像、电子书等。但是，正如我之前提到的，如果您使用免费服务，它仅对少量相对较小的文件有用。要使用它，只需开始填写顶部的部分。
首先，单击选择文件(Choose Files)并选择要转换的文件。步骤 2(Step 2)中的下拉菜单将自动填充可用于转换的格式。对于Word 文档(Word doc)，这些是我的转换选项：
然后只需输入您的电子邮件地址并单击(email address and click)转换(Convert)。转换完成后，您会收到一封电子邮件，其中包含已转换文件的链接。
Online-Convert.com
另一个不错的在线转换工具(online conversion tool)是Online-Convert.com。与Zamzar不同，该网站完全免费，完全没有付费选项。他们基本上靠捐款和广告收入(ad revenue)生存。从技术上讲，您可以转换的文件数量似乎没有限制，但我确信在某一点上有一些上限。
无论如何，主页分为音频，视频，图像，文档等部分。继续并单击下拉菜单并选择要将文件转换为的格式，然后单击 Go。然后单击选择文件(Choose Files)并选择要转换的文件。这个网站的好处是，如果你愿意，它还允许你从你的Dropbox 帐户中进行选择，并且它有一些使用(Dropbox account)OCR的可选设置，甚至可以为源文件(source file)选择不同的语言，尽管你的里程会有很大差异。
另一个不错的功能是您不必输入任何电子邮件地址或任何个人信息！只需单击(Just click) 转换文件(Convert file)，它就会立即转换并直接下载到您的计算机。无需等待！之后，如果您想对文件执行其他操作，该服务会为您提供一系列其他选项：
这是我使用过的两个网站，在速度和转换质量(speed and conversion quality)方面都取得了不错的效果。您也可以下载转换软件(conversion software)，但几乎不可能找到可以处理如此多不同类型转换的免费软件程序。如果您需要转换视频文件，您可以使用更多免费选项，例如很棒的HandBrake。当涉及到document conversion时，那些免费选项根本不存在。如果您知道有利于文档转换(document conversion)的免费软件程序，请在评论中告诉我们。享受！
Convert Between Many Different Files Types Online
Need to соnvert a DOC file to PDF? Or maybe a PDF to a JPG file? There will always comе a time whеn you’ll haνe to convert a filе of one tyрe into another and you will probably want to do it as fаst and as cheap as possible. Of course, if you work in an office and have to convert files everyday, your company will probably purchase a cоmmercial converting apрlicatiоn and that’s definitely the best optiоn.
However, if you only need to convert files a couple of times a year and you don’t want to drop $50 on a program that just converts Word docs to PDF files, then you only other option is to use free online conversion tools. These are basically sites that let you convert between many different formats and are usually free for small conversion projects. They make money by trying to get you to sign up if you need to convert more files or larger files, etc.
In this article, I’ll mention a couple of online conversion sites that I have used and that do a pretty good job, though they are not perfect. Even with expensive conversion software, you’ll always run into cases where the conversion output isn’t quite right and in those cases, you just have to try another service or edit your file to make it easier to convert.
ZamZar
ZamZar has been around since 2006 and even though they push to get you to sign up for their monthly plans, the service still works well for free too. Of course, when things get busy for them, all the conversions for free users get pushed to the back behind all paying users. Depending on the time and day you use the service, it can take anywhere from 2 mins to 2 hours to get your converted files.
When they first started off, they only supported a few dozen types of files conversions, but now they can do over 1200 types of file conversions. This includes documents, audio, video, images, ebooks and more. As I mentioned earlier, though, it’s only useful for a small number of files of relatively small size if you’re using the free service. To use it, just start filling out the section at the top.
First, click Choose Files and select the file you want to convert. Automatically, the drop down in Step 2 will populate with the formats that are available for conversion. For a Word doc, these were my conversion options:
Then just type in your email address and click on Convert. When your conversion is complete, you’ll get an email with a link to your converted files.
Online-Convert.com
Another good online conversion tool is Online-Convert.com. Unlike Zamzar, this site is completely free with no paid options at all. They basically survive on donations and ad revenue it seems. Technically, there doesn’t seem to be a limit on the number of files you can convert, but I’m sure there’s some cap at a point.
Anyway, the main page is broken down into sections such as audio, video, image, document, etc. Go ahead and click the drop down and choose the format you want to convert your files to and click Go. Then click Choose Files and select the files you want converted. The nice thing about this site is that it lets you also choose from your Dropbox account if you want and it has some optional settings for using OCR and even being able to pick a different language for the source file, though your mileage will vary greatly.
Another nice feature is the fact that you don’t have to type in any email address or any personal info! Just click Convert file and it will convert instantly and download right to your computer. No waiting! After that, the service gives you a whole slew of other options in case you want to do something else with the file:
Those are two sites that I’ve used and have had good results with in terms of speed and conversion quality. You can also download conversion software, but it’s nearly impossible to find a freeware program that can handle so many different types of conversions. If you need to convert video files, you have a lot more free options like the awesome HandBrake. When it comes to document conversions, those free options just don’t exist. If you know of a freeware program that’s good for document conversion, let us know in the comments. Enjoy!
